What equipment is commonly used to restrain pigs?

The correct choice identifies various tools specifically designed for handling and restraining pigs, which is vital for their safety and the safety of the handler during routine care and veterinary procedures.

Catchers are typically designed for safely immobilizing pigs without causing harm. Snares can be used to restrain a pig by applying pressure to its snout, allowing handlers to control its movements more effectively. V-troughs are structures that can be used to contain pigs during examination or treatment, keeping them stable and secure. Snubbing ropes provide added control, enabling handlers to manage the animal's movements while minimizing stress. Hobbles, which limit the movement of the legs, can be beneficial for preventing pigs from kicking or running away, making handling easier.

In contrast, collars, leashes, and muzzles, while applicable to other types of animals, are not practical for pigs due to their physiological structure and behavior. Cages, crates, and pens serve a different purpose, mainly for housing animals rather than restraining them for handling or medical treatment.

This selection of equipment is essential for effectively managing pigs in various agricultural and veterinary contexts, ensuring both animal welfare and handler safety.