Mahmoud Nafisi Bahabadi

[ 1 ] - In vitro study of antibacterial activities of ethanol, methanol and acetone extracts from sea cucumber Holothuria parva

Sea cucumbers are the most important medicinal group among echinoderms. The presence of a wide range of natural bioactive compounds from sea cucumbers has been confirmed in many studies. This study was aimed to evaluate the antibacterial activities of ethanol, methanol and acetone extracts from sea cucumber Holothuria parva. Sea cucumber were collected during low tide from Ola village, Bushehr,...

[ 2 ] - Effects of intermittent feeding on compensatory growth, feed intake and body composition in Asian sea bass (Lates calcarifer)

This experiment was conducted to investigate the effects of various starvation and refeeding periods on growth, feed utilization and body composition in Asian sea bass (Lates calcarifer) with an average initial weight of 30.26±1.4 g (mean±SE). The fish were exposed to three different regimes: the control group fed twice daily to apparent satiation throughout the experiment (C), the first group ...

[ 3 ] - Effect dietary energy levels and feeding rates on growth and body composition of fingerling rainbow trout (Oncorhynchus mykiss)

Growth, feed conversion ratio and fillet composition of rainbow trout (initial weight of 9.99±0.109)were investigated in a 6x2 factorial design experiment employing two levels of digestible energy (DE) (2900 and 3500kcal.kg-1) and six feeding rates (1.0%, 2.0%, 3.0%, 4.0%,5.0% of the body weight,(BW) day-1 and to satiation) for 60 days. Specific growth rate (SGR) was highest at 5.0% ration in b...

[ 4 ] - اثرات غنی سازی آرتمیا با عصاره جلبک دریایی پادینا (Padina sp. ) بر بقاء و رشد پست لارو میگوی سفید غربی (Litopenaeus vannamei)

هدف از این مطالعه بررسی اثر غنی سازی ناپلی آرتمیا با عصاره جلبک دریایی پادینا Padina sp. بربقاء و رشد پست لارو میگوی سفید غربی Litopenaeus vannamei)) بوده است. آزمایشات انجام شده در قالب یک طرح کاملا" تصادفی در قالب 3 تیمار غذایی و هر تیمار شامل 3 تکرار، در 9 مخزن 30 لیتری آب صورت پذیرفت. ناپلی‌های آرتمیا به میزان 2/0 و 4/0 گرم در لیتر از امولوسیون عصاره جلبک دریایی پادینا غنی‌سازی شده و لاروها...

[ 5 ] - بررسی هماوری و کیفیت تخم در ارتباط با برخی پارامترهای زیستی در ماهی قزل آلای رنگین کمان(Oncorhynchus mykiss) (مطالعه موردی: مرکز تکثیر و پرورش شهید مطهری یاسوج)

چکیده به منظور بررسی هماوری و کیفیت تخم در ارتباط با برخی پارامترهای زیستی ماهیان مولد قزل آلای رنگین کمان (Oncorhynchus mykiss) با سنی بین 7-2 سال و وزنی بین 02/3 – 78/0 کیلوگرم در یک مطالعه موردی در مرکز تکثیر ماهی قزل آلای شهید مطهری یاسوج مورد بررسی قرار گرفتند. نمونه برداری در طی عملیات تکثیر، در 3 مرحله و در هر مرحله 27 ماهی مولد ماده انجام گرفت. طول و وزن ماهی مولد ماده، وزن کل تخمک ...

[ 6 ] - Effects of intermittent feeding on compensatory growth, feed intake and body composition in Asian sea bass (Lates calcarifer)

This experiment was conducted to investigate the effects of various starvation and refeeding periods on growth, feed utilization and body composition in Asian sea bass (Lates calcarifer) with an average initial weight of 30.26±1.4 g (mean±SE). The fish were exposed to three different regimes: the control group fed twice daily to apparent satiation throughout the experiment (C), th...

[ 7 ] - Effect dietary energy levels and feeding rates on growth and body composition of fingerling rainbow trout (Oncorhynchus mykiss)

Growth, feed conversion ratio and fillet composition of rainbow trout (initial weight of 9.99±0.109)were investigated in a 6x2 factorial design experiment employing two levels of digestible energy (DE) (2900 and 3500kcal.kg-1) and six feeding rates (1.0%, 2.0%, 3.0%, 4.0%,5.0% of the body weight,(BW) day-1 and to satiation) for 60 days. Specific growth rate (SGR) was highest at 5.0% rati...

[ 8 ] - بررسی اثرات کوتاه مدت نفت خام ایران بر برخی فاکتورهای بیوشیمیایی خون بچهماهی باس آسیایی (Lates calcarifer)

نشت تصادفی نفت در دریا اثرات زیادی بر اکوسیستم‌های دریایی داشته است. لذا مطالعه حاضر با هدف ارزیابی اثر نفت خام ایران بر برخی از پارامترهای بیوشیمیایی خون ماهی باس دریایی (Lates calcarifer) انجام شد. 225 قطعه بچه ماهی با میانگین وزنی 42/1± 22/7 گرم و میانگین طولی 47/3 ± 4/8 سانتی‌متر در پنج تیمار با سه تکرار در معرض تیمارهای آزمایشی قرار گرفتند. تیمارهای آزمایشی شامل گروه شاهد، نفت خام پخش‌شده ...

[ 9 ] - Effects of enriched Artemia with n–3 long-chain polyunsaturated fatty acids on growth performance, stress resistance and fatty acid profile of Litopenaeus vannamei postlarvae

A 15-day study was conducted to evaluate the effects of Artemia metanauplii enriched with two commercial supplements (Easy DHA-Selco and S. presso) which contained high levels of n–3 long chain polyunsaturated fatty acids (n–3 LC-PUFA) on growth performance, stress resistance and fatty acid profile of Litopenaeus vannamei post larvae (PL). In this regard, PL were fed with three different types ...

[ 10 ] - Effects of enriched Artemia with n–3 long-chain polyunsaturated fatty acids on growth performance, stress resistance and fatty acid profile of Litopenaeus vannamei postlarvae

A 15-day study was conducted to evaluate the effects of Artemia metanauplii enriched with two commercial supplements (Easy DHA-Selco and S. presso) which contained high levels of n–3 long chain polyunsaturated fatty acids (n–3 LC-PUFA) on growth performance, stress resistance and fatty acid profile of Litopenaeus vannamei post larvae (PL). In this regard, PL ...