What is the normal incubation period for a chicken egg under suitable conditions?
Correct answer: B. 21 days
- A. 18 days
- B. 21 days
- C. 24 days
- D. 28 days
Explanation
A chicken egg normally hatches after about 21 days of incubation at the proper temperature and humidity. Eighteen days is too short, while 24 and 28 days are more typical of some other poultry species or delayed hatching.
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Covers the breeds, anatomy, physiology, nutrition, housing, breeding, incubation and management of chickens and other domestic poultry. It includes brooding, vaccination, biosecurity, egg formation and quality, meat and egg production, common diseases, and the distinction between layer and broiler management.
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