School Science Lessons
2024-04-18
Goat Project
(GoatProj)
Contents
Preface
1.0.0 Advantages and disadvantages of keeping goats
2.0.0 Anatomy of goats
10.0 Behaviour of goats
4.0.0 Breeds of goats
3.1.0 Care for goats
14.0.0 Diseases of goats
12.0.0 Feeding goats
3.0.0 Keeping methods
19.0.0 Goat meat
15.0.0 Milking goats
5.0.0 Planning the goat project
8.0.0 Planning to buy goats
6.0.0 Rearing a kid
11.0.0 Surgical procedures
11.3.0 Tethering
1.16 Records
2.0.0 Anatomy of goats
2.0.0 Parts of a goat
16.0.0 Post-mortem, digestive organs
17.0.0 Reproductive organs
11.0.0 Surgical procedures
Assistance from veterinary surgeon required.
11.1.0 Castration
11.2.0 Paring the hooves
11.4.0 Drenching
11.5.0 Disbudding
11.6.0 Deodorizing
12.0.0 Feeding goats
12.1.0 Food needs of kids
12.2.0 Food needs of adult goats
13.0.0 Breeding goats
11.7.0 Weaning
14.0.0 Diseases of goats
14.2.0 Bloat
14.6.0 Enterotoxaemia, Pulpy-kidney disease, Overeating disease
14.5.0 Foot rot
14.1.0 Mastitis
14.7.0 Milk fever
14.3.0 Parasitic worms
14.4.0 Pregnancy toxaemia
4.0.0 Breeds of goats
4.1.0 Anglonubian breed
4.2.0 British Saanen breed
4.3.0 British Alpine breed
4.4.0 Toggenburg breed
4.5.0 Australian Brown breed
4.6.0 Australian Melaan breed
4.7.0 Boer Goat breed
4.8.0 Rangeland Goat breed
4.9.0 Kalahari Red breed
4.10.0 Australian Angora breed, mohair
4.11.0 Australian Cashmere breed
Introduction
The domestic goats, farm goats, (Capra hircus), Family Bovidae, are useful animals, because they can produce meat, milk and fibre for the people to eat, drink and wear.
Some people say that goats are bad animals to keep, because they eat the leaves of shrubs and young trees, and also grass.
They can be very destructive.
However, if they are managed properly, they are not so damaging if building a fence around a goat pasture is possible, so they cannot escape and run away into the hills.
Five to seven head of goats can be run where one cow can be run.
Goats can also help to control woody weeds such as blackberries and wattle.
Feral goats can live quite well by themselves in the wild state.
Goats have done well in Fiji and other Pacific islands, but pure bred European milking breeds are not recommended for tropical regions, because they have a high mortality from diseases.
Goat names
Female goats are called does or nannies or nanny goats.
Intact male goats, (not castrated male goats) are called bucks or buck goats or billy goats.
Castrated male goats are called wethers.
Young goats of both sexes are called kids.
It takes five months from the time a doe is mated to kidding.
It takes three months from kidding to weaning when the young kids are taken from their mothers and fed on grass.
1.0.0 Advantages and disadvantages
of keeping goats
1. Advantages of keeping goats
1.1. Adaptability
Goats can adapt or adjust themselves to different situations.
They can live and gather food from cold windy mountains or from hot dusty
deserts where few plants grow.
They can live quite well on all kinds of Pacific islands.
They do not like to be wet and cold, but if they are given a good dry
house, they can live in these climates.
1.2 Sure-footedness
Goats can walk quite well on land that is far too steep or rocky for
other kinds of farm animals.
This means that they can gather food from places that other farm animals may not visit.
1.3 Browsing
Goats can to eat grass quite well, but they can also eat the leaves of
most kinds of bushes, trees and shrubs.
They can also eat plants like thistles, giant mimosa and briars, which
have sharp thorns or prickles.
Goats have very tough mouths, and even young goats can eat prickly plants
quite easily.
Goats can use food that other animals will not touch.
It is this ability to eat almost any plant that has given goats a bad
name, because if food is scarce, they may strip leaves from bushes
and young trees.
However, if they are carefully managed, this severe damage should not
happen.
Do they think goats might be a threat to the land?
Do they think there would be enough green feed for the goats where you
live?
1.4 Diseases
Goats do not seem to catch many diseases and they do not have many pests.
So they are tough animals that do not cause much trouble in keeping them.
The main trouble is that they may get many worms growing in their intestines,
but this trouble can be stopped by using some worm
medicine for the goats to swallow, such as Nilverm.
A drench is the oral application of drugs to remove adult worms.
1.5 Provide good food
Goats can provide two kinds of food, meat and milk.
Goat milk is very good for children, because it does not contain disease
germs.
The meat is also good and is just like sheep meat.
1.6 Eat weeds
However, do not let them eat poison plants, e.g. milkweed and bracken
fern.
Their milk may have a bad smell if they eat onions, cabbage or parsley.
2. Disadvantages of keeping goats
2.1 Goats need a very large amount of food each day.
They need much more food than a sheep needs, and more food than cows
on a body weight comparison.
This is a problem on small islands.
Also, goats need to find much protein, so they must find legumes or other
food rich in protein.
2.2 Goats will eat almost any kind of green feed.
So if young trees have been planted, they will be eaten by the goats unless they are protected in some way.
Also, goats may strip many leaves from slow growing shrubs.
Unless they are fenced out, they will also eat all kinds of green vegetables
in a garden.
2.3 If goats are not fenced in or kept in such
away that they can be brought back to their house at night, they may escape and live
in the wild state.
Then getting them back may be very difficult, because they can run very
fast over rough ground.
2.0.0 Parts of a goat
See diagram 57.2: Parts of a goat, musk gland
The head
The dark pupil of the eyes is extended sideways.
The mouth contains grinding teeth or molars at the back of both jaws.
At the front of the mouth the sharp incisor teeth are in the lower
jaw only.
At the front of the upper jaw is a hard pad.
The goat grasps leaves between the teeth in the lower jaw and the hard
pad on the upper jaw and tears off leaves by a sharp
movement of its head.
The breathing nostrils are just above the mouth.
On the chin just underneath the mouth is a tuft of hairs called the beard,
but some goats do not have this.
At the back of the lower jaw, some goats have two pieces of skin hanging
down.
These are called tassels or "bells".
Nobody knows why some goats have these bells and it is not known if they
have any use.
Horns are found in some breeds of goats, but other breeds are hornless.
In most breeds, if the males do not to have horns, they may not be a
normal sex, but may be half male and half female.
If the horns are present, then it is important to look at the skin that
lies behind the polls on the back of the head.
In this position is a strip of skin about 1 cm wide, which is the place
where the musk gland is found.
If this gland is working then the skin will be raised a little and folded
and will look thickened and glistening as if it is wet.
This gland makes a bad smelling substance called musk that gives goats
a special smell.
The "buck" goats rub their heads on other goats to put this smell mark
on other goats.
The ears of goats are of special interest, because they are of special
shapes in the different breeds.
The ears vary a great deal in length and also how they are held.
In some breeds the ears are fairly short and are held up.
In others they are held out sideways, but in others they hang right down
on the side of the face.
The body
The body of the goat has a large belly or abdomen, because of the large
amount of food it eats.
At the top of the chest are the withers, which mark the top of the shoulder.
The heart girth is the distance right down and around the chest just
behind the
front legs.
It is important for the chest to be big here so that the animal can breathe
easily when it is climbing hills or running.
The rump is the back part of the body and goes from the hip bones to the
butt of the tail.
In some goats this rump slopes down a lot as you see in diagram A.
The tail of the goat is short and usually has a fringe of long hairs
on it.
The udder of a female goat can be very large in size.
It has only two teats, but these are often of very large size.
So it is easy to milk these goats.
In front of the udder are two large veins, which can be seen running
along the underside of the belly or abdomen.
These are the milk veins and it is good if they are large.
Legs
It is important that the legs of the goat are strong and the animal stands
straight on them.
There should be some strong muscle on the upper part of
each leg, the forearm and the thigh on the back legs.
The bottom of the feet ends in two half hoofs, because goats belong to
a special group of animals that are called "ruminants".
These animals have two
special features:
* They are cloven footed animals with the hoof split into two halves.
* They chew their food twice, once when they first eat it, and then
again when they are lying down after feeding.
Observations
Fully-grown goats in tropical regions are about 25 to 30 kg and live
to 7 to 10 years.
Some goats are called dwarfs, because they are so small.
White goats can be burned by the sun so they need shade.
* Observe the head, the eyes, the nostrils and the beard.
* Open the mouth and see the two kinds of teeth and also the bony part
at the front of the upper jaw.
* Observe the horns, if present.
Look closely for the signs of the musk gland.
* Observe the ears.
* Observe the withers, the hip bones, the rump and the tail.
* Observe the chest, heart girth and the large belly or abdomen.
* Observe the udder, the teats and the milk veins.
* Observe the feet and the hooves.
W hat is the name of a female goat? [Doe.]
What is the name of the scent gland at the base of the horns? [Musk glands.]
What is the name of the grinding teeth at the back of the mouth? Molars.]
What is the name of the bits of skin that hang down under the jaws of some goats? [Tassels or bells.]
3.0.0 Keeping methods
See diagram 57.3: Housing goats
1. Subsistence goat keeping
This is where a man keeps just a few goats for his own family to use.
They may use the goats for meat and milk.
The goats may be allowed to gather their feed over the man's land, or
they may be tethered for feeding in different places.
However, the important thing about this way of keeping goats is that
only a few goats are kept enough for just one family.
2. Extensive goat keeping
Where there is not much rain or where it is too hard to build a fence, or where there may be just a short wet season, the goats may be allowed to feed over a large area of land.
The owner may build some houses for the goats, and if he does, the goats
may return to these houses at night time.
These goats will spend all day looking for food, which may be hard to
find.
3. Intensive goat keeping
In this system all the food the goats need must be brought to them each
day.
It will be important to give them some shrub leaves as well as soft green
feed.
The only reason for keeping goats this way is if you had a lot of lactating
"does" and you could sell the milk in a town or village.
This money would pay for some of the food supplements you may have to
buy for them.
4. Semi-intensive goat keeping
In this system the owner builds houses for the goats and gives them some
special rich food supplements as well, but he also lets the
goats go out each day to gather their own food.
This means the owner has to buy less food supplements.
However, if this is done, the owner must keep control of the goats they
must not be allowed to run away wild.
So it is necessary for the owner to build some kind of fence.
Where a long piece of land goes out into the sea, only a short fence
may be needed across a narrow part of this land to keep the goats
inside.
3.1.0 Care for goats.
Children may have not seen a goat, but you should teach the children about
these animals, because you can be looked after easily.
You can be very friendly and you provide milk and meat.
Goats are unpopular in villages, because you do not eat grass, but bushes
and small trees and so damage food gardens.
Goats can jump over fences, eat washing on the clothes-line, and even
eat things in people's homes.
The best way to keep goats is to have a herd which is locked up at night
and allowed out during the day to find your own food, but you must be watched at all times by a herdsman.
You need one male goat called a buck for every 20 females, called a "doe".
The "doe" should be mated when 11 months old.
The baby goats, called kids, are born after five months, the gestation
period.
Kids are weaned after three months.
Keep goats in a good house, which keeps out the wind and rain, surrounded
by a strong fence two metres high.
Their yard should be dry with no puddles.
The goats will be more healthy if you give them a salt lick.
Goats must be protected from village dogs.
If you only have one goat, it should be tied with a long rope on dry
ground.
Goats are meek, funny animals.
They eat the gardens and the clothes of people.
Visit a goat project or visit someone who keeps a pet goat.
4.1.0 Anglo-Nubian breed
See diagram 57.4: Breeds of goats
The Anglo-Nubian breed is useful for meat, milk and hide production.
They do not have the length of lactation or the quality of milk produced
by Swiss breeds, but the milk has a much higher butterfat
content.
It will breed out of season, so making them useful in tropical countries
with a policy to upgrade local goat stock.
This breed of goats comes partly from Egypt and India and so it stands
heat well.
It is a very big goat and is very easy to recognize, because its ears
are very long and hang down alongside the head.
It may have no horns in either sex, and the nose is rounded.
There are many possible colours, but white and roan are common.
This goat produces milk of good quality, and a yield of about 1 kg of
milk each day.
Although the udder of this goat is not a very good shape, it is held
up higher than in most other breeds and so it is not get caught
on objects near the ground.
The coat is flat and there is a layer of fat just under the skin.
This enables the goat to stand high and low temperatures well.
4.2.0 British Saanen breed
See diagram 57.4: Breeds of goats
Saanen "does" are typically long lactating and high producing dairy goats
with placid temperaments.
These traits contribute to the popularity and success of the breed in
Australian commercial dairies, with the British Saanen the most
common goat breed in Australia.
The British Saanen is a smaller white breed and is the best milk producer
of all goat breeds.
This is a milk breed that grows well in tropical climates, although it
may suffer from sunburn.
When mating goats of this breed, it is important to use horned "bucks"
if available.
If this is not done, the kids may be born as intersexes, half male and
half female.
Such kids are useless and are usually destroyed at birth.
4.3.0 British Alpine breed
The British Alpine is a tall, rangy, highly active breed suited to open
grazing and renowned as a good milk producer with better than
average butterfat and solids-not-fat.
The breed displays good winter milking with an extended lactation period.
The British Alpine is a large black goat with white on the legs and face.
It produces a lot of milk.
This is another milk breed that can live well in the tropical countries.
It is easy to tell, because it is black in colour with white patches on
legs, udder, hindquarters and face.
The udder is large and may hang down low, but a large quantity of milk
is produced.
An average doe may produce 2.9 pounds or 1.3 kg of milk a day.
The British Alpine is a big goat with long legs.
It is able to live well on rough pastures.
4.4.0 Toggenburg breed
See diagram 57.4: Breeds of goats
The Toggenburg goat originated in Obertoggenburg,
Switzerland, where the purity of the breed was strictly regulated.
It is credited with being the oldest known dairy breed of goat and was
imported into Australia around 1950.
The breed has become popular in Australia with both small farm operations
and commercial dairies, because of its excellent milk
production.
This is a small brown and white breed that thrives on rough pastures,
but it is not as suitable for tropical climates as other breeds.
4.5.0 Australian Brown breed
It was developed in Australia over the 1990s and officially recognized
as a breed in 2006.
These goats are of a consistent type, tall and rangy with good dairy
conformation and are known for long lactation and ease of milking.
4.6.0 Australian Melaan breed
The Australian Melaan is a black goat breed developed in Australia and
particularly well suited to the diverse and highly variable local
production conditions.
The breed, recognized in 2000, is considered hardy, disease resistant
and highly productive with an intelligent and placid nature.
4.7.0 Boer Goat breed
The South African Boer goat is a breed developed by the Boers (farmers),
in South Africa, it is larger and more heavily muscled and
faster growing, than most other breeds of goats.
The Boer goat descends from the nomadic goats of South Africa and was
introduced to Australia in the late 1980s and released from
quarantine in 1993 for specialist meat breeding.
The Boer goat is the only goat breed that has been specifically bred
for meat and is largely recognized as a premier meat goat.
They are easily recognized through their white bodies with distinctive
brown heads.
Boer goats are well suited to specialist meat production and for use
in crossbreeding to achieve hybrid vigour and to breed more
versatile animals.
Boer goats have appealing traits in terms of production, fertility, maternal
qualities and ease of management.
Boer goat traits compared to other breeds include: high fertility,
heavier and higher dressing percentage, reaches slaughter weight
more quickly, meat is low in saturated fat and cholesterol.
4.8.0 Rangeland Goat breed
The Rangeland Goat is a composite breed of goat which has become naturalized throughout Australia's range lands and in isolated, less accessible pockets, within higher rainfall areas.
The name "Rangeland Goat" was introduced as a marketing term to replace
goats called "wild" or "feral".
Rangeland Goat traits include: hardy and can thrive in low rainfall zones, maintain high fertility in dry conditions, suitable for commodity goat meat trade and live trade, low maintenance so
do not require shearing and crutching, exhibit hybrid vigour when crossed with other breeds.
4.9.0 Kalahari Red breed
Kalahari red goats come from the Kalahari Desert in South Africa.
The commercial breed in Australia is still close to the natural gene
pool of the desert goats, bringing the benefits from centuries of
natural selection.
The Kalahari red breed has qualities suitable to the Australian terrain,
e.g. colour that acts as a camouflage from predatory eagles and
dingoes, productiveness, hardiness and mothering abilities.
4.10.0 Australian Angora
breed, mohair
Angora goats produce mohair.
It is a very long (120-150 mm), lustrous and resilient luxury fibre which
is blended with other natural or synthetic fibres to give texture
and lustre to the finished fabric.
Angora goats are shorn every six months.
When buying an angora goat, make sure that there is no coloured fibre
present by examining the neck area and the animal's eyelashes.
Coloured fibres make the fleece and their offspring useless for sale.
The Angora goat was named after the region in Turkey from which it originated
and was introduced into Australia from France in the
early 1830s.
The Australian Rangeland Goat is used as a base breeding source.
Pure Angora goats from Europe have not been successful in tropical countries, but Angora goats from South Africa and Texas have been crossed it with the Australian Angora to select a new
type suited to the Australian environment.
4.11.0 Australian Cashmere
breed
The fibre cashmere is produced by Cashmere goats.
Cashmere is recognized one of the world's premium fibres.
It is soft, warm and light, varies in colour from brown to light grey
to white, and its diameter ranges between 11 and 20 micron.
Cashmere goats in Australia have been bred from these wild or Rangeland
Goats to produce the Australian Cashmere goat.
Fleeces from these goats contain coarse guard hair, which has no commercial
value, and a fine downy undercoat called cashmere.
Pure bred Cashmere goats will yield up to 300 g per year.
5.0.0 Planning the goat project
Before planning, a goat project check the local government regulations
about keeping goats for teaching purposes, or commercially,
or as pets.
Some local government councils do not allow keeping certain breeds or
entire males.
Also, get advice from the local agriculture extension officer.
There are different types of school goat project.
For example:
1. Buy a very young kid that has been with its mother for 3 or 4 weeks.
Until they are two weeks old, young kids must have their mothers milk, because this milk has foods in it that make
the kid strong and
keep diseases away.
So you can never have a very young kid unless you buy its mother too.
Also, kids must have some milk until they are three months old.
Female kids need 1 kg of milk each day.
Male kids need 1.5 kg of milk.
You can give kids some cow's milk each day, some milk substitute from
powdered full cream milk or skim milk, but it is not easy to
make up powdered milk properly.
2. Buy a kid that is over 3 months old and is no longer receiving any
milk
3. Buy young adult goats.
For some people it is too much trouble to rear a kid and look after it
properly, so they decide to buy some older goats, perhaps a
male and a female that are one year old.
It is cruel to keep one goat by itself, because goats are family animals,
they like to have some other goats near them.
So it might be best to order one male and one female.
Buy a horned male so that there is less chance of having kids born that
are intersex, both male and female, which cannot breed.
6.0.0 Rearing a kid
This lesson can only be used if a kid is brought to the school.
For the first two weeks the kid must be left with its mother, but after
that it can be
separated from her.
To rear a kid it is necessary that it is given some milk.
1. It can be given some cow's milk.
This milk must be warmed before it is given to the kid.
If the kid was 7 pounds or 3 kg when it was born, then it
should have one pint or 20 fluid ounces of milk each day.
This should be given in 4 or 5 feeds a day.
Each day the kid can be given one more milk, but it must not be given
more than 1.5 litres of milk each day.
2. It is much better if the kid can be given goats' milk instead of cows'
milk, but the milk must be warmed before being fed to the kid.
3. If it is not possible to get real milk the kid can be fed on warmed
artificial milk made from skim milk or from powdered full cream milk.
To this milk must be added a very small amount of vitamin oil (not more
than 1/4 teaspoonful per day).
After four weeks of age, the kid should be given a little of the food
which is chewed twice by a doe.
If there are no goats, then a little of the chewed food of a cow will
do.
This is done so that the microbes of the doe's stomach can be put into
the stomach of the kid.
These microbes can then help the kid to digest leaves and grass.
4. If there is a doe nearby, some of its chewed food can be obtained
as follows.
Keep quiet and wait until you see that the doe has brought some food
up from her stomach into her mouth.
Then use one finger to hook out a little of the food.
Put this into the kid's mouth.
The feeding of a kid is difficult, because if it is not done properly
the kid will get sick and may die.
The best way to feed the milk is to use a bottle and a rubber teat to
put over the mouth of the bottle.
However, the bottle and the teat must first be cleaned.
Do it this way:
8.0.0Planning to buy goats
1. In Australia, the National Goat Health Statement is an agreed declaration form that enables you to provide information on the history of your herd, if you intend to sell or agist goats.
It requires details of diseases and parasites, including Ovine Johne's disease (OJD), Caprine Arthritis Encephalitis (CAE), footrot and lice as well as drenching and vaccination history.
The National Goat Health Statement enables goat vendors to provide assurance about the health status of the goats they are offering for sale.
Buyers can check health statements to ensure that any goats they are planning to purchase will not compromise the health of their own herd.
2. When the goats arrive
If the goats are two small kids, keep quiet so as not to frighten the
kids.
The kids must also be handled gently.
The kids should be fed with milk as soon as possible after arrival.
If the goats are adult, tie the "buck" to a tree before you let students
go near him.
"Bucks" can be quite dangerous to children, so be careful with them.
This is a good opportunity to show the parts of the body in the goat.
Spend a long time looking at the head to see the scent glands, ears,
horns and teeth.
You may decide to buy adult goats and not try to rear kids.
3. Goats are family animals.
They like to have the company of other goats.
However, if enclosing all males or all females, they should be about
the same size.
So it is cruel to keep only one goat.
It is better to buy two goats per enclosure, either two females or a
"buck" and a doe.
4. The first thing to be done is to gather some food for the goats.
It is not a good idea to feed goats only on soft green feeds.
They should also have some tough leaves and twigs from bushes.
5. Goats will also need some clean water to drink.
Clean fresh water must be freely available.
In cooler weather, goats drink as little as 2 litres per day, but in summer,
adults or lactating "does" may drink 10 litres or more.
If water is too brackish (salty), or too hot or cold, goats will drink
less and suffer the consequences.
The "does" may reduce milk production and the "bucks" may develop urinary
calculi.
oats are browsing animals and if given free choice, will consume about
80% woody weeds and shrubbery and 20% pasture.
However, if good grazing is available, they will probably only need this,
plus a mineral lick block available ad lib, and clean fresh water.
6. Goats will also need a warm dry house to sleep in.
The house can be the same design as the one built for kids, but may need
to be a little bigger.
The ground around the house should be dry in fine weather with no puddles.
7. Provide a fence for the goats to keep them near the house until they
have got used to being moved.
This fence must be big enough to include some grass, some shrubs and
some shady trees.
If using mesh fencing, it is recommended that 8/90/30 be used:
* 8 = 8 horizontal wires
* 90 = 90 cm high
* 30 = 30 cm mesh spacing
8. Electric fencing
The least expensive options are as follows:
* Use plain wire 6 strand electric fencing running on either a fence return system, where the wires are arranged as one negative one live alternately from ground to top
* Use a bipolar system where all wires are live and carry either a negative or a positive charge, so that any wire touched will deliver a shock, because the animal becomes the earth.
In a bipolar system, amperage carried in the wires is low, so that it will sting, but will not usually cause any permanent harm.
However, one disadvantage of the bi-polar system is that vegetation touching the fence will earth it out.
9. If you are only keeping a few goats for your own supply then four
(approx. 3m.), farm gates can be used as a small yard.
Join three gates together and leave the fourth unjoined to use as the
gate.
10. If it is desired to build a fence to keep a "buck" inside the fence
must be strong and must be at least two metres high.
There must be no holes low down, because goats can easily get down on their
knees and walk between loose wires low down in a fence.
To keep "does" inside, a fence must be at least 120 cm high.
If you wish to keep a "buck" and a doe, then there should be two yards,
one for the "buck" with a high fence and one for the doe with
a lower fence.
10.0.0 Behaviour of goats
See diagram 57.10: Forcing a goat, A flock queen
inspects a strange plant.
There is also a lot the students can find out just by watching goats.
Goats are family animals, they like to live together in groups.
They do not like being alone.
So it is cruel to keep just one goat by itself.
It will be very unhappy.
Goats are also easily upset by people who rush at them or push them.
They like quietness.
Moving goats from one place to another upsets them.
When they are upset, goats go off their food and do not eat much food,
or make much milk.
As soon as goats are brought together as a group, they form a social
order.
That means they will fight among each other to find out which is the
leader or boss and which come next, right through the group.
The "does" and the "bucks" form different social orders.
If a group of goats go wild and live in the bush, there will be two leaders
in that group:
1. The king "buck" is the leader of the "bucks".
He usually walks along in front of the flock with the flock queen near
him.
He is ready to guard the flock.
He is always ready to fight dogs or other male goats or any animals that
may hurt the group.
2. The other leader is the oldest leader of the "does".
She is the top of the female social order.
She is called the "flock queen", because she always helps to
lead the whole flock of goats to new places for feeding each day.
If she comes to some new plant, she stops suddenly with her front feet
propped stiffly in front of her.
She goes up to the new food and takes a leaf in her mouth.
If not liking it, she spits the leaf out and then tries to scratch of
the plant by stamping on it.
None of the other goats will eat that plant.
However, if she likes this food, she chews it up and eats more leaves.
Then all the other goats will copy her.
They too will eat this food.
However, they will not eat any of this new plant until the flock queen
tells them it is good food.
When an enemy frightens a flock of goats, they scatter.
They do not all run together in one direction as cattle may do.
If the ground is uneven, goats always expect enemies to come from below them.
They feel that there is always safety above them.
So if an animal gives goats a fright, they will usually run straight
up to the highest part of the land.
Goats cannot be driven as other animals can.
If you try to drive them to go in one direction, they will probably scatter.
3. The best way to manage them is to try to be quiet and friendly with
them and try to lead them in the way you want them to go.
Because goats are family animals, they can accept a man as one of them.
This can happen in two ways:
* If a man milks the "does" each day, then he will be taking the place
of a kid and will be accepted by the "does".
* If a man sometimes forces goats to go to a particular place, he will
be accepted, because he is taking the place of the "buck".
If there are several "bucks" in a group or flock, they will fight until
one is found to be the "boss" or "King "buck"" of that group.
This "buck" can be a nuisance, because he may try to chase away people,
and he may attack children.
If this happens, there is only one way of stopping it and that is that
a man must go into the yard and meet the "buck".
He must take the "buck" by the ear and the tail and force them together.
This will force the body of the "buck" to bend round in a half circle.
It may be possible from this position to push the "buck" down onto the
ground and to push his nose into the ground.
This treatment shows the "buck" that the man is his boss, and he will
usually stop his attacks on people.
One thing that "buck" goats do may not be liked by people, but is quite
natural for the "buck" goats to do it.
When "buck" goats come into the mating season, they like to spray themselves
with their own urine.
This makes them smell a lot.
They do it, because the smell attracts the females and makes them come
on heat.
However, this is not liked by people.
All animals have their own way of acting or doing things.
11.1.0 Castration
See diagram 57.11.1: Two methods of castration
In school goat projects, this operation usually requires assistance from
a veterinary surgeon.
When only one male is needed for breeding, excess young male kids are
usually castrated, then called "wethers".
This stops them fighting with other males and they grow more quickly.
Castrate between 4 and 5 weeks of age.
The wethers soon recover from the operation.
There are two ways of doing castration:
1. One way is to use strong rubber rings that are used for castrating
sheep.
The rings are placed high up around the stalk of the scrotum.
This stops blood going down to the testes and they soon die and drop
off.
This only hurts the kid for a short while.
It is probably the best way of castrating kids, because there is no blood
lost.
2. The other way is to get a sharp knife, and some antiseptic fluid,
e.g. "Dettol".
Hold the kid with its back resting on the top of a fence or a gate.
Hold the back legs very firmly.
Cut off the tip of the scrotum or sac.
Then squeeze out the testes one by one.
Use the knife to scrape down across the cords that hold them.
Do not cut straight across the cords, because they bleed more.
After removing both testes, use a clean cloth to put antiseptic solution
on the cut tip of the scrotum.
The kid will bleed for about 3 or 4 minutes, but this will then stop.
11.2.0 Paring the hooves
As a goat grows, the hooves on its feet also grow.
If the goat has some rough rocky ground to walk over, the hooves will
probably be worn away just as fast as they grow out of the foot.
So they do not get too long.
However, if the goat only has very soft grass or ground to walk on, then
the hooves may grow too long.
Unless they are trimmed or pared or cut off shorter, they may grow so
long that it stops the goat walking properly.
To do the paring, catch the goat and lay it on the ground.
Use a sharp knife to cut off the long part of each hoof until it is the
proper length.
Do not try to do this all at once.
It may be necessary to cut the hoof away a little at a time until it is
the right length.
However, be very careful to make the two half hooves the same length.
If you make a mistake and cut off too much, you may cut the growing part
and make it bleed.
If this happens, be sure to put some antiseptic, e.g.
"Dettol", on the foot, and put the goat on some clean straw or grass
in the goat house.
11.3.0 Tethering
Some people like to make sure that a goat cannot run away, so they tie
it up to a tree or a fence post by a length of rope.
Never leave goats tied up like this overnight.
It may be all right to do it for a short time in the day.
Never tie a goat up and then go away and leave it for a long time.
Go out and see it to make sure that it has not become tangled up in the
rope, unable to move or feed, or has been attacked by dogs.
You may need to move the goat from time to time, because goats will not
eat grass that has been soiled by urine or droppings.
Be especially careful to watch the goat if there are dogs nearby.
Dogs can easily worry a goat and bite it, because when it is tethered
by a rope it cannot get away.
11.4.0 Drenching
Newly purchased stock should be quarantined for ten days, drenched for
worms and vaccinated for tetanus, pulpy kidney and
cheesy gland.
Goats are prone to worms and should be drenched when necessary.
A goat with worms inside it, becomes sick and may not want to walk about
or eat food.
You know a goat has too many worms when you can see the worms in the
droppings.
Other worms may be there, but are too small to see them in the droppings.
To kill the worms inside the goat you have to give it some worm medicine.
This is called drenching the goat.
Method of drenching
To do this you need
1. A small bottle with a long neck.
Olive oil bottles or drink bottles may be suitable.
2. A small amount of blue stone (copper (II), sulfate crystals).
Put one teaspoon of this blue chemical into 0.5 litres of water.
Then you can use a little of this for the goat.
Give the goat a little of this solution first.
It closes a tube that might let the worm medicine go into the large first
stomach or rumen.
Here it would get mixed with so much food that it would be weakened and
unable to kill the worms.
However, if you first give some copper (II), sulfate, it closes the opening
into the rumen.
Then the worm medicine goes straight into the proper stomach.
3. The worm medicine that you will give the goat.
If you read on the label of the bottle or tin, you will see how much
of this medicine to give the goat, but it is not very much.
Effective worm medicines include "Nilverm" and "Wormguard".
4. Drenching the goat
Put your left thumb inside the mouth and put the fingers of the left
hand underneath the lower jaw of the goat.
Put the right amount of the drench into a bottle and push the mouth of
the bottle into the right side of the mouth.
Tip up the bottle and let the worm medicine go in slowly, a little at
a time.
If the goat coughs while this is being done, it means that some drench
has gone into the wrong place into the windpipe.
Change the position of the bottle.
5. Rules for deworming
1. Deworm the day after kidding.
2. Deworm the day after buying a new goat
3. Deworm after castration, disbudding, an injury or illness, a stressful
situation, e.g. moving kids away from mothers.
4. Deworm the entire herd at the beginning of Spring and at the beginning
of Autumn, every 10 days X 10 days X 10 days.
11.5.0 Disbudding
See diagram 57.11.5: Disbudding
Some people take off the horns of goats, because this makes them less
dangerous to handle.
If it is to be done, dehorning is best done in male kids before they
are 7 days old, and in female kids before they are 10 days old.
At this time the horns have not grown, but the horn buds are there.
Dehorning of adult animals may only be done by a veterinary surgeon.
Method 1.
Place the 5 day old kid on the floor.
Clip the hair around the horn buds.
They should be just bumps on the head, but no longer than one centimetre.
To check whether the disbudding iron is hot enough, use the tip to burn
a black circle on a piece of wood.
Straddle the kid and hold the head down behind the neck so the chin is
flat on the ground.
Hold Nubian breed ears back as well.
Do one horn bud at a time.
Burn and move the tip of the disbudding iron around the horn bud without moving it off the head.
The hot iron should be left in contact with the skin until the full thickness of the skin has been destroyed.
Count to 6, remove the iron and allow it to reheat.
Allow the iron to reheat before doing the other side.
Some pain relief may be given with an ice cube, or sunburn spray or baby
aspirin.
Method 2.
Use a hot iron with a circular end.
Heat it on a fire and then pushed it down onto the horn bud and hold
it there for a few seconds, until the whole area is burnt on both sides.
The iron can also bring away the yellow musk forming skin.
Do not leave the hot iron on the horn bud too long, because the heat
may injure the brain.
If there is no proper disbudding iron, one can be made by welding a one
inch steel nut onto the end of a rod of steel or iron.
The scab that forms over the place where the iron has burnt out the horn
bud, lifts off after 5 or 6 weeks, not leaving a big scar.
Method 3.
Slightly moisten some caustic potash (potassium hydroxide).
Then spread some of the moistened caustic potash right over the horn
bud, which will later turn into a horn.
This substance burns the horn bud and soon the horn bud is destroyed.
The horn will not grow in that place.
However, caustic potash can sometimes fail and can burn the eye and surrounding
tissues.
11.6.0 Deodorizing
See diagram 57.11.6: Deodorizing a kid
Some goats have very active musk or scent glands at the base of the horns.
The smell made by these glands can often affect the taste of the milk.
Glands are present in both females and males, but are not usually active
in the female.
The male has the habit of rubbing his head on the "does" and leaving
them with his smell.
If the goat has been dehorned, the glands are in the position where they
would be if the horns were still there.
The simplest way to remove these glands is to burn them away with a dehorning
iron or a similar piece of iron.
Apply a hot iron to the area where the musk glands are located.
The iron must not be left on too long, but just long enough to scorch
the gland area to a bone like appearance.
Great care is needed not to burn the area of skin between the horns,
because if this is done, the healing will be very slow.
11.7.0 Weaning
There comes a time when all young goats must be weaned, that is to say,
they must be taken away from their mothers.
It also means that the kids must learn to eat plant foods like leaves
and learn to drink less milk.
However, there are some important things you must know about weaning:
When a kid is taken from its mother, it should still be able to see her.
If this is not done, the kid will make too much noise calling for its
mother.
Goats can be weaned at early ages, but they still need some milk until
they are 3 months old.
At the age of two weeks kids should be given a box containing some clean
soil or am in mineral lick.
If this not done the kid will try to get some iron and copper by eating
some soil outside the house.
This soil may also have some eggs of a bad tape worm, which may make
it sick.
The kid of two weeks of age will also want to eat a little dry plant
food like hay.
So it is a good idea to cut some green grass and leave it in the sun
until it is dry.
Then put it into the kid's house on the floor.
It is important to have some practice in drenching, because this is usually
needed for all goats.
12.1.0 Food needs of kids
Diagram 57.12: Stomachs of a day old kid and
3 months old kid fed on fibre
Until they are 3 months of age, kids must be given some milk each day.
They should have proper milk at first, but after they are four
weeks of age milk made from powdered milk can be used instead of proper
milk.
You do not have to worry about what are the food needs of kids, because
milk is a perfect food and contains everything the kid needs.
This is especially true of proper milk from a cow or a doe.
A kid needs about 4 pints of milk (or 2 litres), a day in four feeds.
"buck" kids may need an additional pint or half a litre per day.
If you keep feeding a kid on milk only, the milk will go into its 4th
or proper stomach.
However, the first stomach or rumen, which can digest leaves, will not
grow properly.
The rumen is the 1st stomach of a ruminant, goat, cow or sheep.
The ruminal bacteria living in the rumen break down cellulose in the feed to be digested.
In order to make the rumen grow properly the kid must be given some fibre
us foods like tough leaves and dry grass or hay.
The kid must also be given some of the chewed food that a doe has brought
up from her rumen for chewing.
This food will put into the rumen of the kid the microbes that it will
need when the rumen starts to digest foods.
Feed needs of a 25 to 30 kg tropical goat per day
Starch equivalent 0.4 kg
Protein equivalent 0.02 kg
Dry matter capacity 1.1 kg
However, goats survive well on ordinary grasses, but must have clean water.
12.2.0 Food needs of adult
goats
They need four kinds of foods: energy foods, protein foods, minerals,
vitamins
1. Energy foods
Goats need energy foods for maintenance and production.
* Maintenance feeding
Goats need 9 pound of starch equivalent for every 100 pounds of body
weight.
* Production feeding
Goats need 1.4 kg of starch equivalent for every gallon of milk produced.
A starch equivalent is the amount of a food equal to the energy contained
in one pound of pure starch.
So an average goat might need about 1.8 kg of starch equivalent per day.
Starch equivalents of some common foods (S.E.)
wheat grain 72
young green grass 70
fully grown grass 40
old dry plants 10
So the energy in 70 kg of starch equals the energy in 100 kg of green
grass.
So the energy in 1 kg of starch equals the energy in 70 kg = 100 / 70
= 1.4 kg of green grass.
So a goat needing 4 kg of starch equivalent each day can get it by eating
1.4 X 4 = 5.6 kg of dry matter in green grass.
However, you have to multiply this by 5 or 6, because of the water in green
grass.
So this goat needs 5.6 x 5 = 28.0 kg of green grass each day.
It would also need 50.0 kg of fully grown grass each day.
2. Protein foods
Goats need some protein for maintenance and some protein for producing
milk.
For maintenance they need one part of protein to every 10 parts of starch
equivalents of energy food.
For producing milk they need half a pound of
protein for every gallon of milk they make.
Most legumes and some weeds contain about 20% protein, so it would not
be hard for a goat to get
the amount of protein it needs each day.
3. Minerals in food
See diagram 57.13: Salt feed
Goats have a high need for minerals, especially the following:
Salt
Goats need a lot of salt.
They may get enough of this if they live near the sea and eat leaves
that have sea spray blown onto them.
If goats do not
get enough salt they can be given salt licks or boxes that contain solid
salt.
Calcium and Phosphorus
Calcium and phosphorus are both needed by goats for making bone and for
forming milk.
In most green leaves there is enough calcium to balance the phosphorus,
but there may be a shortage of phosphorus in the soils.
It may be necessary to put some superphosphate on the local soils or put
a little bone meal into the feed for the goats.
Sometimes there is not enough cobalt in the local soils.
If this is so, stir one ounce of cobalt sulfate into half a pint of water
and use this to wet 3 kg of salt.
let this dry and then let goats lick it.
4. Vitamins in food
These are substances needed in small amounts by all animals.
Vitamin A is needed for health, but it is contained in green leaves.
Also goats
can store Vitamin A in their livers.
Goats usually get enough Vitamin A.
The B vitamins are also needed, but these are made for the goat by the
microbes living in its intestine.
Other vitamins are not usually needed by goats.
13.0.0 Breeding goats
Only one "buck" is needed for 25-50 "does".
The "buck" may be difficult to manage, have a strong smell, and may require expensive fencing
So some small goat projects do not keep their own "buck", but pay to use a "buck" from a larger goat project or an agriculture extension officer.
Male goats, the "buck", may be ready to mate when they are only 45 months
old.
The "does" are able to mate a little later, between 41/2 and 6 months
of age.
However, it is very important not to let the "does" mate until they are
9-10 months old.
At this age they have grown a big enough body.
If you want to stop the "does" from mating too soon, you must keep the
"buck" away from them.
When is a doe ready to be taken from the herd to the enclosure of the
"buck"?
A doe will not mate at any time.
She only mates when she is in "heat", estrus.
It is very easy to tell when the doe wants to mate.
She wags her tail a lot and calls out.
Also there is a water discharge from her birth canal.
The period of heat lasts 13 days, but many "does" have another heat 78
days later.
However, the usual cycle is periods of heat 21 days apart.
It is best to mate the doe towards the end of her heat period, because
this is when the egg comes down.
To ensure pregnancy use 2 to 4 breedings.
The average gestation period is 155 days.
The first heat (oestrus), after birth of young is 1 to 3 months, then
the 21 days cycle for 1 to 3 days.
The lactation period varies according to living conditions.
Multiple births are less common in goats used in tropical areas compared
to European breeds.
13.1 Choosing mates
It is best to mate a good doe to a good "buck" goat (male goat).
It is very wise to use only "buck" goats that have horns.
However, it may not be possible to get a "buck" goat with horns in the
Anglo-Nubian breed.
Then there will be few intersex kids born that are no use and have to
be destroyed at birth.
Gestation is the length of time between mating and when the kid is born.
In goats this period is 146 days near enough to 5 months.
13.2 Kidding
The "does" that have been mated and are coming close to kidding must
be given good food.
They need some food rich in protein, such as legumes, and they also need
a teaspoon of bone meal every day.
Then the kids will be strong and the doe will have a lot of milk for
them.
As soon as the kids are born some of them may have to be destroyed.
If the goats are being used to produce milk, then the male kids may not
be needed and they may be destroyed at birth.
In goats twins are common.
If twins are born, it is important to look at them closely, especially
the females.
If any of these are not proper males or proper females, but are a mixture
of these two, then they should be destroyed, because they
cannot breed.
Most kids weigh about 7 pounds or nearly 3 kilos when they are born.
First life strong and healthy.
It keeps disease away from them.
If the kid is very weak when it is born, the teacher may be able to hold
it up to its mother and help it to have some colostrum.
14.1.0 Mastitis
This is a very bad disease and may infect any goat that is in milk.
It is a disease that attacks the milk making glands in the udder.
The signs of the disease are that the udder is swollen, hard, red and
sore and the goat gets a high temperature.
One sign may be that the milk contains small pieces of a semisolid substance.
This is pus coming from the swollen sore part inside the udder.
Sometimes part of the udder may go black and become dead.
If this happens the goat may die quickly within 24 hours.
Another sign is that the goat may lie down and cry out.
Mastitis must be treated quickly or you will lose the goat.
These are treatments: 1. Keep the goat warm and give it 8 sulfamide tablets to swallow.
2. Give the goat large doses of Ampicillin or tetracycline.
You will need an agriculture extension officer or a veterinary surgeon to help you do this.
14.2.0 Bloat
Diagram 57.14: Where to cut to treat bloat
This is a disease that can happen suddenly to a goat if it eats a lot
of soft wet grass and herbs.
It is caused by millions of bubbles in the first stomach that cannot
burst and form gas to be belched out.
The whole rumen swells up and may kill the goat.
Treatment is to give the goat half a pint of linseed oil.
If the bloat is very bad, you may need to use a knife to make a cut in
the left side of the abdomen to let out the gas.
14.3.0 Parasitic worms
They are probably the commonest diseases in goats.
Goats may be infected with the following parasites:
* Nasal bots that live in the nose
* Large and small lung worms that live in the lungs
* Liver fluke in the liver
* Barber's pole worm that lives in the fourth stomach
* Black scour worm that lives in the small intestines
* Nodule worm that lives in the large intestine.
The commonest treatment for most worms is to give the goat a drench with
"Nilverm", "Wormguard" or some other worm medicine.
Ask an agriculture extension officer which medicine to use.
Give the goat a little bluestone, copper sulfate solution, before drenching.
14.4.0 Pregnancy toxaemia
This may be called "twin kid disease".
It only affects "does" that are carrying a big kid or twin kids.
It only happens if the doe is not getting enough good food and enough
exercise.
This makes a big strain on the doe and her body may use up some of the
fat to make enough food for the kids.
However, the fats may also be turned into some poisonous substances that
make the doe sick.
The pregnant doe becomes sick 4 weeks before they are due to give birth.
Treat the doe with exercise, a diet of shrubs and legume plants, Vitamin
A and Vitamin D supplements, and a drenching with glycerine.
14.5.0 Foot rot
Some goats get a bad germ coming into the soft part of their feet.
It rots this soft part, makes a bad smell, and makes the goat very lame.
Use a knife to cut away the loose horn on the hoof.
Soak the goat's foot in antiseptic solution.
If a goat gets this disease she will probably spread the germs over the
grass where she has been walking.
So you must watch other goats carefully to see if they get sore feet.
14.6.0 Enterotoxaemia, Pulpy-kidney
disease, Overeating disease
Goats can get sick, because they have eaten too much of one kind of food.
There are some microbes that always live in the intestine, but they do
not grow too fast and cause trouble, because the food passes
down the intestine quickly.
However, sometimes if a goat eats too much of a soft green food, the
food may not pass quickly enough along the intestine.
Then these microbes grow very quickly and make a poison.
The goat will stagger about and lose control of its movements.
It will lie down and struggle, but first it gets diarrhoea and makes
lots of runny manure.
The goat will die unless it is treated.
Treatment is to inject pulpy-kidney serum.
Kids can be protected from this disease if they are injected with a pulpy-kidney
vaccine when they are young.
Urinary calculi are kidney stones.
14.7.0 Milk fever
This disease sometimes affects goats that are close to kidding, or have
just kidded.
The goats that are most affected are usually ones that have a lot of milk
in the udder.
Affected goats lie down and gasp for breath.
The best treatment is to give the goat an injection of calcium borogluconate into a vein.
An agriculture extension officer may have some of this substance you could
use.
15.0.0 Milking goats
See diagram 57.15: Milking platform for goats
When the udder starts to enlarge during pregnancy start milking and keep
milking each day until two months before the birth, dry off.
Resume milking when the kid is 6 weeks old.
After a doe has given birth to a kid or twins, the young goats must be
left with the mother for two or three weeks.
The very first milk or colostrum is especially important for the kids.
After this time the kids may be taken away from the mother and reared
on milk or milk substitute given to them from a bottle.
Then the mother may be milked and the milk used as food in the home or
sold.
Because goats are so close to the ground, a special milking platform
must be made for them.
This place must have some bails at the front so that the goats head can
be kept still.
It is a good idea to have a small tray in front of the head bails so that
the goat can eat while she is being milked.
This helps to make her quiet.
It is usually best to milk the goat from the right hand side.
A clean wet cloth should be used to wash the udder.
Mud and dust must be removed before milking.
Also rubbing the udder for 30 seconds or a minute is good, because it causes
the goat to let her milk come down into the udder.
The milking should be done as quickly as possible.
It is best to milk "does" at exactly the same times each day.
Milking twice a day is better than once.
How to Keep Milk Fresh
Do not milk into a plastic container and do not keep milk in a plastic
container, because the milk will have a "goaty" taste.
16.0.0 Post-mortem, digestive
organs
See diagram 57.16.1 Killing a goat and hanging it up for post-mortem
See diagram 57.16.2: Digestive system of the goat
1. Killing a goat
If a goat has been grown for meat, look at its organs after it has
been killed.
The best way to kill the goat is to push it onto its side and then kneel
on its side.
Then a long sharp knife is used to cut the throat and let all the blood
drain out of the body.
The head must be bent backwards before the throat is cut.
After killing the goat may be hung up by the back legs and skinned.
Then it may be possible to dry the skin in the sun and sell it later.
In taking out the digestive organs, cut a large hole in the abdomen and
pull out all the organs onto the ground.
Find the food tube that leads through the chest into the first stomach,
tie a piece of string around it and then cut it off.
Also tie a bit of string around the last part of the intestine and cut
it off too.
Lift all the digestive organs onto a clean grassy place and look at these
parts:
2. Rumen
The rumen is the very large "first stomach".
When the goat eats some leaves, they first chewed to a rounded lump,
a bolus.
The bolus is swallowed down into the rumen where bacterial fermentation
occurs and some nutrients are absorbed.
Later, the goat will regurgitate some food from the rumen and chew it
again as the cud.
This process is called rumination.
When the food is chewed the second time, it is in very small pieces.
Also it is mixed with a lot of saliva from the mouth, so it is very runny.
Cut open the rumen and tip out the contents.
Find some food in big pieces not yet chewed, and some of the food that
has been chewed a second time.
The goat has a large rumen where it can store bulky plant material that
can be attacked by the microbes.
3. Reticulum
The "second stomach", the reticulum, is smaller than the rumen and
its lining has a honey comb appearance.
Here foreign objects swallowed during feeding are separated from the
food.
4. Omasum
The "third stomach", the omasum, called the Bible or book, has a lining
folded into pages for removal of water and some fatty
acids.
It is quite small.
When it is cut open it can be seen that it contains many flat leaves.
Here the food is fairly dry, and not wet and runny like the food in the
rumen.
5. Abomasum
The "fourth stomach", the abomasum or "true stomach" is similar to
the stomachs of non-herbivores, e.g.
cat, dog and human.
It contains glands in the walls that secrete hydrochloric acid as gastric
juice that makes the food wet and "runny" again, kills and
digest bacteria, and digests food by acid hydrolysis.
6. Duodenum
The food remaining in the abomasum passes through a thickened valve
into the duodenum.
The duodenum is a small sized tube about 25 cm long.
When the liquid food goes through it, the food receives digestive juices
from two organs:
* The pink pancreas puts some strong digestive juices into the food.
* The liver makes bile, which is stored in the green gall bladder and
then put into the food as it goes through the duodenum.
7. Small intestine
The food next goes into a very long tube called
the small intestine.
The digestive juices soften the food and digest it.
Then the food can go through the walls of the small intestine and into
the blood.
Then the food can be taken all around the body and given to all the parts
of the body.
The caecum is a large bag at the end of the small intestine.
Some of the food which has not been digested goes into this bag.
Here there are many millions of microbes that digest a little more of
the solid food.
8. Large intestine
The large intestine consists of several different parts.
Here water is taken out of the food until it becomes semisolid.
This is no longer useful to the animal and is made into little lumps
called faeces or the manure.
It then passes out of the anus.
17.0.0 Reproductive organs
See diagram 57.17: Male and female reproductive
organs
You can see organs after you remove the digestive organs.
1. Male organs
The most important of the male organs are the testes, which are found
in a sac called the scrotum outside the body.
Open the scrotum and notice these things about the testis:
* It is supplied with blood by a very twisted artery, which lies in the stalk of the testis.
As blood comes the long way down this artery it loses heat and gets cooler.
The testis needs cool blood to grow properly.
* If a cut is made across the testis it can be seen that it contains separate divisions.
The male cells or sperms are made in these divisions.
* The sperms made in the testis pass into a long sperm tube, and the
top end of this tube lies over the top end of the testis.
It goes down the side, turns and then passes up in the stalk and takes
the sperms into the body.
The sperm tubes join together in the body and join with the water tube
near the bladder.
However, the sperms go through a gland that add a fluid to allow the
sperms to swim.
Then when they are needed the sperms go down along the water tube (or
urethra), through the penis and then into the female.
2. Female organs
The most important of the female organs are the two small ovaries.
The eggs are made in these ovaries.
When the eggs are made by the ovaries, they are set free in the abdomen.
They find their way to the openings in the end of two long twisted tubes.
These tubes lead down on each side to a strong muscular organ called
the uterus.
This is where the young animals are made.
At the end of the uterus is a very narrow hole that leads out into the
vagina or birth canal.
At mating, sperms from the male are placed in the upper end of the vagina.
The muscles in the walls of the female organs take the male fluid and
the sperms up through the uterus and into the tubes at the sides
of the uterus.
Here the sperms meet the egg or eggs.
When a sperm has joined to an egg and fertilized it, this egg moves down
into the uterus.
It sinks into the wall of the uterus and begins to turn into a kid.
19.0.0 Goat meat
All breeds of goats and their crosses produce potentially saleable goat
meat.
The main breeds of goat that are used for meat production in Australia
are the Rangeland Goat breed and Boer Goat breed.
Other meat goats include the Kalahari Red and Spanish breeds.
Goat meat is the most widely eaten in the world and has no cultural or religious taboos and is a healthy addition to the diet, because of its low cholesterol content.
Cholesterol content of carcasses
Goats 5 - 39 mg/ 100 g of carcass weight
Sheep 52 - 77 mg/ 100 g of carcass weight
Cattle 42 - 7 8 mg/ 100 g of carcass weight
Pig 66 - 98 mg/ 100 g of carcass weight
A carcass is the body after slaughter, organ removal and de-hairing.
A carcass may be sold can be skin on or skin off.
Capretto is the meat from kids 6 months or younger.
Preface
Before teaching this project, discuss the content of the lessons with an agriculture extension officer and get advice on goats.
method of obtaining goats, site for a goat project, design of buildings, control of pests and diseases, medicines, feed supplements.
Use only the procedures, medicines and insecticides recommended by the local agriculture extension office.