1 the act of burning something; the burning of leaves was prohibited by a town ordinance. 2  a process in which a substance reacts with oxygen to give heat and light.  a state of violent disturbance and excitement; combustion grew until revolt was unavoidable.
It is not the cow that digests the feed but the bacteria in the rumen, which does the most of this work. The rumen contains billion bacteria and more specially, 1 mL of rumen fluid contains 10-50 billion microbes and over 1 million protozoa. These bacteria attach to the feed particles to digest the feed.UMEN (picture 1) : This is the first compartment of the cattleâs stomach and where fermentation occurs, which allows for the digestion of fiber and other feeds. This is the largest compartment of the stomach and can hold up to 50 gallons of digested feed.
In contrast, foregut fermentation is the form of cellulose digestion seen in ruminants such as cattle which have a four-chambered stomach which digests cellulose. Hindgut fermenters generally have a cecum and large intestine that are much larger and more complex than those of a foregut or midgut fermenter.Research on small cecum fermenters such as flying squirrels, rabbits and lemurs has revealed these mammals to have a GI tract about 10-13 times the length of their body.indgut fermenters are able to extract more nutrition out of small quantities of feed. The large hind-gut fermenters are bulk feeders: they ingest large quantities of low-nutrient food, which they process more rapidly than would be possible for a similarly sized foregut fermenter.