What does the cow chew after regurgitation?

After a cow regurgitates food, it chews it again in a process called rumination. This is how cows break down tough plant matter and extract nutrients.

Here's a breakdown:

1. Regurgitation: The cow brings partially digested food from the rumen (first stomach chamber) back up to its mouth.

2. Chewing: The cow chews the food thoroughly, breaking it down into smaller particles and mixing it with saliva.

3. Re-swallowing: The chewed food is then swallowed again and passes back into the rumen.

This process of rumination can continue for hours, helping the cow extract maximum nutrients from its diet.