1, Rumen: Rumen is the first stomach of ruminants. Rumen is a natural fermentor with the strongest ability to degrade fiber substances so far. The chyme inside is divided into three layers (gas layer, dense layer and liquid layer). When ruminating, chyme regurgitates to the mouth and chews again.

2. Reticule: Reticule is located in the front of rumen. In fact, these two stomachs are not completely separated, so feed particles can move freely between them.

3, flap stomach: double flap stomach is the third stomach of ruminants. Located on the right side of the front of the abdominal cavity. Anterior reticular stomach, followed by abomasum. Many lobules of different sizes are formed on the mucosal surface, and there are no digestive glands.

4, abomasum: The stomach is attached with digestive glands, which can secrete digestive enzymes and have real digestion, so it is called true stomach, and it is also called "glandular stomach".

Extended data

Digestion principle of tripe:

In ruminants, they don't directly digest and absorb the nutrients in feed by themselves. No matter what kind of nutrients are, they must first be fermented by rumen microorganisms. The organic acids and some primary fatty acids finally produced in the fermentation process can be absorbed by rumen as their metabolic energy.

It can be said that protein, sugars and lipids of rumen microorganisms are the most important, most direct and most efficient nutrition sources for ruminants.

reference data

Baidu encyclopedia-tripe

Baidu encyclopedia-rumen

Baidu encyclopedia-net stomach

Baidu encyclopedia-flap stomach

Baidu encyclopedia-abomasum