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The ruminant digestive system. The abomasum, also known as the maw, [1] rennet-bag, [1] or reed tripe, [1] is the fourth and final stomach compartment in ruminants. It secretes rennet, which is used in cheese creation. The word abomasum (ab-"away from" + omasum "intestine of an ox") is from Neo-Latin and it was first used in English in 1706.
As cattle are ruminants, which have a 4 chambered stomach composed of a rumen, reticulum, omasum and abomasum. Ruminants require this specialized digestive system in order to properly process and break down their high fiber and cellulose rich diets. As this type of digestive system is quite complex it is at a greater risk for incidence.
After this, the digesta is moved to the true stomach, the abomasum. This is the gastric compartment of the ruminant stomach. The abomasum is the direct equivalent of the monogastric stomach, and digesta is digested here in much the same way. This compartment releases acids and enzymes that further digest the material passing through.
A cannula in a cow's side. A cannulated cow or fistulated cow refers to a cow that has been surgically fitted with a cannula. [1] A cannula acts as a porthole-like device that allows access to the rumen of a cow, to perform research and analysis of the digestive system and to allow veterinarians to transplant rumen contents from one cow to another.
The ruminant digestive system. The omasum, also known as the bible, [1] the fardel, [1] the manyplies [1] and the psalterium, [1] is the third compartment of the stomach in ruminants. The omasum comes after the rumen and reticulum and before the abomasum. Different ruminants have different omasum structures and function based on the food that ...
In a mature cow, the reticulum can hold around 5 gallons of liquid. The rumen and reticulum are very close in structure and function and can be considered as one organ. They are separated only by a muscular fold of tissue. In immature ruminants, a reticular groove is formed by the muscular fold of the reticulum.
Cud is a portion of food that returns from a ruminant's stomach to the mouth to be chewed for the second time. More precisely, it is a bolus of semi-degraded food regurgitated from the reticulorumen of a ruminant. Cud is produced during the physical digestive process of rumination. [1]
The rumen, also known as a paunch, is the largest stomach compartment in ruminants. [1] The rumen and the reticulum make up the reticulorumen in ruminant animals. [2]The diverse microbial communities in the rumen allows it to serve as the primary site for microbial fermentation of ingested feed, which is often fiber-rich roughage typically indigestible by mammalian digestive systems.