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A note on the effect on sow productivity of methallibure administration following a 10-day lactation

Published online by Cambridge University Press:  02 September 2010

N. Walker  and
S. M. Eddie
N. Walker
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down
S. M. Eddie
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down
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Summary

Female pigs (sows) which had lactated for about 10 days were allocated at random either to a control group or to a group given 75 mg methallibure per day for 5 consecutive days, followed by an intramuscular injection of 1000 IU PMSG. All sows were mated as soon as they came into oestrus and again 24 hr later. Nineteen out of 21 treated sows exhibited a controlled oestrus 9·4 + 0·25 days after weaning, compared with 21 out of 23 control sows in 8·2 + 0·64 days. Fourteen treated and 17 control sows conceived at that oestrus resulting in total pigs born per litter of 9·4 and 9·9 respectively. None of these differences was statistically significant.

Type
Research Article
Information
Animal Production , Volume 20 , Issue 2 , April 1975 , pp. 303 - 305
Copyright
Copyright © British Society of Animal Science 1975

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References

Aumaitre, A. and Rettagliati, J. 1972. [Weaning age of piglets. Effects on sow productivity and performance of piglets.] Joumees Rech. Porcine en France, Paris, 1972: 273–286.Google Scholar
Polge, C., Day, B. N. and Groves, T. W. 1968. Synchronisation of ovulation and artificial insemination in pigs. Vet. Rec. 83: 136–142.CrossRefGoogle ScholarPubMed
Snedecor, G. W. 1956. Statistical Methods, 5th ed. Iowa State College Press, Ames, la.Google Scholar
Van Der Hyde, H. 1972. A practical assessment of early weaning. Proc. Br. Soc. Anim. Prod. (New Series) 1: 33–36.Google Scholar
Walker, N. and Eddie, S. M. 1974. The effect on sow productivity of oestrus suppression following a 2-day lactation. Anim. Prod. 18: 153–158.Google Scholar
Withers Green, C. 1973. The commercial application of an early weaning system. In The Improvement of Sow Productivity. Occ. Publ. Rowett Res. Inst. No. 3.Google Scholar