[待更新] A cow's natural lifespan is about 25 years, but cows used by the dairy industry are killed after only four or five years. An industry study reports that by the time they are killed, nearly 40 percent of dairy cows are lame because of the intensive confinement, the filth, and the strain of being almost constantly pregnant and giving milk.nimal welfare.) According to the U.S. Department of Agriculture, 16.5 percent of cows used for thei...
