Number 1
(1a)
A: Hen
B: Rabbit
(1b)
A — External features of a hen:
(PICK ANY THREE)
(i) The body is covered with feathers.
(ii) It has a horny beak without teeth.
(iii) It has a comb and wattles on the head.
(iv) It has two wings.
(v) It has two scaly legs with claws.
(vi) It has a short tail covered with feathers.
B — External features of a rabbit:
(PICK ANY THREE)
(i) The body is covered with fur.
(ii) It has a pair of long ears.
(iii) It has four legs with claws.
(iv) It has a short, fluffy tail.
(v) It has long whiskers around the mouth.
(vi) The hind legs are longer and stronger than the forelegs.
(1c)
A: Battery cage.
B: Rabbit hutch.
(1d)
(PICK ANY THREE)
(i) Vaccination against common poultry diseases.
(ii) Regular cleaning and disinfection of the poultry house.
(iii) Isolation and treatment of sick birds.
(iv) Provision of clean water and uncontaminated feed.
(v) Regular control of internal and external parasites.
(vi) Proper disposal of dead birds and litter.
(1e)
(PICK ANY THREE)
(i) The vulva becomes swollen and reddish or purplish.
(ii) The doe becomes restless.
(iii) It readily accepts the buck for mating.
(iv) It raises its hindquarters when touched on the back.
(v) It may mount other rabbits.
(vi) It rubs its chin against objects frequently.
(1f)
(PICK ANY FOUR)
(i) Both animals take food into the body through the mouth.
(ii) In both animals, food passes through the oesophagus.
(iii) Both carry out mechanical digestion of food.
(iv) Both use digestive enzymes for chemical digestion.
(v) Digested nutrients are absorbed mainly through the small intestine.
(vi) Water and mineral salts are absorbed from the undigested food.
(vii) Undigested food materials are eventually removed from the body.
Number 2
(2a)
C: Maize offal
D: Bone meal
E: Elephant grass
(2b)
C: Carbohydrate
D: Mineral salts, especially calcium and phosphorus
(2c)
C — Functions of carbohydrate:
(PICK ANY TWO)
(i) It supplies energy for body activities.
(ii) It helps to maintain body temperature.
(iii) Excess carbohydrate is converted to fat and stored in the body.
(iv) It prevents the excessive use of body protein for energy.
D — Functions of mineral salts:
(PICK ANY TWO)
(i) They promote the formation of strong bones and teeth.
(ii) They aid proper growth and development.
(iii) They help in blood clotting and muscle contraction.
(iv) They support normal body metabolism and egg-shell formation.
(2d)
C — Processing of maize offal:
(PICK ANY TWO)
(i) The maize grains are shelled, cleaned and dried.
(ii) The grains are milled or ground.
(iii) The milled maize is sieved.
(iv) The bran, germ and other offal are separated from the maize flour.
D — Processing of bone meal:
(PICK ANY TWO)
(i) Animal bones are collected and cleaned.
(ii) The bones are boiled or steamed to remove flesh and fat.
(iii) The bones are dried properly.
(iv) The dried bones are crushed and ground into powder.
(2e)
C: Ketosis.
D: Rickets.
(2f)
Observable features of E:
(PICK ANY THREE)
(i) It has long and broad leaves.
(ii) It has thick, jointed stems.
(iii) It grows tall.
(iv) It forms dense clumps or tufts.
(v) The leaves have a prominent midrib.
(vi) The leaf margins are rough or sharp.
(2g)
(PICK ANY ONE)
(i) Stem cuttings.
(ii) Root splits.
(2h)
Pennisetum purpureum.
Number 3
(3a)
F: Goat
G: Tick
H: Hide
(3b)
Breeds of goat used for large-scale leather production:
(PICK ANY TWO)
(i) Red Sokoto goat.
(ii) Kano Brown goat.
(iii) Sahel goat.
(iv) West African Dwarf goat.
(3c)
Traits considered when selecting a goat for breeding:
(PICK ANY FOUR)
(i) The animal should be healthy and free from diseases.
(ii) It should have a high fertility and prolificacy rate.
(iii) It should have a good body conformation.
(iv) It should grow rapidly and gain weight easily.
(v) It should have sound and well-developed reproductive organs.
(vi) It should be resistant to diseases and parasites.
(vii) It should have a good pedigree and production record.
(viii) A female should possess good mothering ability.
(3d)
Effects of ticks on goats:
(PICK ANY FOUR)
(i) They suck blood and cause anaemia.
(ii) They transmit diseases to the animal.
(iii) They cause irritation and restlessness.
(iv) They create wounds and damage the skin or hide.
(v) They reduce the growth and productivity of the animal.
(vi) Tick bites may lead to secondary infections.
(vii) Severe infestation may cause weakness and death.
(3e)
Ways of controlling tick infestation on the hide of a live animal:
(PICK ANY THREE)
(i) Dip or spray the animal regularly with an approved acaricide.
(ii) Remove ticks from the animal by hand and destroy them.
(iii) Clean and disinfect the animal house regularly.
(iv) Quarantine and treat newly introduced or infested animals.
(v) Clear bushes and weeds around the animal house.
(3f)
Disease that causes lesions on the hide of a live animal:
(PICK ANY ONE)
(i) Mange.
(ii) Ringworm.
(iii) Dermatophilosis.
(iv) Goat pox.
(3g)
Ways of treating lesions on the hide of a live animal:
(PICK ANY TWO)
(i) Clean the affected area with an antiseptic solution.
(ii) Apply suitable antibiotic, antifungal or acaricidal medication.
(iii) Isolate and treat the affected animal.
(iv) Keep the wound clean and protect it from flies.
(3h)
Effect of lesions on processed hide:
(PICK ANY ONE)
(i) They reduce the quality and market value of the hide.
(ii) They cause scars, holes and weak spots in the leather.
(iii) They may make the hide unsuitable for leather production.
COMPLETED!!!