omasum


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o·ma·sum

 (ō-mā′səm)
n. pl. o·ma·sa (-sə)
The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum. Also called manyplies.

[Latin omāsum, bullock's tripe, probably of Gaulish origin.]

omasum

(əʊˈmeɪsəm)
n, pl -sa (-sə)
(Zoology) another name for psalterium
[C18: from Latin: bullock's tripe]

o•ma•sum

(oʊˈmeɪ səm)

n., pl. -sa (-sə).
the third stomach of a ruminant, between the reticulum and the abomasum.
[1700–10; < New Latin; Latin omāsum ox's tripe]

o·ma·sum

(ō-mā′səm)
The third division of the stomach in ruminant animals. It removes excess water from food and further reduces the size of food particles before passing them to the abomasum for digestion by enzymes. See more at ruminant.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.omasum - the third compartment of the stomach of a ruminantomasum - the third compartment of the stomach of a ruminant
ruminant - any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartments
stomach, tum, tummy, breadbasket - an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
Translations
References in periodicals archive ?
Although approximately 30% of propionate produced in the rumen may escape into the abomasum and omasum, propionate could be completely metabolized within the post-ruminal tissues (Lobley et al.
It is the digestive organ of the pile, the artificial stomach, the second omasum of the landscape's self-renewal process.
The requirement that particles of plants be small (<1 mm) to pass from the rumenoreticulum to the omasum limits capacity of ruminants to vary rate of passage through the digestive tract according to nutritional quality of forage (Spalinger, 2000).
4), indicating major water absorption in the omasum and lower digestive tract.
Categorias Categories Componentes Jovem Superjovem Erro-padrao Components Steer Young steer Standard error P>F Rumen + reticulo, kg 8,58 5,55 0,40 0,0001 Rumien+raiculum kg Rumen+reticulo, % PCVZ 2,85 1,89 0,11 0,0001 Rumien+raiculum % EBW Omaso, kg 4,70 2,90 0,37 0,0024 Omasum, kg Omaso, % PCVZ 1,55 0,99 0,11 0,0021 Omasum, % EBW Abomaso, kg 2,37 2,07 0,25 0,4160 Abomasum, kg Abomaso, % PCVZ 0,78 0,70 0,08 0,4749 Abomasum, % EBW IDG *, kg 4,66 2,59 0,33 0,0002 Intestines, kg IDG, % PCVZ 1,54 0,90 0,11 0,0005 Intestines, % EBW TGI **, kg 20,34 13,12 0,98 0,0001 DT **, kg TGI, % PCVZ 6,73 4,48 0,27 0,0001 DT, % EBW * IDG = intestino delgado + grosso; ** TGI--Trato gastrintestinal.
OMASUM The third stomach has many layers for absorbing nutrients.
To do this they are doing experiments in small chambers, called parabiotic chambers, that use stomach tissue from sheep to simulate that of the rumen and the omasum, two of the four compartments in a cow's stomach.