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"Experientia docet" - Experience is the best teacher

Relationship between production performance, visual appraisal and body measurements of young Dorper rams

  • 2002
  • Issue: 4
  • Volume: 32
P.J. Fourie, F.W.C. Neser, J.J. Olivier and C. van der Westhuizen Page: 256 - 262

The body measurements of 433 young Dorper rams participating in the Free State and Northern Cape veld-ram projects were correlated with their production performance. These measurements included a selection index, body weight (kg), average daily gain (g/day) and scrotal circumference…

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Estimated genetic trends for weaning weight in three Dorper lines with different selection criteria

  • 1995
  • Issue: 3
  • Volume: 25
F.W.C. Neser, K.V. Konstantinov and G.J. Erasmus Page: 65 - 69

A study was undertaken to compare the effectiveness of three different selection strategies in increasing weaning weight of a Dorper flock under natural conditions. Data were analysed by mixed model procedures. Direct selection for weaning weight under natural conditions proved…

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