The Different Types of Bacteria

The cows eat the grass to feed the microbes in their room. Once this population gets big enough, they will digest the microbes and sub protein that they get. The nitrogen that is essential for protein comes from the grass, but it needs the bacteria as well. And do they have four stomachs? Was my memory right on that? Yeah,. It's more so four chambers, I suppose you call it, but it's mainly the room and the main front one, which is a massive... Tens? That's their main fermenting chamber.