a) (i) Describe the life cycle of louse.
(ii) State three effects of louse on its host.
(iii) State three ways in which louse could be controlled.
(iv) Name three farm animals that could be infested by louse.
b) Discuss coccidiosis in farm animals under the following headings:
(i) two animals mostly affected;
(ii) causal agent;
(iii) two symptoms;
(iv) two control measures
(ii) State three effects of louse on its host.
(iii) State three ways in which louse could be controlled.
(iv) Name three farm animals that could be infested by louse.
b) Discuss coccidiosis in farm animals under the following headings:
(i) two animals mostly affected;
(ii) causal agent;
(iii) two symptoms;
(iv) two control measures
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Correct Answer: Option
Explanation:
(a) Description of life cycle of louse;
Eggs are laid on the surface of the body of the host
Eggs hatch into nymphs
Nymphs moult
Moulted nymphs become adult
Adults live on the surface of the body of the host
(ii) Effects of louse on its host;
Bites cause skin irritation/restlessness/discomfort
Sores on skin may result in secondary infection
Results in low productivity
Transmits diseases e.g. Typhus, trench fever
Causes anaemia
Emaciation/loss of weight
Death/coma
(iii) Ways of controlling louse;
Regular cleaning of animal pens/good sanitation
Avoidance of overcrowding of animalsDipping animals in insecticide solution
Dusting of birds with appropriate chemicals
Drenching with appropriate chemicals
Quarantine new birds
Ethno veterinary practices
Use of injectable -
Vaccination/immunization
(iv) Farm animals infested by louse;
Cattle
Sheep
Goat
Pig
Camel
Horse
Rabbit
Donkey
Duck
Turkey
Quail
Ostrich
Guinea fowl
Grasscutter
Chicken/fowl
(b) Discussion on Coccidiosis;
(i) Animals mostly infected
Rabbit
Turkey
Chicken/fowl
Duck
Geese
Grasscutter
Goat
Pig
Ostrich
Quail
Guinea fowl
Cattle
(ii) Causal agent;
- Protozoa/Eimeria spp.
Symptoms
Blood stained diarrhoea
Loss of appetite/anorexia
Loss of weight /emaciation
Low productivity
Loss of hair/alopecia in rabbits
Anaemia
Death
Sluggishness
Droopy wings in poultry/rough feathers
(iii) Control measures
Regular changing of litter
Proper sanitation measures
Vaccination
Fumigation
Use of coccidiostat in feed/water
Burying/burning/incinerating dead animals
(a) Description of life cycle of louse;
Eggs are laid on the surface of the body of the host
Eggs hatch into nymphs
Nymphs moult
Moulted nymphs become adult
Adults live on the surface of the body of the host
(ii) Effects of louse on its host;
Bites cause skin irritation/restlessness/discomfort
Sores on skin may result in secondary infection
Results in low productivity
Transmits diseases e.g. Typhus, trench fever
Causes anaemia
Emaciation/loss of weight
Death/coma
(iii) Ways of controlling louse;
Regular cleaning of animal pens/good sanitation
Avoidance of overcrowding of animalsDipping animals in insecticide solution
Dusting of birds with appropriate chemicals
Drenching with appropriate chemicals
Quarantine new birds
Ethno veterinary practices
Use of injectable -
Vaccination/immunization
(iv) Farm animals infested by louse;
Cattle
Sheep
Goat
Pig
Camel
Horse
Rabbit
Donkey
Duck
Turkey
Quail
Ostrich
Guinea fowl
Grasscutter
Chicken/fowl
(b) Discussion on Coccidiosis;
(i) Animals mostly infected
Rabbit
Turkey
Chicken/fowl
Duck
Geese
Grasscutter
Goat
Pig
Ostrich
Quail
Guinea fowl
Cattle
(ii) Causal agent;
- Protozoa/Eimeria spp.
Symptoms
Blood stained diarrhoea
Loss of appetite/anorexia
Loss of weight /emaciation
Low productivity
Loss of hair/alopecia in rabbits
Anaemia
Death
Sluggishness
Droopy wings in poultry/rough feathers
(iii) Control measures
Regular changing of litter
Proper sanitation measures
Vaccination
Fumigation
Use of coccidiostat in feed/water
Burying/burning/incinerating dead animals