Generation interval in a breeding programme is the average age of parents when their:
Correct answer: A. Offspring used as replacements are born
- A. Offspring used as replacements are born
- B. Selected offspring are born
- C. First offspring are conceived
- D. Last offspring leave the herd
Explanation
Generation interval is commonly defined as the average age of the parents when the offspring that replace them are born. A shorter generation interval can increase annual genetic progress if accuracy and selection intensity are maintained.
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About Animal Breeding and Genetics
Covers genes, chromosomes, inheritance, genetic variation, mutations, heritability and quantitative traits in livestock. It also includes selection methods, breeding systems, inbreeding, crossbreeding, heterosis and evaluation of traits such as growth, milk yield, fertility and disease resistance.
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