In the preceding study, the induction of feminization in genetically male sterlet was achieved through the administration of a genistein (GS) dosage of 1000 µg/g feed for 180 days, commencing at 8 weeks posthatch (WPH). The present study, composed of two experiments, was conducted to investigate the effects of 8- or 16-week administration of 500 or 1000 µg GS/g feed, and 16-week administration of 1000 µg GS/g feed initiated at...

Caviar, a delicacy prepared from sturgeon ovaries, is notoriously expensive. Recent advances have enabled the production of caviar from sturgeons. This study aimed to enhance the production efficiency of female monosex cultures using genistein, an isoflavone with estrogenic effects that is abundant in soybeans. Twenty-five sterlets ( Acipenser ruthenus ) aged 56 days post-hatch (DPH) were administered one of three feeds contai...