An aqueous extract of Cynomorium coccineum was administered by stomach tube to ten mature male Wistar rats, at a dose of 47 mg/100 kg body weight/day for 14 consecutive days. Ten rats were kept as controls and received normal saline by oral route at the same dosing interval. Sperm was collected from the epididymes after decapitation. The results revealed that the water extract of the Cynomorium coccineum induced significant increase in the sperm count, improved the percentage of live sperm and their motility and decreased the number of abnormal sperm. Testicular histology showed increased spermatogenesis and seminiferous tubules full of sperm in the treated group compared with the controls.
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El-Rahman et al. (1999) studied this question.
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