Morpho-histological changes of seminiferos tubulas and testes of epididymis secretion's characteristics of black-and-white breed bull-calves according to their age

M. V. Pavlyk, S. O. Vovk

The results of histological investigations characteristics of seminiferous tubules of black-and-white breed bull-calves depending on their age are presented in this article. Moreover the comparative age changes of epididymis?s secretion content, its concentration and environment reaction, quantity of spermatozoa, their movement and presence of protoplasmatic drop in spermatozoa are given.

Download full text in PDF format