PMID: 19943451Dec 1, 2009Paper

Live weight related changes in the sperm production capacity of white fulani (Bos indicus) cattle I: testicular histomorphometry

Pakistan Journal of Biological Sciences : PJBS
V A Togun

Abstract

The study investigated live weight related changes in testicular histomorphmery of White Fulani (WF) bulls of live weight range 171-320 kg under the traditional extensive system of management in Ibadan, Nigeria. Fifty-two WF bulls were randomly selected from local Fulani herds around Ibadan and placed in Giant Star grass paddocks with water available free choice for one week prior to slaughter. Morhpometric measurements were taken on the scrotum before and on the testes immediately after slaughter. Histometric measurements were taken on the testicular parenchyma tissue after histological processes. From their weight at slaughter, the bulls were grouped into four live weight groups of 171-200, 201-230, 231-260 and 261-320 kg for group I, II, III and IV, respectively. Mean values of group IV bulls were significantly (p<0.05) higher in all scrotal and testicular morphometric measurements than all other groups, which did not differ significantly (p>0.05) from one another. The gonadal index (relative weight of testes to live weight) did not differ (p>0.05) between groups except that group IV value was significantly (p<0.05) higher than all other groups. The relative proportion of paired epididymal weight to live weight did not diffe...Continue Reading

References

Jan 1, 1979·Perspectives in Biology and Medicine·R A Coulson
Jul 1, 1990·Physiology & Behavior·M A WilsonN Greenberg
Dec 1, 1989·Physiology & Behavior·M A Wilson, R E Gatten
Jan 1, 1985·Comparative Biochemistry and Physiology. A, Comparative Physiology·M K Al-Sadoon, I F Spellerberg
Jan 1, 1987·Comparative Biochemistry and Physiology. A, Comparative Physiology·M K Al-Sadoon, A A el-Banna
Jan 1, 1987·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·R A Coulson
Jan 1, 1994·Gerontology·B K Patnaik
May 1, 1997·Physiological Zoology·G G Thompson, P C Withers

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