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Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep

Infusion of salts of short-chain fatty acids into the rumen of sheep depresses food intake but the relative importance of the effect of the acids and of osmolality are not fully understood. Three experiments were carried out in which sodium acetate (NaAc) and sodium chloride (NaCl) were infused for...

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Main Authors: Engku Ahmed, Engku Azahan, Forbes, J. M.
Format: Article
Language:English
English
Published: Elsevier Ltd. 2005
Online Access:http://psasir.upm.edu.my/id/eprint/7875/1/Effects%20of%20intraruminal%20infusions%20of%20sodium%20salts%20on%20selection%20of%20hay%20and%20concentrate%20foods%20by%20sheep.pdf
http://psasir.upm.edu.my/id/eprint/7875/
http://dx.doi.org/10.1016/0195-6663(92)90191-8
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spelling my.upm.eprints.78752015-09-15T02:28:08Z http://psasir.upm.edu.my/id/eprint/7875/ Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep Engku Ahmed, Engku Azahan Forbes, J. M. Infusion of salts of short-chain fatty acids into the rumen of sheep depresses food intake but the relative importance of the effect of the acids and of osmolality are not fully understood. Three experiments were carried out in which sodium acetate (NaAc) and sodium chloride (NaCl) were infused for 3 h at 4 m /min and compared with water controls. The effects on the intakes of a concentrate food and hay were examined to study the effect of osmotic and acid manipulation of the rumen on dietary choice. In the first experiment the foods were continuously available while in the second and third the foods were given for 3 min at 1.5-h intervals. Salt infusions depressed concentrate intake without significant effect on the intake of hay. The effect of NaAc tended to be greater than that of NaCl and persisted after the end of infusion. The weight of concentrate eaten during the 3-min tests was significantly and negatively related to both acetate and sodium concentrations in rumen fluid. The weight of hay eaten was negatively related to concentrate intake. The results demonstrate that the treatments imposed had a differential effect on intake, only depressing that of the concentrate food. They also suggest that, as NaAc has a greater effect than NaCl, the influence on feeding is due both to the osmotic load and the acid effect. Elsevier Ltd. 2005-01-27 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7875/1/Effects%20of%20intraruminal%20infusions%20of%20sodium%20salts%20on%20selection%20of%20hay%20and%20concentrate%20foods%20by%20sheep.pdf Engku Ahmed, Engku Azahan and Forbes, J. M. (2005) Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep. Appetite, 18 (2). pp. 143-154. ISSN 0195-6663 http://dx.doi.org/10.1016/0195-6663(92)90191-8 10.1016/0195-6663(92)90191-8 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Infusion of salts of short-chain fatty acids into the rumen of sheep depresses food intake but the relative importance of the effect of the acids and of osmolality are not fully understood. Three experiments were carried out in which sodium acetate (NaAc) and sodium chloride (NaCl) were infused for 3 h at 4 m /min and compared with water controls. The effects on the intakes of a concentrate food and hay were examined to study the effect of osmotic and acid manipulation of the rumen on dietary choice. In the first experiment the foods were continuously available while in the second and third the foods were given for 3 min at 1.5-h intervals. Salt infusions depressed concentrate intake without significant effect on the intake of hay. The effect of NaAc tended to be greater than that of NaCl and persisted after the end of infusion. The weight of concentrate eaten during the 3-min tests was significantly and negatively related to both acetate and sodium concentrations in rumen fluid. The weight of hay eaten was negatively related to concentrate intake. The results demonstrate that the treatments imposed had a differential effect on intake, only depressing that of the concentrate food. They also suggest that, as NaAc has a greater effect than NaCl, the influence on feeding is due both to the osmotic load and the acid effect.
format Article
author Engku Ahmed, Engku Azahan
Forbes, J. M.
spellingShingle Engku Ahmed, Engku Azahan
Forbes, J. M.
Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
author_facet Engku Ahmed, Engku Azahan
Forbes, J. M.
author_sort Engku Ahmed, Engku Azahan
title Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
title_short Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
title_full Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
title_fullStr Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
title_full_unstemmed Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
title_sort effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep
publisher Elsevier Ltd.
publishDate 2005
url http://psasir.upm.edu.my/id/eprint/7875/1/Effects%20of%20intraruminal%20infusions%20of%20sodium%20salts%20on%20selection%20of%20hay%20and%20concentrate%20foods%20by%20sheep.pdf
http://psasir.upm.edu.my/id/eprint/7875/
http://dx.doi.org/10.1016/0195-6663(92)90191-8
_version_ 1643823852826918912
score 13.211869

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