>This isn't what the antibiotics are for. They increase growth. We don't know why. I think it’s more along the lines of this: 1. Cows evolved to eat low star

>This isn't what the antibiotics are for. They increase growth. We don't know why. I think it’s more along the lines of this: 1. Cows evolved to eat low starch and high fiber grass; 2. We feed them corn and grain based diets that speed up growth but result in certain illnesses (rumen a layer of slime which traps gas they normally release and liver failure both which can lead to death); 3. Antibiotics are mixed in with corn and grain based feeds which help with both those issues (gas/bloating and liver failure). I have never seen a study showing antibiotics lead to accelerated growth where a cow doesn’t also eat a corn/grain based feed. More detail explanation here (not a study): https://www.google.com/amp/s/paleopersonaltrainer.wordpress.com/2012/12/19/what-exactly-happens-when-cows-eat-corn/amp/ https://www.google.com/amp/s/paleopersonaltrainer.wordpress....