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"Experientia docet" - Experience is the best teacher

Estimates of variance components for feedlot traits of the Simmentaler breed in South Africa

  • 2021
  • Issue: 6
  • Volume: 51
J. Hendriks, F.W.C. Neser, J.B van Wyk, F.J. Jordaan & M.M. Scholtz Page: 793 - 800

Breeding of beef cattle is changing, with more emphasis on efficiency of production. Feed cost is the highest expense, and reducing it has the potential to increase profitability. Common measures of efficiency are ratio traits such as feed conversion (feed…

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Estimates of variance components for postweaning feed intake and growth in Bonsmara bulls and evaluation of alternative measures of feed efficiency

  • 2013
  • Issue: 1
  • Volume: 43
M.D. MacNeil, M.M. Scholtz & A. Maiwashe Page: 18 - 24

Feed efficiency is of major economic importance in beef production. The objective of this work was to evaluate alternative measures of feed efficiency for use in genetic evaluation. To meet this objective, genetic parameters were estimated for the components of…

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Genetic variance components for residual feed intake and feed conversion ratio and their correlations with other production trai

  • 2004
  • Issue: 4
  • Volume: 34
R.R. van der Westhuizen, J. van der Westhuizen and S.J. Schoeman Page: 257 - 264

Feeding costs of animals is a major determinant of profitability in livestock production enterprises. Genetic selection to improve feed efficiency aims to reduce feeding cost in beef cattle and thereby improve profitability. This study estimated genetic (co)variances between weaning weight…

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