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Effects of gastrointestinal cannulation and jugular vein catheterization on the metabolism of sheep

Published online by Cambridge University Press:  09 March 2007

J. C. Macrae ,
J. S. Smith  and
F. White
J. C. Macrae
Affiliation:
Rowett Research Institute, Greenburn Road, Bucksburn, Aberdeen AB2 9SB
J. S. Smith
Affiliation:
Rowett Research Institute, Greenburn Road, Bucksburn, Aberdeen AB2 9SB
F. White
Affiliation:
Rowett Research Institute, Greenburn Road, Bucksburn, Aberdeen AB2 9SB
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Abstract

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1. Certain digestive and metabolic criteria were examined in mature wethers before and following (1) a simple exploratory laporotomy (two sheep), (2) establishment of a rumen cannula plus simple (‘T’-shaped) cannulas in the duodenum and ileum (six sheep), (3) establishment of a rumen cannula plus two cannulas in the caecum (four sheep), (4) establishment of a rumen cannula plus re-entrant cannulus in the duodenum and ileum (four sheep) and (5) insertion of catheters into both external jugular veins (four sheep).

2. Metabolizability of a standard ration and nitrogen balance and rumen retention time of the sheep were not significantly changed by any of the surgical procedures carried out.

3. The amount of heat produced per unit metabolic weight of the sheep prepared with re-entrant cannulas increased significantly (21±5·6%; P < 0·001).

4. The use of the different preparations in digestive and metabolic studies is discussed.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 47 , Issue 3 , May 1982 , pp. 637 - 644
Copyright
Copyright © The Nutrition Society 1982

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