WAEC Animal Husbandry 2019 past questions
Ten questions from the 2019 WAEC Animal Husbandry paper, with answers and explanations. We hold 28 questions from this paper, and the Skolra app has all of them.
WAEC Animal Husbandry 2019 questions and answers
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1.One disadvantage of selection is that_________
- AIt requires crossbreeding of two unrelated breeds to work
- BIt depends on introducing new genes from other herds
- CIt permanently eliminates every undesirable trait in one generation
- DIt narrows the genetic base of the population and reduces variabilityCorrect
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Answer: D
Selection is a method of livestock improvement in which the farmer repeatedly chooses animals showing the most desirable traits (such as fast growth, high milk yield or good carcass quality) as parents, while culling out animals with poor traits.
- A
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2.The egg yolk in the diluents used in artificial insemination_________
- Aprotects the spermatozoa against cold shockCorrect
- Bprovides energy to keep the spermatozoa actively moving
- Cmaintains the pH of the diluted semen
- Dprevents bacterial contamination of the semen
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Answer: A
Correct answer: the egg yolk in the diluent protects the spermatozoa against cold shock.
- A
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3.In the marketing of animal products, middlemen create artificial scarcity in order to_______
- Aensure even distribution of the produce all year round
- Breduce the cost of transporting the produce to the market
- Cincrease the price of the productsCorrect
- Dencourage farmers to produce more animals
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Answer: C
Middlemen in the marketing chain often buy up animal products (such as eggs, meat or milk) and deliberately hold back some of the supply instead of releasing it all to the market at once. This withholding makes the product appear scarcer than it really is.
- A
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4.The process of obtaining wool from a live sheep is known as_______
- ACastration
- BDocking
- CShearingCorrect
- DDehorning
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Answer: C
Shearing is the correct answer. Shearing is the process of clipping or cutting off the woolly fleece from a live sheep, usually done once a year with shears or electric clippers, without harming the animal. The wool is then processed for use in textiles.
The distractors are other common sheep/livestock management practices that students often mix up with shearing:
Docking is the removal of part of an animal's tail (commonly done in lambs), not the removal of wool.
- A
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5.Mad cow disease can easily spread on a farm through___________
- Afeed containing meat-and-bone meal from infected animalsCorrect
- Bbites from ticks and other blood-sucking insects
- Ccontaminated drinking water on the farm
- Ddirect skin contact between healthy and sick animals
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Answer: A
Mad cow disease (Bovine Spongiform Encephalopathy, BSE) is caused by an abnormal protein (a prion), not by a bacterium, virus or parasite. This is why it does not spread the way most farm diseases do.
So the correct route is through contaminated feed.
- A
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6.The hormone responsible for broodiness in hen is______
- AOxytocin
- BProlactinCorrect
- COestrogen
- DProgesterone
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Answer: B
Prolactin is the hormone responsible for broodiness in the hen. It is secreted by the anterior pituitary gland, and a rise in its level makes a hen stop laying, sit tightly on the eggs (or even on no eggs), fluff her feathers, and show the clucking, aggressive behaviour poultry farmers call broodiness.
- A
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7.Which of the following grass species is used for roofing farmstead?
- AAndropogon tectorum (Thatching grass)Correct
- BPanicum maximum (Guinea grass)
- CPennisetum purpureum (Elephant grass)
- DCynodon dactylon (Bermuda grass)
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Answer: A
Andropogon tectorum, commonly called thatching grass, is the species specifically grown and harvested for roofing farmstead buildings in Nigeria. Its long, tough, water-shedding stems are tied in overlapping bundles to form a thatch roof on farm huts, barns and stores — in fact its Latin species name, tectorum, literally means "of roofs".
- A
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8.An area of land on which forage grass and legumes naturally grow is called________
- AArtificial pasture
- BFallow land
- CPaddock
- DNatural pastureCorrect
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Answer: D
Natural pasture is correct. In Animal Husbandry, a natural pasture is land on which forage grasses and legumes grow on their own, without the farmer deliberately planting them, and is used directly for grazing livestock.
- A
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9.If a group of animals is picked from a herd based on their fertility rate, growth rate and size, the selection is said_______
- APedigree selection
- BMass selectionCorrect
- CNatural selection
- DProgeny testing
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Answer: B
Mass selection is correct. In mass (also called individual or performance) selection, animals are picked for breeding based on their own observed traits of economic importance, such as fertility rate, growth rate and body size, without reference to their ancestors' or offspring's records. The farmer simply measures each animal's performance and keeps the best performers.
- A
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10.A partially fermented preserved forage is referred to as___________
- AFodder
- BHaylageCorrect
- CHay
- DSilage
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Answer: B
Haylage is the correct answer.
In forage conservation, the method and degree of fermentation distinguish the products:
Hay is preserved by sun-curing (drying) the forage to a very low moisture content. There is no fermentation involved at all — preservation comes from removing water so spoilage organisms cannot grow.
- A
The questions come from past JAMB, WAEC and NECO papers. We use software to help write the answer options and explanations, and every answer is checked twice before it goes on the site. How we check
Spotted a wrong answer? Tell us from the app or on the contact page and we check it.
Practise all 28 questions we hold from the 2019 paper, on a timed CBT screen
Every question has the answer and an explanation, in the Skolra app.