تأثیر جایگزینی سبوس گندم با پودر پوست سبز بادام بر شاخص‌های عملکرد رشد لارو Zophobas morio (Col.: Tenebrionidae)

نوع مقاله : مقاله پژوهشی

نویسنده

گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد تاکستان، ایران

چکیده

پوست بادام محصول جانبی صنعت فرآوری بادام می‌باشد که اثر آن در تغذیه حشرات ناشناخته مانده است. سوپرورم (Zophobas morio)  حشره‌ای خوراکی با ارزش غذایی بالا و توانایی زیست‌تبدیلی پسماندهای آلی است. پژوهش حاضر با هدف بررسی تأثیر جایگزینی سبوس گندم با پودر پوست سبز بادام در سطوح 0، 25، 50، 75 و 100 درصد (وزنی/وزنی) بر شاخص‌های عملکرد رشد لاروهای سن ششم سوپرورم در شرایط آزمایشگاهی به مدت شش هفته انجام پذیرفت. نتایج به‌دست آمده نشان داد که جایگزینی 25 درصد از جیره با پوست بادام، تأثیر منفی معنی‌داری بر شاخص‌های کلیدی رشد شامل نرخ رشد نسبی (0/0137در مقایسه با 0/0154 میلی‌گرم/میلی‌گرم/روز در شاهد)، درصد افزایش وزن (78/33در مقایسه با 87/81درصد)، نرخ تبدیل غذا (3/27 در مقایسه با 2/92) و نرخ زنده‌مانی (93 در مقایسه با 100 درصد) در پایان روز 42 نداشت (P>0.05). با افزایش سطح جایگزینی به مقادیر 50 درصد و بالاتر، تمام شاخص‌های عملکرد به‌طور معنی‌داری کاهش یافت و تولید فضولات افزایش نشان داد؛ به‌طوری‌که در تیمار 100 درصد، نرخ رشد نسبی به صفر نزدیک شد، درصد افزایش وزن به 14/88- درصد رسید. نرخ زنده‌مانی نیز به 38 درصد کاهش یافت و نرخ تولید فضولات از 1/81 در شاهد به 4/95 افزایش یافت. یافته‌های این پژوهش نشان می‌دهد که پوست سبز بادام به دلیل ترکیب شیمیایی نامتوازن (پروتئین پائین و فیبر بالا)، گزینه مناسبی برای پرورش انبوه سوپرورم محسوب نمی‌شود و کاربرد آن فقط در سطوح پائین (تا ۲۵٪) و با هدف مدیریت پسماند کشاورزی قابل توجیه است.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of replacing wheat bran with green almond hull powder on growth performance indices of Zophobas morio (Col.: Tenebrionidae) larvae

نویسنده [English]

  • Abas Arbab
Department of Plant Protection, Faculty of Agriculture, Islamic Azad University, Takestan branch, Iran
چکیده [English]

Almond hull is a by-product of the almond processing industry, and its potential for insect nutrition remains unknown. The superworm (Zophobas morio) is an edible insect species with high nutritional value and the ability to bioconvert organic wastes. This study aimed to investigate the effect of replacing wheat bran with green almond hull powder at levels of 0, 25, 50, 75, and 100% (w/w) on the growth performance indices of sixth-instar superworm larvae under laboratory conditions for six weeks. The results showed that replacing 25% of the diet with almond hull had no significant negative effect on key growth indices, including relative growth rate (0.0137 vs. 0.0154 mg/mg/day in the control), weight gain percentage (78.33% vs. 87.81%), feed conversion ratio (3.27 vs. 2.92), and survival rate (93% vs. 100%) at the end of day 42 (p>0.05).Increasing the replacement level to 50% or more significantly reduced all performance indices and increased frass production; in the 100% treatment, relative growth rate approached zero, weight gain dropped to -14.88%, survival rate decreased to 38%, and frass production increased from 1.81 in the control to 4.95. The findings of this study show that green almond skin is not a suitable option for mass rearing of superworms due to its unbalanced chemical composition (low protein and high fiber), and its use is justified only at low levels (up to 25%) and for the purpose of agricultural waste management.
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کلیدواژه‌ها [English]

  • Agricultural waste
  • Waste management
  • nutritional indicators
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