کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8494649 | 1552843 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of dietary n â 3 LC-PUFAs on plasma vitellogenin, sex steroids, and ovarian steroidogenesis during vitellogenesis in female silver pomfret (Pampus argenteus) broodstock
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
ERαSilver pomfretBroodstockGTHHPGVitellogeninSFOFSO17β-estradiol - 17β استرادیولSex steroids - استروئید جنسی، نادواستروئیدها، هورمون جنسیSteroidogenesis - استروئیدوژنزtestosterone - تستوسترونfollicle-stimulating hormone - هورمون تحریک کننده فولیکولluteinizing hormone - هورمون جسم زردFSH - هورمون محرکه فولیکولی vtg - ویتگEstrogen receptor alpha - گیرنده استروژن آلفا
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We investigated the effects of dietary n â 3 LC-PUFAs on plasma vitellogenin (Vtg), sex steroids levels and ovarian steroidogenesis during vitellogenesis in female silver pomfret (Pampus argenteus) broodstock. Broodstock were fed four iso-nitrogenous, iso-energetic, and iso-lipidic experimental diets for 185 d: FO (100% fish oil), FSO (70% fish oil and 30% soybean oil), SFO (30% fish oil and 70% soybean oil), and SO (100% soybean oil) with n â 3 LC-PUFA levels of 5.18, 4.01, 3.02, and 2.22%, respectively. The results revealed that plasma FSH levels increased at vitellogenesis (P < 0.05) and slightly decreased at post-vitellogenesis in all four groups. However, plasma LH levels continuously increased during vitellogenesis and significantly increased at post-vitellogenesis (P < 0.05). The FO and FSO groups had significantly higher FSH and LH levels than the SO group at vitellogenesis and post-vitellogenesis. Plasma E2 and T levels continuously increased during vitellogenesis in all four groups. However, the SO group had the lowest plasma E2 and T levels during vitellogenesis. Plasma Vtg levels significantly increased at vitellogenesis and post-vitellogenesis (P < 0.05). FO and FSO had significantly higher Vtg levels than SO (P < 0.05) during vitellogenesis. Cyp19α1α and erα expression levels significantly increased at vitellogenesis and post-vitellogenesis (P < 0.05), with no significant differences between the vitellogenesis and post-vitellogenesis, except in the SO group. Cyp19α1α and erα expression levels decreased in SO at vitellogenesis. In conclusion, dietary n â 3 LC-PUFAs affect ovarian steroidogenesis in silver pomfret by altering plasma FSH and LH levels and ovarian Cyp19α1α gene expression levels during vitellogenesis. High dietary n â 3 LC-PUFAs promote ovarian development in silver pomfret, by increasing E2 secretion and Vtg synthesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 444, 1 July 2015, Pages 93-98
Journal: Aquaculture - Volume 444, 1 July 2015, Pages 93-98
نویسندگان
Shiming Peng, Quanxin Gao, Zhaohong Shi, Chenjie Zhang, Jiangang Wang, Fei Yin, Yanliang Zhang,