Each year, 10 billion cows, pigs, chickens, sheep, and other innocent, sentient animals are caged, crowded, deprived, drugged, mutilated, and manhandled in US factory farms. They are then hauled to the slaughterhouse and killed under atrocious conditions. Nine percent (over 850 million) never make it to the slaughterhouse, dying from stress-induced diseases or injuries.

Additionally, it is estimated that more than 17 billion fish are killed for food in the United States each year.

The above is from here.