Where does fermentation take place in a ruminant stomach

Answer 1

In a ruminant stomach, fermentation primarily takes place in the rumen. The rumen is the largest and the first chamber of the stomach, where microbes, such as bacteria, protozoa, and fungi, break down complex carbohydrates (fiber) present in the diet. These microbes ferment the fiber into volatile fatty acids (VFAs), which serve as a source of energy for the ruminant.