High-performing farms exploit reproductive potential of high and low prolific sows better than low-performing farms

Porcine Health Management
Satomi TaniYuzo Koketsu

Abstract

Our objective was to examine the impact of farm effects and sow potential on various aspects of sow performance. We examined the interaction between sow prolificacy groups categorized at parity 1 and farm productivity groups for reproductive performance across parities, and lifetime performance. Data included 419,290 service records of 85,096 sows, on 98 Spanish farms, from first-service as gilts to removal, that were served between 2008 and 2013. Farms were categorized into three productivity groups based on the upper and lower 25th percentiles of the farm means of annualized lifetime piglets weaned per sow over the 6 years: high-performing (HP), intermediate-performing (IP), and low-performing (LP) farms. Also, parity 1 sows were categorized into three groups based on the upper and lower 10th percentiles of piglets born alive (PBA) as follows: 15 piglets or more (H-prolific), 8 to 14 piglets, and 7 piglets or fewer (L-prolific). The farm groups represent farm effects, whereas the sow groups represent sow potential. Linear mixed effects models were performed with factorial arrangements and repeated measures. Mean parity at removal (4.8 ± 0.01) was not associated with three farm productivity groups (P = 0.43). However, HP farms...Continue Reading

References

May 18, 1999·Journal of Animal Science·D W SteverinkB Kemp
Feb 11, 2000·Journal of the American Veterinary Medical Association·Y Koketsu
Jul 12, 2012·Reproduction, Fertility, and Development·M J BertoldoC G Grupen
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Oct 31, 2013·Advances in Experimental Medicine and Biology·Robert V Knox
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Jan 27, 2016·Journal of Animal Science·J L ValletD J Nonneman
May 3, 2016·Journal of Animal Science·I DeclerckD Maes

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Citations

Dec 1, 2019·Journal of Animal Science·Dominiek G D MaesIlias Kyriazakis

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Software Mentioned

SAS
PigCHAMP

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