Cow-Calf Certification Practice Exam

What are two simplified crossbreeding systems that alleviate the need for extensive breeding pastures?

1. AI, 2-breed rotation

2. 3-breed rotation, AI

3. F1, 2-breed composite

4. Terminal sire, 2-breed rotation

The correct answer is: AI, 2-breed rotation

The simplified crossbreeding systems that alleviate the need for extensive breeding pastures involve approaches that maximize genetic diversity while minimizing complexity and land requirements. The first system, artificial insemination (AI), allows for the use of superior genetics without the need for maintaining multiple breeding bulls on site, thus reducing pasture needs. This method enables producers to choose the best genetic traits from bulls around the country or even internationally. The second part of the answer involves the 2-breed rotation system. This system entails rotating two different breeds across generations, which can effectively improve hybrid vigor (heterosis) in calves. It is a straightforward system that avoids the complications of managing numerous breeds and can still benefit from the traits of both breeds involved. Together, these two methodologies create an efficient breeding system that does not require extensive pastures, making it a practical choice for many cow-calf operations. By relying on AI and a simple rotational strategy, producers can achieve desirable breeding outcomes with reduced logistical challenges related to land use.