What is the primary function of a gouge in veterinary procedures?

The primary function of a gouge in veterinary procedures is indeed to excise bone. A gouge is a specialized surgical instrument with a curved blade that's designed to create a channel or remove a portion of bone efficiently. Its unique shape allows it to carve out tissue in a controlled manner, which is especially useful in orthopedic surgeries or procedures involving bone removal or shaping.

Gouges are typically employed in scenarios where precision is necessary, such as when forming a recess to fit a prosthetic or when removing a section of bone to access underlying structures. The design of the gouge allows for effective cutting while minimizing surrounding tissue trauma, ensuring a more controlled outcome during surgical procedures.

The other options, while relevant to surgical contexts, do not accurately reflect the primary function of a gouge. For example, cutting tissues can refer broadly to many surgical instruments, retracting tissues relates to instruments specifically designed for holding back tissue to enhance visibility during surgery, and measuring depth typically involves different tools altogether. The gouge’s specific utility for excising bone makes it the correct answer.