Abstract
IN mammals, spermatozoa mature while passing through the epididymis. Whether or not the factors governing the maturation process are intrinsic to the spermatozoa1 or whether they reside in the epididymal secretions2 is not known. In the rabbit, there are virtually no fertile spermatozoa in the caput or proximal corpus epididymidis, and fertilizing ability is suddenly acquired when the spermatozoa pass through the distal region of the corpus epididymidis3–6. This, and the fact that, in the rabbit, the normal time which spermatozoa spend in each epididymal segment is known7, makes this species especially suitable for investigating sperm maturation.
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References
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ORGEBIN-CRIST, M. Sperm Maturation in Rabbit Epididymis. Nature 216, 816–818 (1967). https://doi.org/10.1038/216816a0
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DOI: https://doi.org/10.1038/216816a0
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