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"Experientia docet" - Experience is the best teacher

The allometric–autoregressive model in genetic studies: Heritabilities and correlations in the rat

  • 1981
  • Issue: 2
  • Volume: 11
M.M. Scholtz & C.Z. Roux Page: 69 - 76

The allometric-autoregressive quantification of growth and efficiency divides rat growth into 3 different physiological phases. Significant differences between families for some of these parameters existed. Consequently, heritabilities and, phenotypic and genetic correlations of the different parameters were estimated. Significant heritabilities…

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The effect of heterogeneity for yearling weights measured in different test phases of the South African National Beef Cattle Imp

  • 2002
  • Issue: 3
  • Volume: 32
R.R. van der Westhuizen and T. Rust Page: 171 - 174

In animal breeding, selection decisions are often made amongst animals from separate environmental groups. Production data in these groups may differ both in mean and variance. In South Africa, yearling weights of beef cattle are recorded in two different phases…

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