Agricultural Science
WAEC 2016
Study specimens N (BONE), 0 (EGG), P (ROUNDWORM) and Q (TICK) carefully and answer the following questions.
(a) Name three industries that use each of specimens N and O
(b) State five effects of specimen P on the host. (5 marks ]
(c) State four ways of controlling specimen Q on the farm. [4 marks)
Explanation
(a) Industries that use specimens N (Bone) and o (Egg);
Specimen N (Bone)
- Livestock/animal feed-mill
- Interior decoration industry
- Fertilizer industries
- Adhesive making industry
- Pharmaceutical industry- vaccines and hormones
- Ceramic industry
- Shoemaking industry
Specimen O (Egg);
- Confectionery/food industry
- Pharmaceutical industry
- Cosmetic industry
- Feed mill
- Hatchery industry
- Meat processing industry as anti-oxidant
(b) Effects of specimen P (Roundworm) on the host
- Internal haemorrhage/anaemia
- Loss of weight/emaciation
- Loss of appetite
- Constipation/digestive problems in the body
- Weakness
- Reduction in livestock productivity
- May cause death
- Damage to the internal organ during migration of young ones
(c) Ways of controlling specimen Q (Tick) on the farm
- Dipping the animal in acaricide solution
- Spraying the animal with acaricides
- Rotational grazing/ paddocking
- Burning of infested pasture
- Quarantining new stock before being mixed with the existing stock
- Good sanitation practices
- Hand-picking and destroying the ticks
- Use of predators e.g. cattle egret
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