Genetic correlations between gestation length , piglet survival and early growth

  title={Genetic correlations between gestation length , piglet survival and early growth},
  author={Lotta Rydhmer and Nils Lundeheim and Laurianne Canario},
This study is based on 12708 first-parity and 7062 second-parity Yorkshire litters from Swedish nucleus herds; and on 1037 first-parity Yorkshire litters from an experimental herd. Gestation length was analysed together with litter size, piglet mortality and average piglet growth rate. A sire–dam model was used to estimate direct (litter) and maternal (sow) genetic effects. Direct heritability for gestation length was 0.3. Maternal heritability was estimated at 0.2 in nucleus data and 0.3 in… CONTINUE READING
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