2011•Animal husbandry and feed scienceRequires access

Effect of Fetal Times on the Farrowing Performance of Sows

Bing Zhang

Abstract

According to the production records from some pig farm in Fujian,the litter size,the number of live litter,etc.of 3 588 litter Yorkshire,Landrace and Duroc purebred sows were analyzed by using SPSS software.Results showed that in Yorkshire,Landrace and Duroc purebred sows,fetal times had significant effect on litter size and number of live litter(P0.01),among them the highest average litter size and the highest average number of live litter both appeared at 6th fetal,respectively for 11.44 and 10.26;while the least of them both appeared at 1st fetal,respectively for 9.49 and 8.56.

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Key concepts: Purebred, Litter, Biology, Animal science, Pig breeding, Veterinary medicine, Crossbreed, Medicine