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[The reproductive performance of sows with different malignant hyperthermia syndrome status].

Based on 200 litters descending from 50 sows relations between MHS-genotype and reproductivity were investigated. Breeds used were "Deutsches Edelschwein", German Landrace and a crossbred line. Evaluation of MHS-status was done by Polymerase Chain Reaction. Reproductivity traits were piglet numbers at different ages and litter growth. The sows were not preselected in regard to the halothane gene. MHS-negative sows showed increased reproductivity towards MHS-positives and within the negatives, the homozygote sows were superior to the heterozygotes.