Seasonal study quail's vas deferens of italian variety: morphology and histomorphometry


  • Katia Aparecida da Silva Viegas Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia, São Paulo, SP
  • Antonio Marcos Orsi Universidade Estadual Paulista, Instituto de Biociências, Departamento de Anatomia, Botucatu, SP
  • Karina Simões Universidade Metodista de Piracicaba, Centro de Ciências da Saúde, Lins, SP



Vas deferens, Morphology, Seasonal variability, Domestic quail, Italian variety


In the autumn the vas deferens of the Italian variety of domestic quail appeared as a single, thin, and straight duct along its total extension. Thus, transversal histologic sections of this duct showed a circular tubular shape. The pseudoestratified columnar epithelium that lined the vas deferens presented longitudinal folds which invaded the lumen frequently empty of spermatozoa. Although in the winter, spring and summer the usual morphological appearance of the quail's vas deferens was seen as a highly coiling duct. So, each transversal histologic section of the vas deferens, in all the segments, showed parallel cut sections of the duct being irregular in shape and variable in number and interconnected by the adventitial loose connective tissue. In these observations, the tubular lumen was totally performed by spermatozoa and seminal fluid. Consequently, with previous base on the testis kinetics of the Italian quail variety, it was concluded that the spermatozoa production, followed by emission, storage and ejaculation of spermatozoa through the vas deferens did not stop during the winter, spring and summer, but ceased in the autumn the quiescent phase of the circannual reproductive cycle in this bird.


Download data is not yet available.



How to Cite

Viegas, K. A. da S., Orsi, A. M., & Simões, K. (2006). Seasonal study quail’s vas deferens of italian variety: morphology and histomorphometry. Brazilian Journal of Veterinary Research and Animal Science, 43(5), 605-612.




Most read articles by the same author(s)

1 2 > >>