Some season-related morphometric, structural and weight characteristics of testes in the viper (Viper Ammodytes)
2002
Dimitrov, D. | Hristov, K. | Angelov, A. (Trakia University, Stara Zagora (Bulgaria))
Their analysis showed that from winter to the end of spring (when the breding period of vipers in Bulgaria occurs), the weight of testes increased more than thrice, the diameter of seminiferous tubules - more than twice and afterwards the values of both parameters decreased gradually and reached the highest values for the winter season by the end of the autumn. The seasonal variations in both weight and diameter correlated with the histological status of testes. The involution processes within seminiferous tubules, starting by the beginning of winter, were still active also in the middle or end of spring, when vipers were ready again for another reproductive period.
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