A comparison of normal and nonnormal mixed models for number of lambs born in Norwegian sheep.

@article{Olesen1994ACO,
  title={A comparison of normal and nonnormal mixed models for number of lambs born in Norwegian sheep.},
  author={Ingrid Olesen and Miguel P{\'e}rez-Enciso and Daniel Gianola and D. L. Thomas},
  journal={Journal of animal science},
  year={1994},
  volume={72 5},
  pages={
          1166-73
        }
}
A comparison of linear (LM), threshold (TM), and Poisson (PM) mixed models for genetic analysis of number of lambs born (NLB) from 1-yr-old ewes was conducted using 37,718 and 18,633 records of two Norwegian breeds, Dala and Spaelsau, respectively. Models fitted included flock-year as a fixed effect and the random effect of sire. In the Poisson model, the residual variation was assumed to be Poisson, whereas it was normal in LM and multinomial in TM. The models were compared with respect to… CONTINUE READING

Topics from this paper.

Citations

Publications citing this paper.
SHOWING 1-10 OF 15 CITATIONS

Applying Quantitative Genetic Methods to Primate Social Behavior

  • International Journal of Primatology
  • 2013
VIEW 1 EXCERPT
CITES BACKGROUND

Assessment of Poisson, probit and linear models for genetic analysis of presence and number of black spots in Corriedale sheep.

  • Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie
  • 2011
VIEW 3 EXCERPTS
CITES METHODS & BACKGROUND