Galas J, Epler P, Stoklosowa S. Seasonal response of carp (Cyprinus carpio) ovarian cells to stimulation by various hormones as measured by steroid secretion: tissue culture approach. Endocr Regul. 1999;33:125-32 pubmed
..It was shown that steroid secretory pattern of follicular cells changed during the year and that the three factors used (pituitary homogenate, hCG and 17alpha,20 betaOH-P) exerted direct influence upon steroids secretion. ..