Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach
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 pass...
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ftunivgent:oai:archive.ugent.be:670107 2023-06-11T04:03:18+02:00 Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach Tshuor, Andreas Clauss, Marcus 2008 application/pdf https://biblio.ugent.be/publication/670107 http://hdl.handle.net/1854/LU-670107 https://doi.org/10.1007/s10344-008-0188-5 https://biblio.ugent.be/publication/670107/file/751550 eng eng https://biblio.ugent.be/publication/670107 http://hdl.handle.net/1854/LU-670107 http://dx.doi.org/10.1007/s10344-008-0188-5 https://biblio.ugent.be/publication/670107/file/751550 No license (in copyright) info:eu-repo/semantics/restrictedAccess EUROPEAN JOURNAL OF WILDLIFE RESEARCH ISSN: 1612-4642 Veterinary Sciences 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 journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2008 ftunivgent https://doi.org/10.1007/s10344-008-0188-5 2023-05-10T22:31:53Z 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. Article in Journal/Newspaper Alces alces Ghent University Academic Bibliography European Journal of Wildlife Research 54 4 627 633 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Veterinary Sciences 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 |
spellingShingle |
Veterinary Sciences 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 Tshuor, Andreas Clauss, Marcus Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
topic_facet |
Veterinary Sciences 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 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Tshuor, Andreas Clauss, Marcus |
author_facet |
Tshuor, Andreas Clauss, Marcus |
author_sort |
Tshuor, Andreas |
title |
Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
title_short |
Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
title_full |
Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
title_fullStr |
Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
title_full_unstemmed |
Investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
title_sort |
investigations on the stratification of forestomach contents in ruminants: an ultrasonographic approach |
publishDate |
2008 |
url |
https://biblio.ugent.be/publication/670107 http://hdl.handle.net/1854/LU-670107 https://doi.org/10.1007/s10344-008-0188-5 https://biblio.ugent.be/publication/670107/file/751550 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
EUROPEAN JOURNAL OF WILDLIFE RESEARCH ISSN: 1612-4642 |
op_relation |
https://biblio.ugent.be/publication/670107 http://hdl.handle.net/1854/LU-670107 http://dx.doi.org/10.1007/s10344-008-0188-5 https://biblio.ugent.be/publication/670107/file/751550 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s10344-008-0188-5 |
container_title |
European Journal of Wildlife Research |
container_volume |
54 |
container_issue |
4 |
container_start_page |
627 |
op_container_end_page |
633 |
_version_ |
1768378443522637824 |