Which part of the hoof is known as the furthest weight-bearing point?

The buttress is known as the furthest weight-bearing point of the hoof. This part of the hoof is located at the back and provides structural support and stability during movement. The buttress helps to distribute the horse's weight evenly across the hoof, ensuring that the force is absorbed effectively, which is crucial for the horse's overall balance and soundness while in motion.

While the frog, white line, and heel bulbs all play important roles in hoof structure and function, they do not serve as the main weight-bearing area. The frog acts as a shock absorber, aiding in circulation within the hoof, while the white line serves as the junction between the hoof wall and the sole and plays a role in the attachment of the hoof. The heel bulbs contribute to the overall shape and function of the hoof but are not as primary in weight-bearing as the buttress. Thus, the buttress is identified as the principal region where the weight is effectively supported when the horse is standing or moving.