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Prediction and manipulation of weaning to ovulation interval in the sow

Published online by Cambridge University Press:  20 November 2017

N.S. Prathalingam ,
S.A. Edwards ,
F.M. Davidson ,
W. Healey ,
L. Prieto ,
A. Tarongi  and
P.R. English
N.S. Prathalingam
Affiliation:
Scottish Agriculture College, Craibstone Estate, Bucksburn, Aberdeen, AB21 9YA A. Simmers Ltd., Mains of Bogfechel, Whiterashes, Aberdeen, AB2 0QU
S.A. Edwards
Affiliation:
Scottish Agriculture College, Craibstone Estate, Bucksburn, Aberdeen, AB21 9YA
F.M. Davidson
Affiliation:
A. Simmers Ltd., Mains of Bogfechel, Whiterashes, Aberdeen, AB2 0QU
W. Healey
Affiliation:
A. Simmers Ltd., Mains of Bogfechel, Whiterashes, Aberdeen, AB2 0QU
L. Prieto
Affiliation:
Scottish Agriculture College, Craibstone Estate, Bucksburn, Aberdeen, AB21 9YA Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB9 1UD
A. Tarongi
Affiliation:
Scottish Agriculture College, Craibstone Estate, Bucksburn, Aberdeen, AB21 9YA Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB9 1UD
P.R. English
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB9 1UD
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Extract

There are commercial benefits in being able to predict the time of ovulation, post weaning in the sow. These include the use of a single insemination, with associated decreased AI and labour costs, and increased litter sizes resulting from the correct timing of insemination (Waberski et al., 1994). To predict the time of ovulation in the sow, a variety of potentially influential factors have to be considered. Predictability may be increased by timed administration of gonadotrophin, which has been shown to reduce the variance in the weaning to oestrus interval in multiparous sows (Lancaster et al., 1985). This experiment was designed to determine the major factors influencing the weaning to ovulation interval and to examine the effects of exogenous gonadotrophin on the length and variation of this interval.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 186
Copyright
Copyright © The British Society of Animal Science 1999

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References

Lancaster, R.T., Foxcroft, G.R., Boland, M.P., Edwards, S., Gordon, I. 1985. Fertility of sows injected with exogenous oestrodiol and/or gonadotrophins to control post weaning oestrus. Animal Reproduction Science 8: 365–373.CrossRefGoogle Scholar
Waberski, D., Weitze, K.F., Lietman, C., Lubbert zur Lage, W., Bortolozzo, F.P., Willmen, T., Petzoldt, R. 1994. The initial fertilising capacity of long-term-stored liquid boar semen pre and post ovulatory insemination. Theriogenology 47: 1367–1377.CrossRefGoogle Scholar