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The induction and synchronization of parturition in sows treated with I.C.I. 79,939, an analogue of prostaglandin F2x

Published online by Cambridge University Press:  27 March 2009

R. W. Ash  and
R. B. Heap
R. W. Ash
Affiliation:
A.R.C. Institute of Animal Physiology, Babraham, Cambridge
R. B. Heap
Affiliation:
A.R.C. Institute of Animal Physiology, Babraham, Cambridge
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Summary

I.C.I. 79,939, a potent analogue of prostaglandin F2a, was used to induce and synchronize parturition in seven gilts and three sows. A total dose of up to 750 μg injected intra-muscularly during a treatment period of about 24 h on days 109–111 of gestation induced parturition approximately 26 h after the start of treatment. The length of gestation, which was 114 ± 0·2 days in 147 normal untreated pigs, was significantly reduced to 111 ± 0·2 days (P < 0·01) in ten pigs in the same herd treated with I.C.I. 79,939. In this trial, no side-effects were detected, the average birth and 3-week weights of piglets were within the normal range, and sows usually returned to normal oestrus within a week after weaning.

Type
Short Notes
Information
The Journal of Agricultural Science , Volume 81 , Issue 2 , October 1973 , pp. 365 - 368
Copyright
Copyright © Cambridge University Press 1973

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References

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