Cow-Calf Certification Practice Exam

Straightbred cattle can be more susceptible to genetic abnormalities compared to crossbred cattle due to a phenomenon known as inbreeding depression. This occurs when closely related individuals breed, which can result in a higher likelihood of inherited genetic defects becoming manifest. Inbreeding reduces genetic diversity, increasing the chances that offspring inherit two copies of deleterious genes.

On the other hand, crossbred cattle typically benefit from hybrid vigor, or heterosis, which arises from the combination of different genetic backgrounds. This often leads to improved health, growth rates, and fertility due to increased genetic diversity. Therefore, the inherent risks associated with genetic abnormalities in straightbred populations make it a valid assertion that these cattle can be more susceptible to such issues.

Understanding this distinction is vital for breeding practices aimed at minimizing genetic risks while maximizing overall herd productivity and health.