NECO 2019 - ANIMAL HUSBANDRY OBJ & THEORY ANSWER
NECO 2019 - ANIMAL HUSBANDRY OBJ & THEORY & FISHERY ANSWER
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In a tabular form
(i) Presence of penis.
(ii) Presence of testes.
(iii) Presence of vas defences.
(i) Absence of penis.
(ii) Presence of ovaries.
(iii) Absence of vas defenses
In a tabular form
(i) Presence of beak.
(ii) Presence of wings.
(iii) Absence of four walking legs.
(iv) Absence of teeth.
(v) Absence of furs
(i) Absence of beak
(ii) Absence of wings.
(iii) Presence of four walking legs.
(iv) Presence of teeth
(v) Presence of furs.
Rabbit --> kindling
Goat --> kindling
Pig --> farrowing
Cattle --> calving
(i) Low capital is investment
(ii) very little care and feeding is required
(iii) Low labour required
(iv) Low levels of management
(i) it control disease
(ii) it decrease the chance of injury
(iii) prevent stallion over use
(iv)allows more mares to be breed
(v)semen is evaluated each time it is collected.
(i)it involve the mating of related individuals that have one or more relatives in common
(ii)Linebreeding is a form of inbreeding.
(i)it involves arranging matings so that one or more relatives occur more than once in a pedigree
(ii)Linebreeding is a term commonly used to describe milder forms of inbreeding
(iii) Health status of the animal
(iv)Breeds of animal
(ii)poor hygiene or bad sanitation
(iii)not given vaccination
(iv)Bad management of stock
(ii)cause liver rottening
(iii)it leads to digestive disturbance and bleeding internally.
(i) Death of fingerlings
(ii) poor growth
(iii) it degrades the quality of the water for the fingerlings
(iv) Difficulty in movement
Algal bloom; is a rapid increase in the population of algae in an aquatic system. In other words algal blooms may occur in freshwater as well as marine environments
Test cropping; is a technique which is designed to check whether the crops meet their specific requirements. In other words is the removal of marketable sized fish from the pond
Aquarium; is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles such as turtles, and aquatic plants.
(ii) sunken features
(i)sunken; for supplement and pumping.
(ii)barrage; for protecting the dike from floods
(iii)diversion; for sloping ground as a cut-and-fill pond
(i)Maximum fish production is possible in intensive polyculture.
(ii)More profit from fish farming is possible.
(iii)Creates many employment opportunities.
Carnivores: These are animals that feeds on animals only. They derive their energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging.
Herbivores: These are animals that feeds on plants only. They get their energy from eating plants, and only plants. Many herbivores have special digestive systems that let them digest all kinds of plants, including grasses.
(3aiii) Grazers: Grazers are animals, usually a herbivorous mammal, which eats grasses or other multicellular organisms such as algae.
(Choose any FOUR)
(iii) Fats and oil
(iv) Mineral salt
L = 30,000cm
b = 10,000cm
Area of the pond = 30,000×10,000/100×100
(i) Resistance to diseases
(ii) Fast growth
(iii) Accept supplementary feed
(iv) Low cost of production
(v) Easy to breed in captivity
Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater.
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