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(a) (i) Define the term culling in poultry production. [2 marks] (ii) Mention three ...

(a) (i) Define the term culling in poultry production. [2 marks]
(ii) Mention three benefits derived from culling [3 marks]
(b) State four ways of preventing diseases in a sheep flock. [4 marks]
(c) Discuss the practice of paddocking as a way of improving rangeland. [4 marks]
(d) State three fishery regulations. [3 marks]
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    Correct Answer: Option n
    Explanation:
    (a)(i) Definition of culling in poultry production: Culling is the removal of diseased or poorly performing or destructive birds from a flock.
    (ii) Benefits derived from culling:
    -The incidence and spread of poultry diseases is minimized.
    -The incidence and spread of poultry pests is minimized.
    -The extra cost of feeding unproductive birds is eliminated.
    -A larger floor space is available for the rest of the birds.
    -Egg pecking is minimized.
    -Cannibalism is minimized.
    -Hen-day production percentage is increased.
    (b) Ways of preventing diseases in a sheep flock
    -The house should be cleaned and washed at intervals.
    - The bedding materials including the feaces and urine should be removed at intervals.
    -The sick animals should be culled.
    -Sick animals should be separated and treated.
    -There must be regular dipping of the animals against ecto-parasites
    -Sheep should be dewormed at intervals with appropriate antihelmintics.
    -The feeding trough and water trough should be properly cleaned.
    - Sheep should be vaccinated against common diseases/use of prophylactic drugs.
    - All animals being introduced should be quarantined.
    -Foot baths should be provided.
    -Bury dead animals.
    -Feed animals with balanced diet.
    (c) Paddocking as a way of improving rangeland
    - Entails partitioning of rangedland with fences into small plots.
    -Animals graze in each partition/paddock by rotation.
    -Paddocking allows regeneration of forage crops. It prevents build-up of pests.
    -It prevents selective grazing of grasses and legumes.
    -It prevents build-up of diseases.
    (d) Fishery regulations
    - Prohibition of dumping of toxic materials/industrial wastes in fishing areas or water.
    - Prohibition of the use of chemicals in fishing.
    - Certification that fishes to be sold to the public safe for human consumption.
    - Forbids the killing of endangered aquatic animals.
    - Protection of territorial waters of various nations.
    - Mesh size regulation enforcement to protect immature fishes.
    - Catch quota regulation which limit the quantity a fisherman can harvest.
    -Prohibition of the use of explosives,
    -Enforcement of close season regulation
    - Electro-fishing is outlawed except for research purposes

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