Anatomy of the male reproductive system of Phrynops geoffroanus (Testudines: Chelidae)

Autor: Classius de Oliveira, Lilian Franco-Belussi, Rodrigo Zieri, Carlos Eduardo Saranz Zago, Silvia Rosana Pagliarini Cabral, Lia Raquel de Souza Santos
Přispěvatelé: Universidade Estadual Paulista (Unesp)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2013-09-27T16:24:24Z (GMT). No. of bitstreams: 1 ZOORECZOOR14803017769.pdf: 1569480 bytes, checksum: f7b635dfc70a5793e5df9d39f373d0c5 (MD5) Previous issue date: 2011-10-01 Made available in DSpace on 2013-09-30T19:25:10Z (GMT). No. of bitstreams: 1 ZOORECZOOR14803017769.pdf: 1569480 bytes, checksum: f7b635dfc70a5793e5df9d39f373d0c5 (MD5) Previous issue date: 2011-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:34:58Z No. of bitstreams: 1 ZOORECZOOR14803017769.pdf: 1569480 bytes, checksum: f7b635dfc70a5793e5df9d39f373d0c5 (MD5) Made available in DSpace on 2014-05-20T15:34:58Z (GMT). No. of bitstreams: 1 ZOORECZOOR14803017769.pdf: 1569480 bytes, checksum: f7b635dfc70a5793e5df9d39f373d0c5 (MD5) Previous issue date: 2011-10-01 The reproductive system of male Phrynops geoffroanus adults is macroscopically described and the variation in testicular biometry is evaluated. A pair of oval testes is connected by the efferent ductules to the epididymis, which continue as deferent ducts, which emerge in the penis. The volume of the gonads showed the highest averages during spring and summer months. GSI varied significantly throughout the year, with the highest averages observed in the months that correspond to the end of spring and the beginning of summer, when the reproduction of the species takes place, and the lowest averages were seen in winter, suggesting a cyclical testicular activity. Univ Estadual Paulista Julio de Mesquita Filho, Dept Biol, Rua Cristovao Colombo 2265, São Paulo, BR-15054-000, Brazil Univ Estadual Paulista Julio de Mesquita Filho, Dept Biol, Rua Cristovao Colombo 2265, São Paulo, BR-15054-000, Brazil
Databáze: OpenAIRE