اثر رنگدانه لیکوپن بر عملکرد رشد، کارایی غذا و ترکیبات بیوشیمیایی بدن میگوی رودخانه‌ای شرق (1849,Macrobrachium nipponense (De Haan

نوع مقاله : مقاله کامل

نویسندگان

گروه شیلات، دانشکده منابع طبیعی، دانشگاه گیلان، صومعه سرا، گیلان، ایران

چکیده

مطالعه کنونی به منظور بررسی اثر سطوح مختلف رنگدانه لیکوپن بر روی شاخص‌های رشد، کارایی غذا و ترکیبات بیوشیمیایی بدن میگوی رودخانه‌ای شرق (Macrobrachium nipponense) انجام گرفت. در این پژوهش 225 قطعه میگو با میانگین وزن g 07/0±40/1 به‌ وسیله 5 تیمار غذایی شامل سطوح متفاوت لیکوپن صفر (شاهد)، 50، 100، 150 و mg/kg 200 لیکوپن جیره به مدت 8 هفته مورد غذادهی قرار گرفتند. در پایان دوره پرورش، میگوها توسط ترازوی دیجیتال زیست‌سنجی شدند و ترکیبات تقریبی بدن نمونه‌ها بر اساس روش AOAC مورد تجزیه قرار گرفت. یافته‌های حاصل نشان داد که جیره‌های حاوی رنگدانه لیکوپن، اختلاف معنی‌دار آماری را با تیمار شاهد از خود نشان دادند (05/0>p). درحالی‌که شاخص هپاتوسوماتیک، تحت تاثیر تیمارهای متفاوت لیکوپن قرار نگرفت (05/0<p). بیشترین افزایش وزن، میزان بقا و کمترین ضریب تبدیل غذایی در تیمار  mg/kg 200 لیکوپن جیره مشاهده شد. رطوبت، پروتئین و چربی لاشه دارای تفاوت معنی‌داری با تیمار شاهد بودند (05/0>p) ولی خاکستر تیمارهای آزمایشی، اختلاف معنی‌داری با تیمار شاهد نداشت (05/0<p). نتایج به دست آمده از این مطالعه نشان داد که افزایش سطوح لیکوپن جیره غذایی موجب بهبود شاخص‌های رشد و تغذیه‌ای میگوی رودخانه‌ای شرق شد و افزودن میزان mg/kg 200 لیکوپن به جیره غذایی با هدف بهبود عملکرد رشد، کارایی غذا و کیفیت لاشه این میگو پیشنهاد گردید.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of lycopene pigment on growth performance, feed efficiency and body composition of the Oriental River Prawn, Macrobrachium nipponense (De Haan, 1849)

نویسندگان [English]

  • M Ettefaghdoost
  • H Alaf Noveirian
Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran
چکیده [English]

The present research was conducted to investigate the effect of different levels of lycopene pigment on growth indices, feed efficiency and bio-chemical composition of Oriental river prawn (Macrobrachium nipponense). In this study, 225 prawns with mean weight of 1.40±0.07 gram were fed by 5 dietary treatments containing different levels of lycopene zero (control), 50, 100, 150 and 200 milligrams lycopene per kilogram diet for 8 weeks. At the end of culture period, prawns were biometry with a digital scale and approximate body composition of samples was analyzed according to the AOAC method. Results showed that the diets containing lycopene showed a significant difference with the control treatment (p<0.05). However, hepatosomatic index was not affected by different lycopene treatments (p>0.05). The highest weight gain, survival rate and lowest feed conversion ratio were observed in 150 milligrams lycopene per kilogram diet. Carcass moisture, protein and lipid were significantly different from control treatment (p<0.05) but the ash of experimental treatments had no significant difference with control treatment (p>0.05). The results of this study showed that increased levels of dietary lycopene improved the growth and nutritional indices of the Oriental river prawn and adding 200 milligrams per kilogram lycopene to the diet was suggested to improve the growth performance, feed efficiency and carcass quality of this prawn.

کلیدواژه‌ها [English]

  • Carcass composition
  • Feed efficiency
  • Growth Indices
  • Lycopene
  • Oriental river prawn

مراجع

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  • تاریخ دریافت: 06 تیر 1399
  • تاریخ بازنگری: 19 مرداد 1399
  • تاریخ پذیرش: 20 مرداد 1399

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