Question

How does ingestion takes place in cow

Answer 1

When the cow first eats, it chews the food just enough to swallow it. The unchewed food travels to the first two stomachs, the rumen and the reticulum, where it is stored until later. ... The cud then goes to the third and fourth stomachs, the omasum and abomasum, where it is fully digested

Answer 2

The cow chews feed almost without any sorting, which makes her different from other animals such as pigs. After a short period of mastication, when saliva is added, the feed is swallowed in the shape of a bolus. When the cow ruminates, feed returns back to the mouth and is masticated again. Most of the reduction of feed particles occurs during the rumination process.