Cow stomachs are divided into four compartments. The scientists in this video are examining one of the compartments, a fermentation chamber called the rumen, Mercadante said. Researchers ...

In one particularly large chamber of the cow stomach, known as the rumen, bacteria digest plant cellulose from the grass and feed that the cow eats. The researchers speculate that because the cow ...

"But recently, lab research has shown that enzymes from Aspergillus oryzae and Aspergillus niger together might have a synergistic effect in the cow's rumen, promoting the activity of the ...