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"Experientia docet" - Experience is the best teacher

Luteinizing hormone (LH) and prolactin levels at oestrus following synchronisation with progestogens in the ewe

  • 1974
  • Issue: 2
  • Volume: 4
J.P. Baumgartner, A.W. Lishman, B.P. Louw & W.A. Botha Page: 137 - 141

The pattern of luteinizing hormone (LH) and prolactin release following the synchronisation of oestrus with progesterone or SC-9880 was studied. Of the 10 ewes treated with progesterone three did not exhibit oestrus. Where oestrus was synchronised with SC-9880 the preovulatory…

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Some factors affecting fertility in dry cows in southern Africa

  • 1974
  • Issue: 2
  • Volume: 4
J.M. van der Westhuysen and J.A. Venter Page: 185 - 189

The incidence of oestrus, ovulation. fertilisation and embryonic mortality were investigated in a series of experiments. In the first experiment, the occurrence of oestrus and ovulation in Africanders and Hereford cows were compared. It was found that Africanders showed oestrus…

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Vleisproduksie met die Jerseymoer as basis. 2. Die produksiepotensiaal van verskillende kruisgeteelde Jerseynageslag

  • 1974
  • Issue: 2
  • Volume: 4
A.H. Mentz, W.A. Coetzer, J.A. Vermeulen en J.E. Coetzee Page: 203 - 207

Beef production with the Jersey dam as basis: 2.The production potential of various crossbred Jersey progeny: Two hundred and twenty nine crossbred Jersey calves from Africander, Charolais and Hereford bulls were produced and evaluated as slaughter animals over a four…

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