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Effects of Buserelin on day of service or 12 days post service on farrowing rate and litter size to first service in outdoor sows and gilts

Published online by Cambridge University Press:  20 November 2017

A.R. Peters ,
L.A. Dwyer ,
A. Dawson ,
P.A. Canham  and
J.D. Mackinnon
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 UK
L.A. Dwyer
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire, EN6 1NB UK
A. Dawson
Affiliation:
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, Boltons Park, Hawkshead Road, Potters Bar, Hertfordshire, EN6 1NB UK
P.A. Canham
Affiliation:
Stowe Veterinary Group, Bury Road, Stowmarket, Suffolk, IP4 1JF, UK
J.D. Mackinnon
Affiliation:
Stowe Veterinary Group, Bury Road, Stowmarket, Suffolk, IP4 1JF, UK
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Extract

The problem of seasonal infertility in pigs has been recognised for many years. The infertility complex can may be manifested by increased returns to service, prolonged weaning to oestrus intervals and decreased litter size. The purpose of this trial was to evaluate the effects of Buserelin treatment on fertility in sows and gilts during the seasonally infertile period.

A total of 1231 mixed parity sows and gilts from five outdoor herds in East Anglia were randomly assigned to one of three treatment groups. Any sows not presented for service at first post weaning oestrus were excluded. All sows and gilts judged to be in adequate health and condition to be kept in a commercial breeding herd were included. Group C sows and gilts were given no treatment. Group R1 sows and gilts were injected i.m. with 8μg Buserelin (2.0ml Receptal; Hoechst Roussel Vet UK Ltd) on the day of service.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 176
Copyright
Copyright © The British Society of Animal Science 1999

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