If a bull has an estimated breeding value of 800 kg for a growth trait, his expected transmitting ability for that trait is approximately:
Correct answer: B. 400 kg
- A. 200 kg
- B. 400 kg
- C. 800 kg
- D. 1,600 kg
Explanation
Expected transmitting ability is approximately one-half of estimated breeding value because offspring receive one allele set from each parent. Therefore, half of 800 kg is 400 kg.
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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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