Seasonal variations of male reproductive parameters of Tomodon dorsatus from Southeastern Brazil

نویسندگان

چکیده

ABSTRACT: The morphology of the male reproductive tract Tomodon dorsatus was described in austral seasons year considering macroscopic and microscopic variables. For this purpose, 56 specimens from herpetological collection “Instituto Butantan” were used. Fragments testes, kidneys ductus deferens collected submitted to histological routine. peak testicular volume observed summer epithelium seminiferous tubules had higher height (p=0.001). testes active throughout year, however, spermiogenesis peaked summer. There spermatozoa lumen all year. Renal length autumn (p=0.027), renal width did not show a significant increase (p=0.237). diameter epithelial sexual segment kidney (SSK) showed hypertrophy winter spring, coinciding with mating period. Based on findings study, we can suggest that, at population level, cycle T. be considered seasonal semi-synchronous, due spermiogenic activity hot season, discontinuous individual level.

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ژورنال

عنوان ژورنال: Pesquisa Veterinaria Brasileira

سال: 2021

ISSN: ['1678-5150', '0100-736X']

DOI: https://doi.org/10.1590/1678-5150-pvb-6725