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"Experientia docet" - Experience is the best teacher

Effects of production stage and fertility traits on milk production of pasture-grazed Holstein and Jersey cows in a Mediterranean-type climate region

  • 2022
  • Issue: 4
  • Volume: 52
N.M. Bangani, C.J.C. Muller, K. Dzama, C.W.C Cruywagen & V.E. Imbayarwo-Chikosi Page: 552 - 562

The aim of this study was to compare the milk production of Holstein and Jersey cows on pasture as affected by parity, lactation stage, calving season, age at first calving, and calving interval. Test-day lactation records of 122 Holstein and…

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The effect of geographical region of birth on the reproductive performance of the Nguni in southern Mozambique

  • 2013
  • Issue: 5
  • Volume: 43
S. Maciel, A.M. Okeyo, J. Amimo, M.M. Scholtz, F.W.C. Neser & M. Martins Page: 60 - 63

The objective of this study was to assess the effect of place of birth on the reproductive performance of two Nguni ecotypes (Nguni and Landim) raised in a sub-tropical environment to enhance strategies for livestock development and restocking programmes within…

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Genetic correlations between female fertility and production traits in South African Holstein cattle

  • 2007
  • Issue: 3
  • Volume: 37
M.L. Makgahlela, C.B. Banga, D. Norris, K. Dzama and J.W. N'gambi Page: 180 - 188

Female fertility is increasingly gaining importance in national dairy cattle breeding objectives worldwide. In South Africa, there is no routine prediction of breeding values for reproductive performance in dairy cattle and selection is mainly focused on production traits. The objective…

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