(a) Define the term digestion in farm animals. (b) in a tabular form, give four differences between the digestive systems of a chicken and a goat (c) List f...
Question 1 Report
(a) Define the term digestion in farm animals.
(b) in a tabular form, give four differences between the digestive systems of a chicken and a goat
(c) List five methods of improving rangeland.
(d) Name the end product of digestion of each of the following nutrients: (i) carbohydrate (ii) protein (iii) fat and oil.
(e) State four function:, of proteins in farm animals (t) Mention two digestive enzymes found in the small intestines of a pig.
Answer Details
(a) Definition of digestion
Digestion is the process by which large, complex, insoluble food substances are broken down (mechanically and chemically by enzymes) into simple, soluble and absorbable forms in the alimentary canal of the animal.
(b) Four differences between the digestive systems of a chicken and a goat
| Chicken | Goat |
|---|---|
| Has a crop for storing food | Has no crop |
| Has a gizzard for grinding food | Has no gizzard; chews the cud |
| Has no teeth | Has teeth |
| Monogastric (single stomach) with a cloaca | Ruminant (four-chambered stomach) with an anus |
(c) Five methods of improving rangeland
- Controlled/rotational grazing.
- Reseeding with improved forage species.
- Application of fertilizer or manure.
- Weed control.
- Irrigation and controlled burning.
(d) End product of digestion of each nutrient
- (i) Carbohydrate: glucose (simple sugars).
- (ii) Protein: amino acids.
- (iii) Fat and oil: fatty acids and glycerol.
(e) Four functions of proteins in farm animals
- Growth and building of body tissues.
- Repair of worn-out tissues.
- Formation of enzymes and hormones.
- Production of antibodies for immunity (and of milk and eggs).
(f) Two digestive enzymes found in the small intestine of a pig
- Trypsin
- Lipase (also maltase and pancreatic amylase)
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