TRANSPORT OF UNEJACULATED SPERMATOZOA THROUGH THE PELVIC PART OF THE UROGENITAL TRACT IN THE RAM

in Reproduction

Investigations carried out on the transport and resorption of the unejaculated spermatozoa have failed to determine conclusively the percentage of the spermatozoa being produced which are expelled into the urethra. Among numerous authors dealing with the fate of the unejaculated spermatozoa, only Lino, Braden & Turnbull (1967) recorded a figure as high as 88% of the total number of spermatozoa being produced which were voided in the urine. Experiments in which we applied the method for urine collection described by Lino et al. (1967) demonstrated that rams were masturbating by rubbing the penis against a rubber funnel fastened under the prepuce. After masturbation had been prevented by tying the tunica albuginea of the penis to the skin, only small numbers of spermatozoa were found in the urine.

The urine was collected

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     An official journal of

    Society for Reproduction and Fertility

 

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