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"Experientia docet" - Experience is the best teacher

The effect of epigenetic changes on animal production

  • 2014
  • Issue: 1
  • Volume: 7
M.M. Scholtz, J.P. van Zyl & A Theunissen Page: 7 - 10

All alterations in DNA function, without alterations in DNA sequence, are referred to as epigenetics. It is associated with gene expression and the expression of different phenotypes (appearance). These modifications are influenced by environmental factors and can be transferred to…

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Crossbreeding with a Bonsmara dam line

  • 2014
  • Issue: 1
  • Volume: 7
A. Theunissen, M.M. Scholtz, F.W.C. Neser & M.D. MacNeil Page: 17 - 21

Data from a crossbreeding trail in South Africa which involved the Bonsmara (Bo) as dam line and the Simmentaler (S), Brahman (Br), Charolais (C) and Herefords (H) as sire lines were used to estimate the additive and non-additive effects for…

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Ways to reduce the environmental impact of dairy farming

  • 2014
  • Issue: 1
  • Volume: 7
C.J.C. Muller & M.M. Scholtz Page: 31 - 37

The image of dairy farming systems is increasingly being scrutinized by welfare organizations, activist groups and the public with intensive systems getting the most attention. So-called factory farms are being regarded by the public as not ideal for the production…

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