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Sire evaluation based on purebreds and crossbreds for litter size and 21-day weight in swine



Sire evaluation based on purebreds and crossbreds for litter size and 21-day weight in swine



Korean Journal of Animal Sciences 36(1): 7-11



The breeding values of the Landrace boars were estimated based on the records of the purebred Landrace and the crossbred between Landrace and Large Yorkshire by best linear unbiased prediction(BLUP) and least squares methods for litter size and 21-day weight to study the relationship between the breeding values estimated by the performances of purebreds and crossbreds. The data used in this study were the records of 3.170 litters of the Breeding Farm in Jeonnam Province front January, 1984 to December, 1991. The correlation between the Landrace purebreds and the crossbreds between Landraces and Large Yorkshires farrowed at the J. Swine breeding values of the boars estimated on the basis of the purebred Laid crossbred performances by the BLUP was 0.253 for the litter size and 0.801 for 21-day weight. The correlation between the breeding values of the boars estimated on the basis of the purebred and crossbred performances by the least squares method was 0.712 for the litter size and 0.853 for 21-day weight.

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Accession: 009422088

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