Final answer:
Conformation defects in horses' front legs include Over at the knee, Bucked knees, Clubfoot, and Base-narrow stance. These conditions can impact a horse's performance and overall health, and are critical in evaluating equine conformation.
Step-by-step explanation:
Conformation defects commonly associated with the front legs in horses are an important aspect of equine health and veterinary science. The correct answer is B: Over at the knee, Bucked knees, Clubfoot, Base-narrow stance. These terms refer to various structural deviations from the ideal leg conformation, which can affect a horse's performance and soundness.
- Over at the knee - This is a condition where the horse's front knees are bent forward when viewed from the side.
- Bucked knees - Also known as 'knee sprung,' this condition is characterized by knees that bend excessively forward.
- Clubfoot - Clubfoot is a deformity characterized by a hoof that is too upright, often associated with a shortened and more vertical pastern.
- Base-narrow stance - This is where the horse's legs are too close together at the hooves compared to the width of the shoulders, often leading to uneven wear on the hooves and additional strain on the legs.