AP BIOLOGY

Detailed explanation-1: -The ruminant stomach has 4 compartments: 1) rumen, 2) reticulum, 3) omasum, and 4) abomasum (Van Soest, 1994). Pregastric fermentation and breakdown of feeds occurs in the rumen, reticulum, and omasum, whereas the abomasum is the true stomach and is similar in structure and function to the non-ruminant stomach.

Detailed explanation-2: -Abomasum. The abomasum, often called the ‘true stomach, ’ is the last part of the ruminant stomach. It is called this because it functions most similarly to non-ruminant stomachs.

Detailed explanation-3: -The abomasum is the “true stomach” of a ruminant. It is the compartment that is most similar to a stomach in a nonruminant.

Detailed explanation-4: -The ruminant stomach has four compartments: rumen, reticulum, omasum, and abomasum. The abomasum is the true stomach where the cow’s own enzymes and acids break down the ingested feed.

Detailed explanation-5: -The abomasum, also known as the maw, rennet-bag, or reed tripe, is the fourth and final stomach compartment in ruminants. It secretes rennet, which is used in cheese creation.