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"Experientia docet" - Experience is the best teacher

Breeding objectives for Holstein cattle in South Africa

  • 2014
  • Issue: 3
  • Volume: 44
C.B. Banga, F.W.C. Neser & D.J. Garrick Page: 199 - 214

Well-defined breeding objectives form the basis of sound genetic improvement programmes. Breeding objectives for Holstein cattle in South Africa were developed in the current study. Economic values were calculated for those economically relevant traits that had adequate bio-economic data, namely…

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Heritability estimates derived from threshold analyses for reproduction and stayability traits in a beef cattle herd

  • 2001
  • Issue: 1
  • Volume: 31
R.R. van der Westhuizen, S.J. Schoeman, G.F. Jordaan and J.B. van Wyk Page: 25 - 32

The object of this study was to estimate heritabilities and sire breeding values for stayability and reproductive traits in a composite multibreed beef cattle herd using a threshold model. A GFCAT set of programmes was used to analyse reproductive data.…

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