(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 snail.
(b) Mention three insect pests of sheep.
(c) State four in which the productivity of farm animals could be enhanced.
Explanation
(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.