نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه شیلات، دانشکده علوم کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبدکاووس، ایران.
2 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران.
3 گروه شیلات، دانشکده منابع طبیعی، دانشگاه آزاد اسلامی واحد بندرعباس، بندعباس، ایران.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The purpose of this study was to find the role of 17 beta-estradiol on metabolic parameters and steroid hormones of Litopenaeus vannamei hemolymph . Shrimp with an average weight of 40.18±2.46 g received 0, 20, 40 and 60 mg/kg levels (E0, E20, E40 and E60) in the diet for 25 days. After adaptation to the rearing conditions, 80 shrimps were placed in 4 treatments (each with 2 replications). The results showed no significant changes in the majority of the parameters analyzed, except for the Haemocyanin and protein in the plasma (P>0.05). The highest protein, cholesterol and glucose levels in E40 treatment were 7.22±0.30, 97.65±8.70 and 80.78±4.35 mg/dL, respectively. There was no significant difference in the amount of steroid hormones between treatments with other treatments (except E40 treatment) (P>0.05). Based on the results, it can be reported that adding 40 mg of hormone to broodstock commercial feed improves hormonal activities of L. vannamei.
کلیدواژهها [English]