Effect of pituitary extracts on the hypophysial gonadotrophes and its relation to the spermatogenesis in Rana hexadactyla Lesson

Abstract

Pituitary extracts from 560 mature Ku.n.u h.exadactylu of both sexes from winter and summer seasons were collected locally and were injccted into frogs from summer and winter months. The adenohypophysial gonadotrophes were studied from normal animals and from thc animals injected wjth pituitary extracts. The pituitary cell types changed in experimental frogs in comparison to the corresponding cells of normal animals. An attempt has been made to correlate the changes of gonadotrophes with changes in spermatogcnetic proliferation as reported earlicr (Kasinathaii and Basu, '72).