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"Experientia docet" - Experience is the best teacher

Effect of grazing cycle on milk production of cows on kikuyu pasture

  • 1995
  • Issue: 1
  • Volume: 25
W.P. Henning, H.H. Barnard and J.J. Venter Page: 7 - 12

Kikuyu pasture (Pennisetum clandestinum) was evaluated as forage for milk production during the 1985/86 and 1986/87 grazing seasons at the Bathurst Research Station in the seaboard area of the Eastern Cape. The effect of different rotational grazing cycle lengths on…

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Effect of mortality rate, breed type and breed on total herd efficiency

  • 1995
  • Issue: 3
  • Volume: 25
R. du Toit, J. van der Westhuizen, M.M. Scholtz and B.E. Mostert Page: 57 - 60

The influence of two scenarios of mortality rates (assumed average and observed) on total herd efficiency of the four main breed types in South Africa (Sanga/Zebu, composite, British and European), as well as all the individual breeds participating in the…

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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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Effects of infused methionine, lysine and rumen-protected methionine derivatives on nitrogen retention and wool growth of Merino

  • 1995
  • Issue: 4
  • Volume: 25
J. Coetzee, P.J. de Wet and W.J. Burger Page: 87 - 94

Nitrogen (N) retention and wool growth rate (WGR) responses to various amino acids and derivatives as well as protein sources were determined with six ruminally and six abomasally fistulated Merino wethers in two balanced cross-over design experiments. The six treatments…

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