Yearling weight in beef cattle is classified as what level of heritability?

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

Answer: (B)

Yearling weight in beef cattle is classified as having a moderate level of heritability. This means that a significant portion of the variation in yearling weight can be attributed to genetic factors rather than environmental influences.

In cattle breeding, traits with moderate heritability are those that can show reasonable genetic gains when selection is applied. The heritability of yearling weight indicates that while genetics plays an important role in determining this trait, environmental factors also have a notable influence.

This level of heritability suggests that breeders can effectively select for desirable yearling weight while also needing to consider the environmental aspects that affect growth and development. Breeding strategies can therefore focus on both genetic improvements and management practices to optimize growth rates in cattle.