(a)(i) Draw and label four parts of a land snail. (ii) State four features of a good housing unit for rearing snails. (ii) Name three predators of land snai...

Answer Details

(a)(i) Diagram of a land snail above

(a)(ii) Features of a good housing unit for rearing snails: -It must have shade. -Must be secured against pests/protection. -It should contain loam soil rich in humus. -Housing unit must be escape roof. -It must be well ventilated. -Separate apartment for adult snails and young snails (snailets). -Environment must be moist/humid. -Must facilitate easy cleaning/ease of management. -Avoid excess light in the snail pen. -Soil must not be acidic. -Secured against predators. -Protect snails from excessive wind/wind proof. -Soil should be sandy to minimize waterlogging. -Sufficient space for snails to graze freely.

(a)(iii) Predators of land snail: -Frogs. -Snakes. -Rodents/rats -Monitor lizards. -Agamma lizard. Shrews. -Hawk. -Crow. -Millipede. -Centipede. -Firefly larvae, -Salamander. -Beetles. -Mites. Nematodes. -Spider. -Bear. -Crab. -Cat. -Dog. -Toads.

(b) Insect pests of sheep: -Wool maggot/ maggot. -Housefly. -Botfly/warble flies. -Sheep lice/lice. -Biting midges/mites. -Black flies. -Mosquitoes. -Stable fly. -T'setse fly. 

(c) Ways of enhancing the productivity of farm animals: -Thrcugh animal improvement methods/introduction/Selection/Breeding/Artificial insemination. -Ensure proper sanitation/ cleanliness. -Isolation of sick animals. -Quarantine of newly introduced animals/stock. -Adopt good disease control measures. -Adopt good pest control measures. -Use of improved feed and feedstuff/ improved nutrition/balanced diet. -Avoid inbreeding. -Provision of adequate water. -Use of appropriate drügs. -Use of appropriate vaccines. -Keeping up-to-date records. -Replace damaged structures. - Ensure proper biosecurity.