There’s a big problem with that position Bill, cows don’t fart, they are ruminants. I have never heard a cow fart, but horses will do it all the time. I grew up around cows and and they will bloat, lie down, and die if they are turned out on a rich, green wet food source such as alfalfa. The bloat gets so extreme they can not breath. I have saved them by making a halter with a rope tied to a stick (bit) placed across their mouth. As they chew on the bit, it helps them burp up the gas. The gas comes out the front end not the back end. Another more extreme, dire approach, which I have never used, is to take your knife and pierce the rumen in front of the hip bone to let the gas escape.
I worked in the farm supply industry for a while. We had a tool for that. It was a 10 inch long stainless steel tube, with a spike that slid in and out. You put the tube against the cows belly, punched the spike in to make a hole, pushed tube in as you pulled out the spike and the gas was released.
Last resort tool to save the cow. I can’t remember what it was called.
I grew up with cows and horses as well. We had problems when the cows would break into an area with apples and pears on the ground. We sometimes had to shove a short length of garden hose down their throats to release the gas to save them. If the trapped gas were farts I guess that we would have had to shove the hose up their butts.
Horses actually can have problems as well. We had a retired race horse named Moon Ace. He lived to be 38 years old. All of his teeth eventually fell out and he was almost completely blind. He actually still seemed to have a good life up until his long term companion a young chick horse Morning Star had to be euthanized shortly after she turned 33. He started looking a little rough after that and people were always calling animal control and claiming we had an abused animal.
Mostly because he had no teeth Moon Ace had to eat special prepared senior horse chow which he was not that excited about. One day he managed to get in with the other horses and ate a bunch of standard grain. He started bloating. We noticed fairly early that something was wrong; he had one hell of a stomach ache. But a horse's digestive system is far different than a cow's, the trapped gas could not be released with a hose and the vet was unable to save him, so he went to horsey heaven to run again in green pastures with his beloved Morning Star.