you might consider have a crew to ensure the safety of your models.
pigs can become a little ... dangerous.

you might spend a little time observing the process before you sign the papers

all animals are completely freaked out by the time they get to a slaughterhouse. i don't think you are going to get near them, right ?

the ambiance of an abattoir is an acquired taste.
many folks, not having a farmer's upbringing,
exhibit a quality similar to acute sea-sickness.

good luck