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Changes in propionate and glucose metabolism during synchronization of oestrus in ewes

Published online by Cambridge University Press:  27 March 2009

S. Wilson
S. Wilson
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian, EH26 0PY, Scotland
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Summary

Propionate and glucose metabolism were compared in two groups of Scottish Blackface ewes, one in which ewes had been fitted with vaginal pessaries impregnated with progesterone-analogue for the synchronization of oestrus and the other when ewes were in anoestrus. In ewes given the same amount of feed, the production rate of propionate increased significantly (P < 0·05) from 33 in anoestrous ewes to 44 gC/day in ewes with pessaries. The proportion of glucose-carbon apparently synthesized from propionate also increased significantly (P < 0·05) from 0·31 in anoestrous ewes to 0·44 in ewes with pessaries. The proportion of glucose-carbon apparently recycled was also significantly (P < 0·01) increased from 0·12 to 0·22. No changes were observed in glucose concentration, production rate or oxidation rate between the two groups of ewes.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 103 , Issue 2 , October 1984 , pp. 317 - 321
Copyright
Copyright © Cambridge University Press 1984

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