Process of Nutrition in Cow:

Ingestion:
- Cows consume large amounts of grass, hay, and grains as their primary food sources.
- The process of ingestion involves the cow using its tongue to grab food and chew it with its powerful molars.

Digestion:

Rumen:
- The food enters the cow's rumen, the first compartment of its stomach, where it is mixed with saliva and bacteria.
- In the rumen, the food undergoes fermentation by the bacteria, breaking down cellulose into smaller molecules.

Reticulum:
- The partially digested food then moves to the reticulum, where it is formed into small balls called cud.
- The cow regurgitates the cud and chews it again to further break down the food particles.

Omasum:
- The cud then moves to the omasum, where water is absorbed and the cud is further broken down.

Abomasum:
- Finally, the cud moves to the abomasum, which is similar to a human stomach, where digestive enzymes break down proteins, carbohydrates, and fats.

Small Intestine:
- The digested food then moves to the small intestine where nutrients are absorbed into the bloodstream.

Large Intestine:
- Any remaining undigested food passes to the large intestine where water is absorbed and waste products are formed.

Excretion:
- The waste products are then expelled from the cow's body through the anus as feces.