It’s not just a representation of a slaughterhouse, it’s the whole factory farming process. They exit the back end of mama pig’s pen, have their tails docked, and then get an infusion of antibiotics and hormones to make them grow.
On real farms they dock tails to stop tail biting in the pens. It gets crowded as they grow and once they start biting it could lose a farmer an entire batch because it spreads through the group and can cause bad injuries. No tail, no biting.
if there’s ever a way to check out old films/movies this was it
way back at some point there was an article demonstrating the first scifi
movie but it was like in the 1890’s or there about and would you believe it
it was about a pig’s slaughter factory