They are actually back scratchers for cows. Cows can't reach their 'backs' and need to rub up against something to scratch their backs. These units are pressure activated, so when the cow pushes against it, it starts to revolve. They can then position themselves for the right scratching location.
The cow tipper is so the groomer can trim the hoofs. They sure don't like it, but the hooves can get really long and cause problems for the cow.
Now about those farts.
Farmers have until 2030 in California to reduce their fart emissions and off gas from manure to pre 2013 levels. Many dairies will be moving out of state rather than finding ways to resolve the cow farts. Of course, we can have someone walk behind the cow with a small flame to light those cow farts and reduce the methane off gassing....LOL.
Some of the farmers are fully enclosing their penned areas and will be burning small flames around to burn off the methane, like they do at old landfills that off gas methane from the decomposing trash.
Or they will leave and we can all watch our price of milk skyrocket.....just one more California legislature effort to a push every industry out of the state and then will complain when we have no tax base....
Dem legislators in this state need to take a simple business and economics class.....dumb shits.
A man staggers into the emergency room with a concussion, multiple bruises, and a five iron wrapped around his neck. Naturally the doctor asks him what happened. "Well, it was like this" said the man. "I was having a quiet round of golf with my wife, when at a difficult hole, we both sliced our balls into a pasture of cows.
We went to look for them, and while I was rooting around I noticed that one of the cows had something white in it's rear end. I walked over and lifted up the tail, and sure enough, there was a golf ball with my wife's monogram on it stuck right in the middle of the cow's butt. Thats when I made my mistake." "What did you do?", asked the doctor. "Well, I lifted the tail, pointed, and yelled to my wife, "Hey! This looks like yours!"