- You are here:
- Green Car News >
Let's just get this out of the way first. EWWWWW (not ewe)! OK, done. I'm not entirely sure what "rumen fluid" is, but I already don't like the sound of it. Apparently, it is fluid from the largest chamber of a cow stomach. Reseachers at Ohio State are using the "microbe-rich" fluid, which is ...