While that's true, the hypothesis in the paper is consistent with feeding antibiotics to livestock to improve their feed conversion ratio by decreasing the dive

While that's true, the hypothesis in the paper is consistent with feeding antibiotics to livestock to improve their feed conversion ratio by decreasing the diversity of bacteria in their microbiomes [0, 1]. [0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1804117/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1804117/ [1] https://en.wikipedia.org/wiki/Antibiotic_use_in_livestock https://en.wikipedia.org/wiki/Antibiotic_use_in_livestock