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	Author	Penzhorn, B. L.; van der Merwe, N. J.
	Title	*Testis size and onset of spermatogenesis in Cape mountain zebras (Equus zebra zebra)*			Type	Journal Article
	Year	1988	Publication	Journal of Reproduction and Fertility	Abbreviated Journal	J Reprod Fert
	Volume	83	Issue		Pages	371-375
	Keywords	mountain zebra; testis size; spermatogenesis
	Abstract	Testis mass of adult Cape mountain zebra stallions (mean 70·0 g) was appreciably less than that of other zebra species and domestic horses. The histological appearance of the testes of 11-, 24- and 29-month-old colts was typically prepubertal. Spermatogenic activity of a 4-year-old stallion obtained at the end of summer was at a very low level, while a 4·5-year-old stallion obtained 6 weeks after the winter solstice showed a marked increase in spermatogenesis compared with the 4-year-old. Stallions 6·5-19 years of age collected in different seasons all showed active spermatogenesis.
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	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	from Professor Hans Klingels Equine Reference List			Approved	yes
	Call Number				Serial	1463
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