Home ยป Past Questions ยป Agricultural-science ยป Waec ยป 1991 ยป Page 2
22

Selection of breeding males based on the performance of their female relatives is known as

  • A. sib-selection
  • B. individual selection
  • C. tandem-method
  • D. progeny testing
  • E. index selection
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23

The major cause of spoilage in fresh fish is

  • A. high humidity
  • B. fungal attack
  • C. high moisture content
  • D. bacterial attack
  • E. protozoa
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24

Diarrhoea tainted with blood is a symptom of

  • A. trypanosomiasis
  • B. coccidiosis
  • C. ketosis
  • D. brucellosis
  • E. aspergilliosis
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25

Temperature is an important factor which is monitored in fish ponds because

  • A. it determines the feeding rate in fish
  • B. its fluctuation retards fish reproduction
  • C. it affects the metabolic processes in fish
  • D. it decreases the reaction of fishes to other water organisms
  • E. it reduces the effect of decaying materials in ponds
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26

Management practices of established pasture include the following except

  • A. fencing
  • B. transplanting
  • C. replanting
  • D. manuring
  • E. re-seedings
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27

The best control ensure for rinderpest disease in cattle is

  • A. sanitation
  • B. isolation
  • C. use of antibiotics
  • D. eradication of infected stock
  • E. vaccination
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28

Which of the following characteristics is not correct of pigs?

  • A. prolific animals
  • B. efficient feed converters
  • C. source of meat
  • D. source of land
  • E. source of skin
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29

Which of the following is not a method of improving range land?

  • A. controlled stocking
  • B. rotational grazing
  • C. use of fertilizers
  • D. introduction of legumes
  • E. overgrazing
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30

Forages cut fresh and preserved in silo or pit are referred to as

  • A. hay
  • B. silage
  • C. haylage
  • D. soilage
  • E. compost
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31

When a cockerel is castrated, it becomes a

  • A. broiler
  • B. cock
  • C. layer
  • D. capon
  • E. pullet
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32

The length of oestrus cycle (in days) in goat is

  • A. 16 - 17
  • B. 18 - 21
  • C. 19 - 20
  • D. 20 - 22
  • E. 20 - 24
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33

Basal feeds have a high proportion of easily digestible

  • A. minerals
  • B. proteins
  • C. fats
  • D. vitamins
  • E. carbohydrates
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34

Daily management routines in poultry include the following except

  • A. egg collection
  • B. record keeping
  • C. water and feed provision
  • D. health care
  • E. debeaking
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35

Which of the following is not a sign of animal approaching parturition?

  • A. soft, pliable and swollen vulva
  • B. relaxed cervix
  • C. full mammary gland
  • D. relaxed pelvic ligaments
  • E. drop in milk production
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36

The factor affecting growth and development of young animals from birth to maturity include the following except

  • A. breed of animal
  • B. size of the head
  • C. nutritional status
  • D. health status
  • E. housing
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37

The act of parturition in rabbits is called

  • A. kindling
  • B. kidding
  • C. farrowing
  • D. lambing
  • E. calving
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38

Which of the following may cause disease in a fish pond?

  • A. mixed stocking
  • B. liming
  • C. poor management practices
  • D. harvesting
  • E. fertilization
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39

Which of the following may cause disease in a fish pond?

  • A. mixed stocking
  • B. liming
  • C. poor management practices
  • D. harvesting
  • E. fertilization
View Answer & Discuss WAEC 1991
40

Which of the following is not a breed of cattle?

  • A. ndama
  • B. sokoto gudali
  • C. white fulani
  • D. sokoto red
  • E. muturu
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41

I.Pale leaves II. Shrunken new leaves III. Water-soaked bark which peels off IV. Gum-like exudation from the cracks on the bark. Which of the following diseases of citrus has the symptoms listed above?

  • A. die-bark
  • B. gum-mosis
  • C. blight
  • D. tristeza
  • E. citrus scab
View Answer & Discuss WAEC 1991
42

What symptom can be used to identify maize rust?

  • A. yellow colouration of the leaves
  • B. raised brown spots on the leaves
  • C. infected leaves showing stripes of yellow and green
  • D. drying up to the leaves
  • E. shedding of leaves
View Answer & Discuss WAEC 1991