What level of heritability is associated with feed efficiency in sheep?

What level of heritability is associated with feed efficiency in sheep?

• A. High
• B. Moderate
• C. Low
• D. Very High

Answer: (B)

The level of heritability associated with feed efficiency in sheep is considered to be moderate. Heritability is a measure of how much of the variation in a trait can be attributed to genetic factors as opposed to environmental factors. In the case of feed efficiency, which refers to the ability of sheep to convert feed into body mass or wool, there is a significant genetic component, but it is also influenced by various environmental factors such as diet quality, management practices, and health status.

A moderate heritability means that there is enough genetic variation among sheep regarding their feed efficiency that selective breeding could lead to improvements in this trait over time. However, it's not so high that genetics alone would completely determine feed efficiency, as substantial environmental influences still play a role. Therefore, through breeding programs that focus on selecting individuals with good feed conversion ratios, producers may enhance feed efficiency in their flocks.