Which of the following characteristics is NOT ideal for breeding heifers?

The characteristic that is not ideal for breeding heifers is curved pasterns. In livestock evaluation, the pastern is an important anatomical feature that affects an animal's overall soundness and mobility. Ideal pasterns should be short, strong, and straight.

Short pasterns contribute to better strength and stability, which is imperative during breeding; strong pasterns indicate overall structural integrity and support for the animal's weight and physical activity. Straight pasterns also help with even weight distribution and promote proper movement.

On the other hand, curved pasterns can suggest potential issues with conformation and movement. They may lead to improper weight distribution and increase the risk of injuries or lameness in the animal. Therefore, breeding heifers with curved pasterns can result in a lower quality in offspring and may negatively affect the overall health and performance of the livestock.