Agricultural Science JAMB, WAEC, NECO AND NABTEB Official Past Questions

22

bull calves intended for breeding are sometimes nose-ringed in order to

  • A. improve their sense of detecting heat in cow
  • B. minimize the incidence of respiratory diseases
  • C. decrease the time of reaching maturity
  • D. decrease the space requirement of the bull
  • E. facilitate easy handling of the bull
View Answer & Discuss WAEC 1993
23

cracking of egg laid by a flock of layers in a farm can be corrected by

  • A. addition of iodine to the water supply
  • B. increasing the level of vitamin D in mash
  • C. increasing the quality of calcium in mash
  • D. increasing the amount of calcim, phosphorus and vitamin D in their feed
  • E. increasing carotene and calcium level of the mash
View Answer & Discuss WAEC 1993
24

Which of the following statements about ticks is not correct?

  • A. its body is divided into two parts
  • B. it has six pairs of legs
  • C. it can be controlled by regular dipping of animals
  • D. it is an external parasite
  • E. it can be found on goats
View Answer & Discuss WAEC 1993
25

the aims of breeding in farm animals include the following except

  • A. increasing production potentials of farm animals
  • B. improving the quality of animal products
  • C. improving adaptability of farm animals to a new environment
  • D. evolving new breeds of animals suitable for all purposes
  • E. increasing tolerance of animal to disease and pests
View Answer & Discuss WAEC 1993
26

The part of the egg that prevents the yolk from being damaged by keeping the yolk at the centre of the egg is the

  • A. germ spot
  • B. albumen
  • C. air space
  • D. chalaza
  • E. egg membrane
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27

Which of the following pond maintenance operation will ensure adequate supply of oxygen and hygienic condition for fish in a pond?

  • A. deweeding
  • B. distilling
  • C. fertilization
  • D. eradication of predators
  • E. supplementary feeding
View Answer & Discuss WAEC 1993
28

The interval from the beginning of one heat period to the another is known as

  • A. gestation period
  • B. fertilization
  • C. incubation period
  • D. heat period
  • E. oestrus cycle
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29

The nymphs of lice reach maturity in about

  • A. one week
  • B. two weeks
  • C. three weeks
  • D. four weeks
  • E. five weeks
View Answer & Discuss WAEC 1993
30

The general symptoms of malnutrition in animals include the following except

  • A. retard growth
  • B. low production
  • C. susceptability to diseases
  • D. high mortality
  • E. increase in body size
View Answer & Discuss WAEC 1993
31

Liming of fish pond is carried out in order to

  • A. increase PH of the water
  • B. provide more food for fishes
  • C. provide the soil nutrients for fishes
  • D. correct both acidity and alkalinity of water
  • E. maintain the water level of the pond
View Answer & Discuss WAEC 1993
32

The following are important management practices in the husbandry of piglets except

  • A. castration of male piglets not neded for breeding
  • B. administration of drugs containing iron piglets
  • C. provision of grass beddings for piglets
  • D. cutting of the needle-teeth piglets
View Answer & Discuss WAEC 1993
33

The gestation period of a cow is approximately

  • A. 483 days
  • B. 423 days
  • C. 383 days
  • D. 283 days
  • E. 183 days
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34

The sites of microbial activities along the gastro-instentinal tract of ruminants include the following except

  • A. rumen
  • B. reticulum
  • C. large intestine
  • D. abomasum
  • E. colon
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35

A pasture legume mixture cut and preserved but not dried for dry season feeding of livestock is referred to as

  • A. hay
  • B. soilage
  • C. fodder
  • D. silage
  • E. creep feed
View Answer & Discuss WAEC 1993
36

Which of the following is not a control measure of cowpea weevil?

  • A. fumigation of stored seeds
  • B. stroage of seeds in air-tight containers
  • C. timely hervesting
  • D. dusting seeds with 0.5% lindane dust
  • E. innoculation of seeds
View Answer & Discuss WAEC 1993
37

Which of the following is not a leafy vegetable?

  • A. lycopersicon esculentum
  • B. amaranthus spp
  • C. celsosia spp
  • D. corchorus spp
  • E. telfaria occidentials
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38

parboiling is carried out in the processing of rice in order to

  • A. decrease the amount of waste products
  • B. improve the taste of the rice
  • C. facilitate the polishing of rice
  • D. reduce percentages of breakage
  • E. increase the protein content of rice
View Answer & Discuss WAEC 1993
39

The popular pasture crops in Nigeria include the following except

  • A. giant ster
  • B. stylo
  • C. elephant grass
  • D. kudzu
  • E. carpet grass
View Answer & Discuss WAEC 1993
40

The crop which can be processed into powered form for effective preservation include the following except

  • A. maize
  • B. yam
  • C. pepper
  • D. soya bean
  • E. kolanut
View Answer & Discuss WAEC 1993
41

The aim of a plant breeder in producing a crop variety which is tolerated to extreme of cold, drought, wind and heat is based on the

  • A. adaptation of the variety to climate conditions
  • B. enhancing the resistance of the variety to diseases
  • C. meeting the needs of the consumers
  • D. enhancing the resistance of the variety to pests
  • E. meeting the needs of different farmers
View Answer & Discuss WAEC 1993
42

Control of weeds of forage crops can be carried out by the following methods except

  • A. cutting
  • B. burning
  • C. use of herbicide
  • D. biological control
  • E. grazing
View Answer & Discuss WAEC 1993