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Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach

Andreas Tshuor and Marcus Clauss UGent (2008) EUROPEAN JOURNAL OF WILDLIFE RESEARCH. 54(4). p.627-633
abstract
The degree of stratification in the reticulorumen contents is considered a major explanatory factor for other morphological and physiological differences between ruminant feeding types. However, information on reticulorumen (RR) contents is usually gathered from dead animals or indirect such as passage kinetics. We hypothesized that, although the contents of the gastrointestinal tract can usually not be evaluated by ultrasonography, the three typical layers of stratified RR contents (gas dome, fibre mat, fluid) can be demonstrated by this technique. In three domestic cows, the gas dome in the cows' rumens could be demonstrated sonographically by reverberation lines running in parallel to the line demarcating the rumen mucosa, as is typical for the sonographic image of large, gas-filled spaces. More ventrally, the area behind the rumen mucosa showed typical pattern indicating gaseous inclusions, corresponding to the fibre mat inside the rumen. Further ventrally, in two of the animals, the area behind the demarcation line appeared dark without reverberation lines, as is typical for large fluid-filled spaces. When the technique was applied to a captive, habituated, browse-fed moose, no gas dome could be demonstrated, supporting the hypothesis that the reticulorumen contents of browsers are less stratified. The results of this study indicate that sonography represents a useful tool for the demonstration of RR contents stratification in live animals.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
grazer, browser, stratification, digestive physiology, gas, DEER CAPREOLUS-CAPREOLUS, WAPITI CERVUS-ELAPHUS, MOOSE ALCES-ALCES, PARTICLE RETENTION, TRAUMATIC RETICULOPERITONITIS, SMALL-INTESTINE, FEEDLOT BLOAT, COWS, CATTLE, FLUID
journal title
EUROPEAN JOURNAL OF WILDLIFE RESEARCH
Eur. J. Wildl. Res.
volume
54
issue
4
pages
627 - 633
Web of Science type
Article
Web of Science id
000259414300010
JCR category
ZOOLOGY
JCR impact factor
1.543 (2008)
JCR rank
35/124 (2008)
JCR quartile
2 (2008)
ISSN
1612-4642
DOI
10.1007/s10344-008-0188-5
language
English
UGent publication?
no
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
670107
handle
http://hdl.handle.net/1854/LU-670107
date created
2009-05-28 10:39:10
date last changed
2009-09-22 11:26:35
@article{670107,
  abstract     = {The degree of stratification in the reticulorumen contents is considered a major explanatory factor for other morphological and physiological differences between ruminant feeding types. However, information on reticulorumen (RR) contents is usually gathered from dead animals or indirect such as passage kinetics. We hypothesized that, although the contents of the gastrointestinal tract can usually not be evaluated by ultrasonography, the three typical layers of stratified RR contents (gas dome, fibre mat, fluid) can be demonstrated by this technique. In three domestic cows, the gas dome in the cows' rumens could be demonstrated sonographically by reverberation lines running in parallel to the line demarcating the rumen mucosa, as is typical for the sonographic image of large, gas-filled spaces. More ventrally, the area behind the rumen mucosa showed typical pattern indicating gaseous inclusions, corresponding to the fibre mat inside the rumen. Further ventrally, in two of the animals, the area behind the demarcation line appeared dark without reverberation lines, as is typical for large fluid-filled spaces. When the technique was applied to a captive, habituated, browse-fed moose, no gas dome could be demonstrated, supporting the hypothesis that the reticulorumen contents of browsers are less stratified. The results of this study indicate that sonography represents a useful tool for the demonstration of RR contents stratification in live animals.},
  author       = {Tshuor, Andreas and Clauss, Marcus},
  issn         = {1612-4642},
  journal      = {EUROPEAN JOURNAL OF WILDLIFE RESEARCH},
  keyword      = {grazer,browser,stratification,digestive physiology,gas,DEER CAPREOLUS-CAPREOLUS,WAPITI CERVUS-ELAPHUS,MOOSE ALCES-ALCES,PARTICLE RETENTION,TRAUMATIC RETICULOPERITONITIS,SMALL-INTESTINE,FEEDLOT BLOAT,COWS,CATTLE,FLUID},
  language     = {eng},
  number       = {4},
  pages        = {627--633},
  title        = {Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach},
  url          = {http://dx.doi.org/10.1007/s10344-008-0188-5},
  volume       = {54},
  year         = {2008},
}

Chicago
Tshuor, Andreas, and Marcus Clauss. 2008. “Investigations on the Stratification of Forestomach Contents in Ruminants: An Ultrasonographic Approach.” European Journal of Wildlife Research 54 (4): 627–633.
APA
Tshuor, A., & Clauss, M. (2008). Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach. EUROPEAN JOURNAL OF WILDLIFE RESEARCH, 54(4), 627–633.
Vancouver
1.
Tshuor A, Clauss M. Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach. EUROPEAN JOURNAL OF WILDLIFE RESEARCH. 2008;54(4):627–33.
MLA
Tshuor, Andreas, and Marcus Clauss. “Investigations on the Stratification of Forestomach Contents in Ruminants: An Ultrasonographic Approach.” EUROPEAN JOURNAL OF WILDLIFE RESEARCH 54.4 (2008): 627–633. Print.