Which characteristic is undesirable in show rabbits?

Cow hocks or poor leg structure is an undesirable characteristic in show rabbits because it directly affects the animal's mobility and overall appearance, which are crucial in competitive showing. Cow hocks refer to a condition where a rabbit's hind legs turn inwards at the hocks, creating a weak stance and an awkward gait. This not only detracts from the rabbit’s aesthetic appeal, which is important in show settings, but it can also indicate underlying health issues or genetic flaws that can be passed to offspring. Proper leg structure is essential for ensuring that a rabbit can move gracefully and perform well in various show situations, thus making cow hocks a significant fault in breeding and showing scenarios.

In contrast, traits such as well-groomed fur, healthy body weight, and bright, alert eyes are indicators of a rabbit's health and care, which are desirable characteristics in show rabbits. Well-groomed fur showcases the owner's commitment to caring for the animal, while healthy body weight and bright eyes are signs of a rabbit's overall vitality and good health, essential qualities for any show participant.