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.
Microbes in the rumen are also able to synthesize amino acids from non-protein nitrogenous sources like urea, ammonia. The microbes that die off also provide the individual cattle-beast a source of protein and energy. Cattle sometimes consume foreign objects which are deposited in the reticulum. For this reason, the reticulum is known as the hardware stomach.. The metal, if it doesn't penetrate the reticulo-rumen wall, will stay in the reticulum and break down from the cow's gastric juices.