Scrotal, testicular and semen characteristics of young Dorper rams managed under intensive and extensive conditions

@article{Fourie2004ScrotalTA,
  title={Scrotal, testicular and semen characteristics of young Dorper rams managed under intensive and extensive conditions},
  author={Pieter J. Fourie and L. M. J. Schwalbach and F. W. C. Neser and Carlu van der Westhuizen},
  journal={Small Ruminant Research},
  year={2004},
  volume={54},
  pages={53-59}
}
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Live weight changes, gonadal and epididymal sperm reserves of Yankasa Rams fed different levels of dried layer litter in their diets
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The effect of nutritional regimen on the potential semen production of rams
TLDR
Sperm output of individual rams was not influenced remarkably by the number of ejaculates within the range of 130–160 over two 5-day series, and semen characteristics were examined for semen characteristics and the 'reaction time' was recorded at each service.
Onset of Spermatogenesis in Corriedale Ram Lambs under Extensive Rearing Conditions in Uruguay
TLDR
It is concluded that, under these rearing conditions, the onset of puberty (expressed as morphologically established spermatogenesis) in Corriedale ram lambs is attained at 180-216 days of age when they reach 23 cm of scrotal circumference and 191 g of testis weight.
Testicular development in Dorper, DOhne Merino and crossbred rams
TLDR
Testicular development from 3 to 14 months of age was examined in Dorper (DD), Dohne Merino (DM) and crossbred (Meatmaster; MM) rams and a SC : live body mass ratio is recommended as a practical selection criterion.
Effect of undernutrition on the size and tone of the ram's testes
Contribution of the scrotum and testes to scrotal and testicular thermoregulation in bulls and rams.
TLDR
Results supported the hypotheses that the scrotum has a positive temperature gradient and that the testis has a negative temperature gradient, resulting in a relatively uniform intratesticular temperature, below body core temperature, that is essential for normal sperm production.
Effect of season and nutrition on scrotal circumference of Merino rams
TLDR
Merino rams fed the maintenance diet showed a pattern of increasing scrotal circumference, starting in late spring after the spring equinox and reaching a maximum in autumn-early winter, then decreasing in mid-late winter after the winter Equinox.
Seasonal variation in semen quality of Boer and Angora goat rams using different collection techniques
TLDR
The artificial vagina proved to be the most satisfactory method of semen collection in the Boer goat and caused a significant variation in pH between months.
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