(a) Importance of Livestock: - Used in compounding feed for animals.
- Provision of food for humans.
- Source of income.
- Source of power/draught/traction.
- Means of transportation.
- Provision of raw materials/organic manure/bio-fuel.
- Used as bride price/dowry/gift.
- Game and sports.
- For educational research.
- As pets.
- Source of employment.
- Source of foreign exchange.
- Sign of wealth.
(b)(i) Organs associated with the digestive system in rabbits: - Gall bladder/bile duct.
- Liver.Mouth/teeth/tongue/salivary gland.
- Oesophagus/gullet throat/gut.
- Stomach
- Small intestine/duodenum/jejunum/ileum.
- Caecum
- Anus/rectum
- Large intestine/colon.
(ii) Function of the alimentary canal in livestock: - Ingestion.
- Absorption.
- Excretion egestion
- Digestion.
- Assimilation.
(c)(i) Functions of the liver: - Secretion of bile.
- Storage of glucose as glycogen.
- Regulation of body temperature.
- Detoxification of materials.
- Fat metabolism
- Regulation of blood sugar.
- Storage of minerals and vitamins.
- Deamination
(ii) Parasites in the liver:
- Liver fluke.
- Roundworm.
(d) Differences between the digestive systems of a goat and rabbit Goat
Goat | Rabbit |
- Has four-chambered stomach- Complete defaecation- Harbours microbes in the rumen- Provides fatty acids in the rumen- Synthesizes vitamin B-complex in the rumen. | - Possesses one stomach- Practices coprophagy/incomplete defaecation- Harbours microbes in the caecum- Digestion further occurs in the caècum- Vitamin B-complex is synthesized in the caecum |