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Tuesday 27 September 2011

HOW TO START GRASS CUTTER FARMING BUSINESS

ORIGIN AND PHYSICAL FEATURES
The grass cutter belongs to the order Rodent and family Thryonomidae which contains only genus Thryonomys. Dorst and Dandelete (1979) recognized only two species which they describe as greater grasscutter.
Thryonomys swinderianus Temminck and the lesser grass cutter Thryonomys
gregorianus Temminck. This rodent is widely known through Africa south of Sahara and it is commonly referred as the grass cutter, cane-rat or Cutting grass.
They are heavily built, thick set with animals with rounded muzzle, small round ears, short tails and harsh bristly fur. They have a peculiar bristle tail which readily fractures near the base if seized, much like the easily atomized tail of the lizard, a phenomenon that is of tremendous protective value. The coarse bristly coat has no under-fur, though under magnification
some sparsely scattered extremely fine straight under-fur are visible.The overall appearance is usually dark brown, speckled with yellow or grey above butty white below. The chin and throat appear white. The head is a bit small for the size of the body. The small circular ear is covered strong and well padded and are armed with powerful straight claws. There are five digits on the fore feet and four on the hind feet. Females have three pairs of mammary glands on the belly, while the male testes are not visible externally like other rodents. The total body length (head to end tail) ranged from 35 to 60cm and its tail length ranges from 7 cm to 25cm. Grass cutter grows to a considerable weight. The mature male sometimes reach more than 9kg while females can attain between 5-7kg body weight. Its growth rate is less than that of rabbit of an improved breed and more than that of the local rabbit in a tropical environment.
The animal has many predators including leopards, mongoose and python, in addition to man.

MEAT QUALITIES AND USES
The meat qualities of the grass cutter compare favorably with those of domesticated livestock species. Mature live weight ranges from 5 to 8kg. It has an average dressing percentage of 65%. However with the consumption of the head an entrails this can reach 80%.
The nutritional value of grass cutter meat is as good as those from domestic animals. Beef, Lamb and pork also contain higher fat percentage than meat from the grass cutter.In fact grass cutter meat is nutritionally superior to some domestic meat because of its high protein to fat ratio and higher mineral contents. The meat quality is also leaner and non-cholestrogenic.
The meat is very tasty when compared to both domestic and familiar game species. The grass cutter also play an important role in traditional African medicine for preparation of concoctions for fertility etc. In Ghana, the hair of the grass cutter is used to season food just as much as its stomach and intestinal contents. Also, the pancreas of the grass cutter contains a high concentration of insulin which is used in local preparation for the treatment of diabetes.

SOCIO-ECONOMIC IMPORTANCE:
In Ghana it has been ascertained that grass cutter contributes to both local and export earnings. About 73 tonnes of animals are sold in a year and recent surveys show that is is the Grass cutter that dominates the bush meat trade.
Most of this quantity is traded locally as fresh or smoked form. Smoked grass cutter is exported to US and Europe. Grass cutter can be reared with minimal capital outlay as inputs required
are very low. Feed requirements for grass cutter in captivity are low and it does not compete with man for feedstuffs. It can therefore serve as a considerable income earner for the small scale Peri-urban or rural livestock producer. A farmer can also integrate grass cutter rearing with other livestock farming such as pigs, rabbits, sheep, ducks and poultry.

GRASS CUTTER HOUSING:
Grass cutter housing comprised of a stable and cages/pens. stable is the main building which houses the cages/pens. It is a normal building constructed in such a way to allow enough light and ventilation (air).
The type of material for its construction depends on the capital available to the farmer/breeder. cement block, wood, mud, brick, bamboo etc are some of materials for construction grass cutter house (stable).

Basically there are two rearing methods:
1.Rearing on the floor (floor hutch)
2.Rearing above the floor. (in meshed cages).

Floor hutch is the of rearing cage constructed with either cement block, brick or mud on the floor. Meshed cage on the other hand is the type of rearing cage made from combination of wood and wired-mesh.
Both of them however comprised of two compartments which permit easy movement of animal.
They can also be made into two three tiers (layers) system in order to optimize the space.

REPRODUCTION AND BREEDING.
A male and female grass cutters attains their sexual maturity at 5 and 7 months respectively. A male grass cutter can be paired with 3-5 females. There are two methods of mating -permanent and controlled mating methods. The gestation period is 5 months, meaning that with good
management, the animal an litter twice in a year.
The average litter size is always four. They young ones can be weaned in about 4-6 weeks, after a resting period of about 10 days mother can be paired with the male again.

HANDLING.
Grass cutter can be handled either by tails or by the limb. For easy handling, wire mesh cage can be used to move animal from one place to other.

FEEDS AND FEEDING OF GRASS CUTTER COLONIES.
Whatever be the choice of grass cutter farming embarked upon by farmer (breeding or fattening), provision of quality and adequate nutrition is essential to the success of each grass cutter rearing. Balanced feeding that takes into consideration nutritional requirements and regularity of feeding are essential factors responsible for the animals' good growth, health and
reproduction.

FEED INGREDIENTS

1)FORAGE
Grass cutters normally prefer grass with succulent stalk and such quality can be found in the following wild or cultivated grasses among others.
.Elephant grass (pennisetum purpureum)
.Sugar cane (Saccharum spp)
.Guinea grass (Panicum maximum)
.Giant star grass(Andropogon gayanus)
.Maize stem (zea mays)
.Rice stalks (Oryza spp.)

ii)FOOD CROP CULTIVATED/PRODUCTS
.Rice
.Maize
.Guinea Corn
.Millet
.Cassava

NUTRIENTS
Balanced feed can be found in a proportional mixture of the following feed
ingredients that are used in preparing the supplementary feed. Examples of
feed ingredients include:
.Maize/millet------------------ cassava
.Brewers dried grain (BDG)-----Leucaena leucocephala
.Corn bran/wheat offal---------Oyster/snail shell
.Palm kernel cake (PKC)--------Bone meal
.Soyabean cake (SBC)-----------Salt
.Groundnut cake(GNC)-----------Vitamin -mineral premix

DISEASE MANAGEMENT.
As said earlier, good hygiene practice reduces the risk of disease outbreak in grass cutters rearing. The most important disease in grass cutter rearing include the following:
1.ENTEROTOXAEMIA: This is caused by a bacterium clostridium perfringens. The organism produces toxins which are absorbed into the circulatory system of the grass cutters thereby causing moralities.
The most obvious sign seen is the paralysis/ pedaling of the hind legs.
Other signs are seen during post mortern. Vaccine against this condition is available. Antibiotics (Ciprofloxacin, Enrofloxacin) are used in the treatment. It is useful to sprinkle some perphosphate on pen floor bi-monthly to break the development circle of clostridia orgamisms.
2.STAPHYLOCOCCAEMIA:-This is caused by a bacterium, staphylococcus Aurelius.
Most of the signs of this disease are seen at post mortem but discharges from the nostrils and vagina could be seen. Antibiotics are also employed in its treatment.
3.COCCIDIOSIS:This is caused by organism of the Eimeria family. Symptoms of the disease include diarrhea, prostration e.t.c Drugs of the Amprolium family are used in its treatment.
4.WORM INFECTION:-This is caused by worms and can be gotten from the cane grass being fed to the grass cutter. This is why the cane grass must be put in the sum before being fed to the grass cutters in order for the larvae of the worms to destroyed. Regular deworming should be carried out.
5. ECTOPARASTES: e.g ticks. These could be introduced into the pens through inadequately dried forage. Administration of Ivomec is used to control ticks. Chemical bath/dipping of the grass cutters could also be useful.