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"Experientia docet" - Experience is the best teacher

Testicular development in Dorper, Döhne Merino and crossbred rams

  • 1987
  • Issue: 1
  • Volume: 17
S.J. Schoeman & G.C. Combrink Page: 22 - 26

Testicular development from 3 to 14 months of age was examined in Dorper (DD), Dohne Merino (DM) and crossbred (Meatmaster; MM) rams. Testicular measurements included testis volume (TV), diameter (TD), length (TL) and scrotal circumference (SC). Both TD and SC…

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The repeatability of reproduction rate in the Tygerhoek Merino flock

  • 1987
  • Issue: 1
  • Volume: 17
S.W.P. Cloete & H.J. Heydenrych Page: 15 - 21

The repeatability of reproduction rate at 2 years or up to 3 years of age was investigated by regression methods considering subsequent reproduction averaged over a number of lambing opportunities or within subsequent age groups. Results from the study suggested…

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A preliminary study on the application of image analysis for the measurement of ostrich eggshell traits (Short communication)

  • 2006
  • Issue: 3
  • Volume: 36
S.W.P. Cloete Jr, A.J. Scholtz, Z. Brand and S.W.P. Cloete Page: 155 - 159

Embryonic mortality in developing ostrich embryos has been linked to water loss in eggs during artificial incubation. Traits possibly related to water loss were assessed on shell samples obtained from 512 hatched ostrich eggs. Moderate to high repeatability estimates (0.43…

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Evaluation of subjectively assessed nodule traits of ostrich skins as influenced by slaughter age

  • 2005
  • Issue: 1
  • Volume: 35
S.J. van Schalkwyk, S.W.P. Cloete, L.C. Hoffman and A. Meyer Page: 48 - 54

Ostrich skins (n = 214) were assessed by 28 participants involved in the ostrich leather production and marketing chain. The participants were from various sectors in the ostrich industry, including producers, skin graders, leather marketers, agents and process managers. Skins…

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