There is a notice on the dairy shelf down our local farm shop saying that none of the dairy products they stock come from cows that have been force fed the Bovaer supplement. The one that's meant to be harmless but is killing cows We were so pleased that someone is doing something about this and bought a bottle of gold top
Back in the 1980s, before the Normans invaded England, I worked for a few years for a chemical company that was making feed additives for dairy cows. I lost a lot of illusions. I quit my job when they announced a transfer of everyone from Rochester NY to East Tennessee. I couldn't find a job, and went back to school for another degree. I won't name names or the products, but I thought they were snake oil salesmen. The corporation closed that program shortly after I quit. They feed a lot of weird things to cows.