Remarkably, by one estimate some 70 percent of the antibiotics used in the developed world are given to farm animals, often routinely in stock feed, simply to promote growth or as a precaution against infection.

值得注意的是，据一项估计，在发达世界使用的抗生素当中，有大约70%往往经常用于饲料中，只是为了促进生长或作为对付感染的预防措施。