I've been talking to some representatives of the livestock industry, and I know there are different ways antibiotics are used. Sometimes they're used to treat infections. From what I understand, there are some who use them because they're using them prophylactically, or they tend to grow better. One of the claims I've heard from representatives of the livestock industry is that these are something called “ionophores”, which as a physician I've never heard of, but these are apparently some sort of antibiotic that is not related at all to the antibiotics that are for use in humans. That sounded suspicious to me. I'm glad to see you're nodding. This is not the case, from what you're saying.
On June 8th, 2016. See this statement in context.