Effect of Body Condition and Floor Material on Sow Performance
作者： L. J. Johnston , D. E. Orr , L. F. Tribble , J. R. Clark
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摘要: Fifty-three crossbred sows were used to determine the effects of body condition at weaning and floor material in the farrowing house on sow lactation and rebreeding performance. From d 110 of gestation until weaning, sows were offered 12.5 or 16.0 Mcal metabolizable energy daily. Litter weight at weaning (P>. 5), sow weaning weight (P>. 8) and parity of the sow (P>. 1) had no effect on the number of days from weaning to first estrus. Sow backfat depth at weaning was not related (P>. 15) to the rebreeding interval length when the …
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