11 آذر 1400
ابراهيم ستوده

ابراهیم ستوده

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه علوم شیلاتی
تحصیلات: دکترای تخصصی / مهندسی منابع طبیعی
تلفن: 09173740528
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان Dietary soybean phosphatidylcholine affect growth performance and lipolytic enzyme activity in Caspian brown trout (Salmo trutta Caspius) alevin
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله AQUACULTURE RESEARCH
شناسه DOI
پژوهشگران عبدالمحمد عابدیان کناری (نفر اول) ، ابراهیم ستوده (نفر دوم) ، مهران حبیبی رضایی (نفر سوم)

چکیده

The effects of supplemental dietary phosphatidylcholine (PtCho) on the growth performance, survival and digestive enzyme activity of Caspian brown trout (Salmo trutta caspius Kessler 1877) alevins were investigated in this study. Alevin (initial weight 0.8 ± 0.12 g) was fed for 5 weeks with an isoproteic- and isolipidic-formulated diet with increased levels of PtCho from 0 to 60 g kg?1 dry matter and decreasing levels of soybean oil. The increase in dietary PtCho up to 4% led to an increase in alevin final weight, suggesting that moderate PtCho levels are needed during this stage of Caspian brown trout. Survival was not affected by the dietary PtCho level. Phosphatidylcholine incorporation into the diet caused higher phospholipase A2-specific activity. Phosphatidylcholine did not show a beneficial effect on the specific activity of amylase and protease. Lipase-specific activity was significantly higher in the PtCho groups compared with the control group. The hepatosomatic index (HSI) was significantly influenced by the dietary PtCho level. The results of the present study indicated that the dietary supplementation of PtCho in the diet of Caspian brown trout alevin improved growth and lipolytic enzyme activity.