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The response of rabbit spermatozoa to artificial cryptorchidism and ligation of the epididymis

, : The response of rabbit spermatozoa to artificial cryptorchidism and ligation of the epididymis. Journal of Endocrinology 23: 317-328

By means of unilateral ligation of the epididymis and experimental cryptorchidism to 21 adult male rabbits, the reaction of spermatozoa to proximal regions of the epididymis to the effects of retention to the abdomen was investigated. In each case the epididymis was ligated at the junction of the corpus epididymis and the cauda epididymis. Combined estimates of esophilic spermatozoa and decapitated spermatozoa to smears stained with nigrosin eosin were used to indicate the response to different samples. Examination of spermatozoa withdrawn from four levels of the tubule showed that those in the caput epididymis and the initial segment reacted rapidly to the effects of artificial crytrochidism, whilst the response of spermatozoa from the corpus epididymis appeared to be delayed. Contralateral testes and ligated epididymis were maintained in the scrotum to serve as controls, and under these circumstances sperma-togenesls continued for at least three weeks, although shortly after ligation, the epididymis were tightly packed with spermatozoa and fluid. Examination of the tubular contents to these specimens by means of the nigrosin eosin technique revealed a progressive degeneration of spermatozoa above the site of ligation. However, microscopical observations of motility indicated enhanced activity in samples collected during the first three weeks of ligation of the epididymis.


PMID: 13899291

DOI: 10.1677/joe.0.0230317

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