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Evaluation of partial weaning and treatment with PG600 at weaning in relation to subsequent reproduction in the sow.

Published online by Cambridge University Press:  21 November 2017

G. R. Foxcroft
Affiliation:
School of Agriculture, University of Nottingham, Sutton Bonington, Loughborough, Leics. LE12 5RD
P. R. English
Affiliation:
School of Agriculture, University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD
P. R. Bampton
Affiliation:
School of Agriculture, University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD
O. MacPherson
Affiliation:
School of Agriculture, University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD
M. Birnie
Affiliation:
School of Agriculture, University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD
L. J. Bark
Affiliation:
School of Agriculture, University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD
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Extract

’Partial’ or ‘split’ weaning involves the earlier weaning of part of the litter before the normal weaning date. There have been isolated reports which claim that such a practice can reduce final weaning to service and conception interval and increase the size of the subsequent litter. However, these possible effects have not been quantified adequately and accordingly a study was carried out to further evaluate this practice.

The study was conducted on a 700 sow commercial unit in Aberdeen-shire with crossbred Large White (LW) x Landrace (LR) sows mated to LW, LR or LW x LR boars. Sows and litters were accomodated in conventional farrowing pens and weaning took place when litters averaged 17 days of age. Following weaning, sows were transferred to dry sow stalls adjacent to boar pens. Newly weaned pigs were transferred to flat-deck nursery accomodation.

Type
Sow Performance
Copyright
Copyright © The British Society of Animal Production 1987

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