Theory question 105
Animal Diseases(a) Explain each of the following terms as used in livestock production: (i) quarantine; (ii) immunity; (iii) zoonotic disease. (b) State four ways in which liver fluke is of economic importance in livestock production. (c) State three control measures of lice in farm animals. (d) (i) Name three members of the bee colony. (ii) List four equipment used in bee keeping.
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(a)(i) Quarantine: keeping newly bought or imported animals apart for a period to check that they do not carry disease
(ii) Immunity: the ability of an animal's body to resist a particular disease
(iii) Zoonotic disease: an animal disease that can be passed to humans, e.g. rabies, anthrax, tuberculosis
(b) Any four: damages the liver, which is condemned at slaughter; causes anaemia, weight loss and poor growth; lowers milk and wool yield; causes death (liver rot); increases cost of treatment; lowers fertility
(c) Any three: dipping or spraying with insecticide; dusting; clipping/shearing; good sanitation of houses; isolating infested animals; avoiding overcrowding
(d)(i) Queen; drone; worker
(ii) Any four: hive; smoker; veil/bee suit; gloves; hive tool; bee brush; honey extractor; queen excluder
One-sentence definitions in (a).