Male calves used for veal are taken away from their mothers only a few days after they are born. They are then chained into stalls not even wide enough for them to turn around in. The floor of these stalls are slated which cause the calf severe pain. They are fed artificial milk laced with drugs that keeps their flesh tender and pale but keeps them anemic and weak because of lack of iron in their diet. They are killed after only 16 weeks.
Sows get immense physical strain of being kept constantly pregnant and nursing.
They are also kept tightly packed in areas not big enough for them to even turn around in. As a result they often become very aggressive and often cannibalize each other. Pigs are also denied anesthetics. Hens used for laying eggs are kept in stacked mesh cages with little light. To keep from pecking at each other and themselves, the chickens have their beaks cut off with a hot iron, and yes you guessed it, they don't use anesthetics.