Rumination in action!

Before cows ruminate, they must first eat some food… hay, pasture, forage (leaves, stalks, etc).

 

Actually, cattle have one stomach with four compartments.

4 different compartments

Cow Stomach with 4 compartments

They are the rumenreticulumomasum, and abomasum, with the rumen being the largest compartment.The reticulum, the smallest compartment, is known as the “honeycomb”.

Cattle sometimes consume metal objects which are deposited in the reticulum and irritation from the metal objects causes hardware disease.

The omasum’s main function is to absorb water and nutrients from the digestible feed. The omasum is known as the “many plies”.

The abomasum is like the human stomach; this is why it is known as the “true stomach”.

Cattle are ruminants, meaning that they have a digestive system that allows use of otherwise indigestible foods by regurgitating and rechewing them as “cud”. The cud is then reswallowed and further digested by specialisedmicroorganisms in the rumen. These microbes are primarily responsible for decomposing cellulose and other carbohydrates into volatile fatty acids that cattle use as their primary metabolic fuel.

The microbes inside the rumen are also able to synthesize amino acids from non-protein nitrogenous sources, such as urea and ammonia. As these microbes reproduce in the rumen, older generations die and their carcasses continue on through the digestive tract. These carcasses are then partially digested by the cattle, allowing them to gain a high quality protein source.

These features allow cattle to thrive on grassesand other vegetation.

%d bloggers like this: