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"Experientia docet" - Experience is the best teacher

Revised models and genetic parameter estimates for production and reproduction traits in the Elsenburg Dormer sheep stud

  • 2003
  • Issue: 4
  • Volume: 33
J.B. van Wyk, M.D. Fair and S.W.P. Cloete Page: 213 - 222

Genetic parameters for production and reproduction traits in the Elsenburg Dormer sheep stud were estimated using records of 11743 lambs born between 1943 and 2002. An animal model with direct and maternal additive, maternal permanent and temporary environmental effects was…

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Genetic parameter estimates of early growth traits in the Tygerhoek Merino flock

  • 2002
  • Issue: 2
  • Volume: 32
G. Duguma, S.J. Schoeman, S.W.P. Cloete and G.F. Jordaan Page: 66 - 75

Genetic parameters were estimated for birth weight (BWT), weaning weight (WWT) and pre-weaning average daily gain (ADG) using Restricted Maximum Likelihood (REML) procedures. Four different animal models were fitted, differentiated by including or excluding maternal effects. The direct heritability estimates…

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