Theory question 105
Animal Health(a) Complete the table below on diseases of farm animals.
Symptoms: constant cough and production of stringy sputum with blood or pus, in pigs — Disease (i) — Prevention and control (ii), (iii)
Symptoms (iv) — Disease: Ringworm — Prevention and control (v), (vi)
Symptoms: blood-stained diarrhoea; pale comb in poultry — Disease (vii) — Prevention and control (viii), (ix)
(b) State two functions each of the: (i) queen bee; (ii) worker bee, in a bee colony.
(c) Give five reasons why a compost pit should be covered during composting.
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(a)(i) Tuberculosis. (ii), (iii) Any two: isolate/slaughter infected animals; test herds regularly (tuberculin test); good ventilation and hygiene; disinfect pens; avoid overcrowding.
(iv) Circular, scaly, hairless patches of skin, with itching/crusts.
(v), (vi) Any two: isolate infected animals; apply antifungal ointment/iodine; disinfect pens and equipment; good hygiene.
(vii) Coccidiosis. (viii), (ix) Any two: coccidiostats in feed or water; keep litter dry and change it regularly; clean feeders and drinkers; avoid overcrowding.
(b)(i) Queen: lays eggs; produces pheromones that hold the colony together and control workers.
(ii) Worker (any two): collects nectar and pollen; makes honey and wax; builds comb; feeds larvae and queen; guards the hive; cleans and cools the hive.
(c) Any five: keeps in heat to speed decomposition; prevents rain from leaching nutrients; prevents drying out; keeps away flies, rodents and animals; reduces bad smell; prevents loss of nitrogen as ammonia; keeps material from being blown away.
Name the disease for each set of symptoms.