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Intravenous infusion of glucose and insulin in relation to milk secretion in the sow

Published online by Cambridge University Press:  06 August 2007

L. Reynolds  and
J. A. F. Rook
L. Reynolds
Affiliation:
Division of Agricultural Chemistry, School of Agricultural Sciences, University of Leeds, Leeds LS2 9JT
J. A. F. Rook
Affiliation:
Division of Agricultural Chemistry, School of Agricultural Sciences, University of Leeds, Leeds LS2 9JT
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Abstract

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1. A comparison was made of the composition of milk from front and rear teats in four sows. There were small and not significant differences in fat, protein and lactose contents, and in the fatty-acid composition of the milk fat with the exception of the 18:3 acid where the difference was also small but significant.

2. The effects of intravenous infusions of glucose and insulin in lactating sows on milk secretion and blood composition were investigated in two sows.

3. Intravenous infusion of glucose had no effect on blood plasma glucose concentration but increased the yields of lactose, protein and water.

4. Intravenous infusion of insulin depressed plasma glucose concentration and the yields of lactose and water. The yield of protein was unaffected.

5. It is concluded that differences between the non-ruminant (the sow) and the ruminant in the responses in milk secretion to glucose infusion may be related to differences in the sensitivity to insulin of mammary tissue.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 37 , Issue 1 , January 1977 , pp. 45 - 53
Copyright
Copyright © The Nutrition Society 1977

References

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