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n. pl. ab·o·ma·sa (-sə)
The fourth division of the stomach in ruminant animals, such as cows, sheep, and deer, in which digestion takes place.

[New Latin abomāsum : Latin ab-, ab- + Latin omāsum, tripe; see omasum.]

ab′o·ma′sal (-səl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Zoology) of or relating to the abomasum
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.abomasal - relating to the abomasum (the fourth compartment of the stomach of ruminants)abomasal - relating to the abomasum (the fourth compartment of the stomach of ruminants)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Five ruminally and abomasally fistulated Holstein x Zebu steers, averaging 296 [+ or -] 14 kg of BW, were used in a 5x5 Latin square design.
In one trial, in which transition dairy cows were abomasally infused with 1,500 grams of glucose per day (Larson and Kristensen, 2009) milk yield increased during early lactation.
In general, no significant differences (p>0.05) were found in feed and energy intake among the three groups infused either ruminally or abomasally (Table 3).
Intestinal starch disappearance in steers abomasally infused with starch and protein.
In accordance, data of a recent study with dairy cows abomasally infused with labeled 18:1111 revealed that approximately 80% of 18:2c9t11 in the milk fat resulted from desaturation of 18:1 t11 in the mammary gland (Mosley et al., 2006).
Combining data of 7 studies in which lactating dairy cows were abomasally infused with 18:2t10c12 de Veth et al.
However, the DM and OM intake of total diet and basal roughage were not significantly different (p>0.05) from those of animals supplemented with sucrose abomasally. The intakes of DM and OM of diet and basal roughage of animals on the control diet ([E.sub.0]) and those supplemented abomasally ([E.sub.A]) were not different (p>0.05).
To define relations between intestinal carbohydrate supply and pancreatic enzyme secretion, Walker and Harmon (1995) infused steers fitted with pancreatic cannulas either ruminally or abomasally with a partially hydrolyzed starch solution.
Short-term studies confirmed that abomasally infusing supplemental CLA caused milk fat depression (Chouinard et al., 1999b).