Artículos de revistas
Anatomy of the male reproductive system of Phrynops geoffroanus (Testudines: Chelidae).
Fecha
2011-10-01Registro en:
Acta Scientiarum Biological Sciences. , v. 33, n. 4, p. 487-492, 2011.
1679-9283
1807-863X
10.4025/actascibiolsci.v33i4.8091
ZOOREC:ZOOR14803017769
ZOORECZOOR14803017769.pdf
5731856650217859
0000-0002-2029-7900
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
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.