In animal breeding, selection intensity is best defined as the:
Correct answer: A. Standardized difference between selected and population means
- A. Standardized difference between selected and population means
- B. Proportion of selected animals in the population
- C. Correlation between phenotype and breeding value
- D. Average age of parents when offspring are born
Explanation
Selection intensity expresses how strongly animals are selected by standardizing the selection differential with the phenotypic standard deviation. The proportion selected affects intensity, but it is not the definition itself.
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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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