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The effects of dietary fibre and puberty induction method on ovarian activity of gilts

Published online by Cambridge University Press:  05 November 2021

V L Glasgow ,
A H Stewart  and
S A Edwards
V L Glasgow
Affiliation:
SAC Aberdeen, Craibstone Estate, Bucksburn, Aberdeen AB2 9YA, United Kingdom
A H Stewart
Affiliation:
SAC Aberdeen, Craibstone Estate, Bucksburn, Aberdeen AB2 9YA, United Kingdom
S A Edwards
Affiliation:
SAC Aberdeen, Craibstone Estate, Bucksburn, Aberdeen AB2 9YA, United Kingdom
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Extract

In commercial systems it is highly desirable that gilts are synchronised into a predictable first heat. The use of PMSG/hCG injections (PG 600) has met with some success inducing a synchronised fertile oestrus and slightly increased ovulation rate (Schilling and Cerne, 1972) in gilts and anoestrus sows. Diets containing a high proportion of dietary fibre may influence litter size in gilts (Stewart et al, 1995). The aim of this study was to determine the effect of a high level of dietary fibre on oestrus expression and ovulation rate of gilts synchronised with exogenous gonadotrophins (PG600) or given daily boar stimulus.

Type
Pig Nutrition
Information
Proceedings of the British Society of Animal Science , Volume 1996 , March 1996 , pp. 145
Copyright
Copyright © The British Society of Animal Science 1996

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References

Schilling, E and Cerne, F. 1972. Induction and synchronisation of oestrus in prepubertal gilts and anoestrus sows by a PMSG/hCG compound. The veterinary record. Nov 11. pages 471–474.10.1136/vr.91.20.471CrossRefGoogle Scholar
Stewart, A.H., Edwards, S.A. and Fowler, V.R., 1995. The effects of nutrition on reproductive performance, lactation and carcass quality in once bred gilts. Journal of Animal Science 60:559.Google Scholar