http://sorendreier.com/sickening-amount-of-antibiotics-in-meat/
It costs more, but don't buy factory farmed meat, huh? Trader Joe's has alternatives, buy specific organic brands after some research, or go veg. (When you cook as I do, the latter is EASY! And to make up for it nutritionally, we eat lots of falafels. I make the best falafel wraps on the planet. Boy, is it labour intensive to make 'em, though.)
I even posted what I do to falafels:
http://ialreadygotyasucker.blogspot.com/2015/10/personal-rant_23.html
If ya got a TJ's in the 'hood, and the time. . .