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

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

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/0195-6663(92)90191-8

Abstract

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.

Item Type:Article
Faculty or Institute:Faculty of Veterinary Medicine
Publisher:Elsevier Ltd.
DOI Number:10.1016/0195-6663(92)90191-8
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/0195-6663(92)90191-8
ID Code:7875
Deposited By: Azizan Arshad
Deposited On:28 Sep 2010 04:30
Last Modified:28 Sep 2010 04:36

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 28 Sep 2010 04:30.

View statistics for "Effects of intraruminal infusions of sodium salts on selection of hay and concentrate foods by sheep "


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.