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The associations between weaning-to-oestrus interval and sow efficiency






Swine Health and Production 1(4): 10-15

The associations between weaning-to-oestrus interval and sow efficiency

In a retrospective study, farrowing rate, litter size and an index of the 2 traits (number of pigs produced per mated were investigated in (1) 2800 sows in a single herd in Australia over a 3-year period, and (2) for 22 715 litters produced over a 5-year period by 112 herds in Canada. Performance for all 3 traits was poorer (a 30% lower index) when sows were mated 7-10 days postweaning than when mated 3-6 or 11-14 days postweaning.

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Accession: 002709992



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