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"Experientia docet" - Experience is the best teacher

The synchronisation of oestrus in sheep. 1. Dosage and time of prostaglandin administration following progestagen pretreatment

  • 1979
  • Issue: 3
  • Volume: 9
J.P.C. Greyling, J.M. van der Westhuizen and C.H. van Niekerk Page: 185 - 192

In order to overcome the refractory period of the ovary to c1oprostenol (ICI 80996) treatment (prior to day 4 and subsequent to day 14 of the oestrous cycle), ewes were treated with intravaginal progestagen sponges for eight days and injected…

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Crossbreeding with Africander dam as basis. 3. Post-weaning growth performance of prgeny of various sire-breeds

  • 1979
  • Issue: 3
  • Volume: 9
A.H. Mentz, D.L. Els and W.A. Coetzer Page: 209 - 214

Post-weaning growth performance was studied for 342 steers out of Africander cows and by Africander, Brahman, Charolais, Hereford and Simmentaler sires. In a system of intensive fattening, the latter three Bos taurus sire-breed progeny-groups performed strikingly better than the former…

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