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Rate of passage of digesta in sheep

3.* Differential rates of passage of water and dry matter from the reticulo-rumen, abomasum and caecum and proximal colon

Published online by Cambridge University Press:  09 March 2007

W. L. Grovum  and
V. J. Williams
W. L. Grovum
Affiliation:
Department of Physiology, School of Rural Science, University of New England, Armidale, NSW 2351, Australia.
V. J. Williams
Affiliation:
Department of Physiology, School of Rural Science, University of New England, Armidale, NSW 2351, Australia.
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Abstract

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1. Three groups of sheep receiving 400, 800 and 1200 g lucerne chaff/d in equal hourly meals were killed. The large intestines were removed and divided into segments 15 cm long to provide information on the amounts and dry-matter contents of digesta and on the rates of passage of digesta and absorption of water along the large intestine.

2. With increasing intakes of food, increases were observed along the entire large intestine in the amounts of wet digesta present, in the transit rates of digesta and in the rates of absorption of water. The mean retention time of digesta in the large intestine decreased with increasing food intake, being 1737, 1056 and 692 min respectively.

3. Four patterns of sodium and potassium concentrations in digesta water along the large intestine were found.

Type
General Nutrition
Information
British Journal of Nutrition , Volume 30 , Issue 2 , September 1973 , pp. 231 - 240
Copyright
Copyright © The Nutrition Society 1973

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