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Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets

In investigations of differences between ruminant species feeding on browse or grass, it is often unclear whether observed differences are animal‐ or forage‐specific. Ruminant species have been classified as ‘moose‐type’, with little rumen content stratification, or ‘cattle‐type’ with a distinct rum...

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Autores principales: Clauss, Marcus, Tschuor, Andreas, Codron, Daryl, Hummel, Jürgen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9788097/
https://www.ncbi.nlm.nih.gov/pubmed/34791696
http://dx.doi.org/10.1111/jpn.13663
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author Clauss, Marcus
Tschuor, Andreas
Codron, Daryl
Hummel, Jürgen
author_facet Clauss, Marcus
Tschuor, Andreas
Codron, Daryl
Hummel, Jürgen
author_sort Clauss, Marcus
collection PubMed
description In investigations of differences between ruminant species feeding on browse or grass, it is often unclear whether observed differences are animal‐ or forage‐specific. Ruminant species have been classified as ‘moose‐type’, with little rumen content stratification, or ‘cattle‐type’ with a distinct rumen contents stratification, including a gas layer. To which extent putative differences in forestomach motility are involved in these patterns is unknown. Using sonography, we investigated the frequency of reticular contractions and the stratification of rumen contents in goats fed exclusively on grass hay (n = 6) or dried browse (n = 5) directly after feeding, and after another 6 and 12 h with no access to feed. The frequency of reticular contractions decreased from immediately after feeding (1.8 ± 0.3 min(−1)) to 6 h afterwards (1.2 ± 0.2 min(−1)) and then remained constant, with no difference between diets. A gas dome became more visible over time, but neither its incidence nor its extent differed between diets. The results are in accord with classifying goats as ‘cattle‐type’ in terms of their digestive physiology, and they add to a growing body of evidence that differences in digestive physiology between ruminant species are more due to species characteristics than different kinds of ingested forages.
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spelling pubmed-97880972022-12-28 Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets Clauss, Marcus Tschuor, Andreas Codron, Daryl Hummel, Jürgen J Anim Physiol Anim Nutr (Berl) Original Articles In investigations of differences between ruminant species feeding on browse or grass, it is often unclear whether observed differences are animal‐ or forage‐specific. Ruminant species have been classified as ‘moose‐type’, with little rumen content stratification, or ‘cattle‐type’ with a distinct rumen contents stratification, including a gas layer. To which extent putative differences in forestomach motility are involved in these patterns is unknown. Using sonography, we investigated the frequency of reticular contractions and the stratification of rumen contents in goats fed exclusively on grass hay (n = 6) or dried browse (n = 5) directly after feeding, and after another 6 and 12 h with no access to feed. The frequency of reticular contractions decreased from immediately after feeding (1.8 ± 0.3 min(−1)) to 6 h afterwards (1.2 ± 0.2 min(−1)) and then remained constant, with no difference between diets. A gas dome became more visible over time, but neither its incidence nor its extent differed between diets. The results are in accord with classifying goats as ‘cattle‐type’ in terms of their digestive physiology, and they add to a growing body of evidence that differences in digestive physiology between ruminant species are more due to species characteristics than different kinds of ingested forages. John Wiley and Sons Inc. 2021-11-17 2022-11 /pmc/articles/PMC9788097/ /pubmed/34791696 http://dx.doi.org/10.1111/jpn.13663 Text en © 2021 The Authors. Journal of Animal Physiology and Animal Nutrition published by Wiley-VCH GmbH. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Original Articles
Clauss, Marcus
Tschuor, Andreas
Codron, Daryl
Hummel, Jürgen
Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title_full Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title_fullStr Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title_full_unstemmed Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title_short Reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
title_sort reticular contraction frequency and ruminal gas dome development in goats do not differ between grass and browse diets
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9788097/
https://www.ncbi.nlm.nih.gov/pubmed/34791696
http://dx.doi.org/10.1111/jpn.13663
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