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The effect of mating sows in the early oestrus period on duration and timing of ovulation

Published online by Cambridge University Press:  05 November 2021

A. Dawson ,
R.L. Pitt ,
S.J. Ward ,
M.J. Warren ,
N.D. Cameron  and
A.R. Peters
A. Dawson
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire EN6 1NB
R.L. Pitt
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire EN6 1NB
S.J. Ward
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire EN6 1NB
M.J. Warren
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire EN6 1NB
N.D. Cameron
Affiliation:
Roslin Institute, Roslin, Midlothian EH25 9PS
A.R. Peters
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire EN6 1NB
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Extract

The duration of ovulation in pigs may contribute to embryo mortality, as later ovulated ova, which become the least mature embryos, are unable to contend with the changing uterine environment (Pope, 1992). The shorter ovulation of spontaneously ovulating sows, which were mated, compared to induced sows, which were not mated (Soede et al, 1992), suggested that the mating itself may reduce the length of ovulation. The current study determined the effect of mating in the early oestrus period on both the timing and duration in recendy weaned, spontaneously ovulating sows.

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Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 81
Copyright
Copyright © British Society of Animal Science 1997

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References

Pope, W.F. 1992. Embryogenesis recapitulates oogenesis in swine. Proceedings of the Society for Experimental Biology and Medicine 199: 273–281 CrossRefGoogle ScholarPubMed
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