There are three commonly used methods for restraining animals individually: static restrainers; restrainer-conveyors; and stun boxes/crushes. These methods are also categorised according to whether they provide active or passive restraint of the animal's head.
Animals should never be put in a restrainer unless there is someone to carry out the intended procedure immediately. Likewise, if there is any delay animals should be released from the restrainer as soon as possible. The operator must have easy access to any controls that release the animal.
Next: Methods