نوع مقاله : فیزیولوژی (جانوری)
نویسندگان
1 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، صندوق پستی:487-49175
2 دانشکده کشاورزی، دانشگاه آزاد اسلامی، واحد قائمشهر، صندوق پستی: 61964-47651
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this present study, 240 three-spot gourami (Trichogaster trichopterus) fallowing was exposed to 17-β estradiol at stage of development including prior to maturity (larvae) average (1.26±0.12 g). The 20 species per aquarium under the four treatments (0, 10, 25 and 50 mg per kg of food) in three replicates were performed in a period of 90 days. Hormone was added to fish food. Results showed that treatments had no significant difference in fish growth, which correlated with increased amounts of 17- β estradiol (P<0.05), but the most growth was observed in treatment 3 (25 mg/kg of 17-β estradiol per fish). Also had no significant difference in number of white blood cells and hematocrit percentage between treatments (P<0.05). Although sex reversal was not significantly different from other treatments, it had increasing effect with increasing 17-β estradiol rate.
کلیدواژه‌ها [English]
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