There is a nice article by Katherine Wu on the history of antibiotic usage in livestock that is worth a look: A Taste of Our Own Medicine – I Contain Multitudes – Medium
This is part of the HHMI/Tangled Bank Studio’s series on “I Contain Multitudes” based on Ed Yong’s book of the same name. It is a good book but the HHMI / Tangled Bank Studios series really makes it come to life.