Cow-Calf Certification Practice Exam

To be ready for the breeding season, developing heifers should reach what percentage of their mature weight?

1. 60%

2. 65%

3. 70%

4. 85%

The correct answer is: 65%

Reaching 65% of their mature weight is an important goal for developing heifers before the breeding season. Achieving this weight is crucial because it positions the heifers to maximize their reproductive performance. At this percentage of mature weight, heifers are typically mature enough physically and physiologically to handle the demands of breeding, including successful conception and carrying a calf. Heifers that are underweight at the time of breeding may face challenges such as increased risk of infertility or lower fertility rates, possibly leading to extended calving intervals or failure to conceive altogether. Conversely, heifers that are significantly over or under the desired weight can also experience complications which can affect their health and future productivity. While lower percentages like 60% may be sufficient for some heifers, 65% has been established as a benchmark that tends to promote optimal outcomes in terms of reproduction. This weight provides a good balance that supports both the health of the heifer and the efficiency of the breeding process. This emphasis on 65% reflects an understanding of the nutritional and developmental needs of heifers as they approach puberty and prepares them adequately for successful breeding.