Coyote reproduction. I. The duration of the spermatogenic cycle and epididymal sperm transport
Sexually mature, male coyotes were injected with [3H]thymidine to estimate (1) the duration of one cycle of the seminiferous epithelium, and (2) epididymal sperm transport time.
The mean duration of spermatogenic stages 1 to 8 was estimated to be 3·4, 2·1, 0·5, 1·4, 1·8, 1·7, 1·5 and 1·3 days, respectively. The total duration of one cycle of the seminiferous epithelium was 13·6 days. Radioactive spermatozoa were observed in the caput epididymidis 40 days after [3H]thymidine injection, but data suggested that they may arrive as early as 37·4 days. Radioactive spermatozoa first appeared in the ejaculate of one male 52 days after [3H]thymidine injection, indicating that the epididymal sperm transport time is about 14 days.
Citation Information
Publication Year | 1972 |
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Title | Coyote reproduction. I. The duration of the spermatogenic cycle and epididymal sperm transport |
DOI | 10.1530/jrf.0.0310163 |
Authors | James J. Kennelly |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Reproduction and Fertility |
Index ID | 70238525 |
Record Source | USGS Publications Warehouse |