Aid to Selection Unsuitable for Sex-Limited and Low-Heritability Traits
The aid to selection that cannot be used for sex-limited traits, traits with low heritability, and carcass/slaughter traits is:
- Progeny testing
- Individual selection — Correct Answer
- Pedigree selection
- Family selection
Explanation:
Correct Answer: Individual selection
Individual selection cannot be used for:
- Sex-limited traits — the trait is not expressed in one sex (e.g., bull cannot produce milk).
- Low heritability traits — phenotype is a poor indicator of genotype due to large environmental effects.
- Carcass/slaughter traits — the animal must be killed to measure the trait, so it cannot be selected directly.
For carcass traits, sib selection is used (siblings are slaughtered while the individual itself is kept for breeding). For sex-limited traits, progeny testing is used.
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
