What is the optimum relative humidity in a hatching room?
Correct answer A. 80%
Subject / 2,686 questions
Agriculture MCQs
Page 104 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 104 of 135
What is a pesticide that kills or controls insect eggs called?
Correct answer C. Ovicide
What is an external or internal disturbance in birds caused by an unusual condition called?
Correct answer A. Stress
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Which component of a pesticide formulation produces its toxic effect?
Correct answer B. Active ingredient
What happens when a bird pants?
Correct answer A. Respiration rate increases
What term describes parasites that can attack a large number of different host species?
Correct answer B. Polyphagous parasites
Compared with larger breeds, how does the body temperature of smaller poultry breeds differ?
Correct answer A. Higher
Cotesia flavipes is an endoparasite of the larvae of which pest?
Correct answer A. Sugarcane stem borer
What is the result of feeding a ration deficient in pantothenic acid to breeder hens?
Correct answer A. Zero hatchability
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What is an insect parasite that remains on one host species throughout its life called?
Correct answer A. Permanent parasite
The chorion is one of the membranes surrounding the developing chick embryo. From which germ layer does its tissue largely develop?
Correct answer B. Mesoderm
Which of the following are good examples of parasites?
Correct answer D. All of the above
What happens if an egg is set for incubation with its broad end downwards and its pointed end upwards?
Correct answer D. Embryo death occurs
What are parasites called when their own hosts are also parasites?
Correct answer C. Hyperparasites
The chalaza is a protein strand attached to the yolk of an egg. What is its function?
Correct answer B. Keeps the yolk centred
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What is a parasite that needs only a single host to complete its life cycle called?
Correct answer D. Monoxenous parasites
What are insects that parasitise other insects and are used as biological control agents called?
Correct answer A. Entomophagous parasites
How well do dirty eggs hatch when they are set for incubation?
Correct answer C. Poorly
Which peoples pioneered the artificial incubation of eggs?
Correct answer D. Egyptian & Chinese
Which of the following is an egg parasitoid of lepidopterous insects?
Correct answer B. Trichogramma sp.