Comparison of statistical models to analyse the genetic effect on within-litter variance in pigs.

@article{Wittenburg2008ComparisonOS,
  title={Comparison of statistical models to analyse the genetic effect on within-litter variance in pigs.},
  author={D{\"o}rte Wittenburg and Volker Guiard and Friedrich Teuscher and Norbert Reinsch},
  journal={Animal : an international journal of animal bioscience},
  year={2008},
  volume={2 11},
  pages={
          1559-68
        }
}
Genetics affects not only the weight of piglets at birth but also the variability of birth weight within litter. Previous studies on this topic assigned the sample standard deviation of piglet birth weights within litter as an observation to the sow. However, the contribution of the difference in mean birth weight per sex on the within-litter variance has been neglected so far. This work deals with the genetic effect on within-litter variance when different statistical models with different… CONTINUE READING

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