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"Experientia docet" - Experience is the best teacher

Die reproduksievermoë van Dohnemerino-ooie in’n versnelde teelstelsel

  • 1985
  • Issue: 1
  • Volume: 15
F.O.C.W. Karberg, A.J. Fourie & H.H. Barnard Page: 1 - 4

The reproductive potential of Dohne Merino ewes in an accelerated breeding system. Between 1967 and 1975 Dohne Merino ewes were kept on pastures and subjected to an accelerated breeding system at 8-month intervals. Both management and feeding programmes were improved…

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Nitrogen retention of Angora goats receiving alkali-ionophore-treated whole maize containing various levels of urea (Short commu

  • 1985
  • Issue: 1
  • Volume: 15
V. Gevers & D. Wentzel Page: 18 - 19

A nitrogen-balance study was carried out to investigate the utilization of various levels of urea (0 - 4%) absorbed by alkali-ionophore-treated whole maize when fed to Angora goats receiving a protein-deficient roughage diet. Nitrogen retention was increased significantly (P<0,05) only…

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Synchronization of oestrus in the Boer goat doe: The response to the use of intravaginal progestagen and PMSG

  • 1985
  • Issue: 2
  • Volume: 15
J.P.C. Greyling, C.H. van Niekerk & J.A.N. Grobbelaar Page: 52 - 55

The effect of different periods (12, 14, 16 or 18 days) of intravaginal progestagen treatment (MAP) and PMSG (300 IU) on synchronization of oestrus in Boer goat does was investigated. No significant difference in oestrous response, follicular activity, ovulation rate,…

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Advances in intensive ruminant nutrition

  • 1985
  • Issue: 3
  • Volume: 15
B.D.H. van Niekerk Page: 63 - 71

Of the many advances in ruminant nutrition made in recent times the change from dilute roughage-based feeds to highly concentrated grain-rich diets has probably had the greatest single impact on ruminants and on their rate of production. This change has…

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