تاثیر پری‌بیوتیک‌های ایمکس اولترا و سلماناکس مایع بر متغیرهای رشد، نرخ ترشح آمونیاک، اوره و اتلاف انرژی در لاروهای ماهی آمور (Ctenopharyngodon idella Linnaeus. 1758)

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه شیلات، دانشکدة کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبد کاووس، ایران.

10.22059/jfisheries.2026.413827.1485

چکیده

مطالعة حاضر با هدف بررسی اثر دو پری‌بیوتیک تجاری ایمکس اولترا و سلماناکس مایع بر برخی متغیرهای رشد، میزان ترشح آمونیاک و اوره و همچنین اتلاف انرژی در لاروهای ماهی آمور (Ctenopharyngodon idella) از طریق مکمل‌سازی جیره‌ها به‌مدت 45 روز انجام شد. تعداد 1050 عدد لارو با میانگین وزنی 12/10±15/625 میلی‌گرم با جیره‌های مکمل شده توسط 1، 2 و 3 گرم ایمکس اولترا در هر کیلوگرم و سه سطح 1، 2 و 3 میلی‌لیتر سلماناکس مایع در هر کیلوگرم جیره تغذیه شدند و اثرات آنها با گروه شاهد (جیره فاقد پری‌بیوتیک) مقایسه شد در طول دورة آزمایش تغذیة لاروها به‌صورت روزانه تا حد سیری انجام شد. نتایج نشان داد که استفاده از پری‌بیوتیک‌های تجاری باعث افزایش معنی‌دار متغیرهای رشد و شاخص‌های تغذیه‌ای شد (0.05>P). هرچند، به‌صورت درون‌گروهی، تفاوت معنی‌داری بین تیمارهای آزمایشی وجود نداشت (0.05<P). دفع آمونیاک، اوره و انرژی اتلافی نیز در تیمارهای آزمایشی نسبت به گروه شاهد به‌طور معنی‌داری کاهش یافت (0.05>P). براساس یافته‌های به‌دست‌آمده، استفاده از پری‌بیوتیک‌های ایمکس اولترا و سلماناکس مایع در سطوح آزمایش شده، به‌ویژه در غلظت‌های بالا می ­تواند علاوه بر بهبود وضعیت رشد لاروهای ماهی آمور در کاهش دفع آمونیاک و اوره، اتلاف انرژی و مخارج انرژی موثر باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of dietary supplementation with A‑Max Ultra and Celmanax liquid prebiotics on growth performance, Ammonia and urea excretion rates, and energy loss in grass carp (Ctenopharyngodon idella Linnaeus, 1758) larvae

نویسندگان [English]

  • Sedigheh Khalili
  • Hojatollah Jafaryan
  • Hossein Adineh
  • Mohammad Farhangi
Department of Fisheries, Faculty of Natural Resource, Gonbad-e Kavous University, Golestan, Iran.
چکیده [English]

The present study was conducted to evaluate the effects of two commercial prebiotics, A‑max ultra and celmanax liquid, on selected growth parameters, ammonia and urea excretion, as well as energy loss in grass carp (Ctenopharyngodon idella) larvae through dietary supplementation for a period of 45 days. A total of 1050 larvae with a mean weight of 625.15 ± 10.12 mg were fed diets supplemented with 1, 2, and 3 g of A‑max ultra per kilogram of diet and three levels of 1, 2, and 3 mL of celmanax liquid per kilogram of diet, and their effects were compared with those of the control group (diet without prebiotic supplementation). During the experimental period, the larvae were fed daily to apparent satiation. The results showed that the use of commercial prebiotics significantly increased growth variables and nutritional indices (P<0.05). However, no significant differences were observed among the experimental treatments (P>0.05). Ammonia excretion, urea excretion, and energy loss were also significantly reduced in the experimental treatments compared with the control group (P<0.05). Based on the obtained findings, the use of A‑max ultra and celmanax liquid prebiotics at the tested levels, particularly at higher concentrations, can improve the growth performance of grass carp larvae and effectively reduce ammonia and urea excretion, energy loss, and energy expenditure.

کلیدواژه‌ها [English]

  • Prebiotic
  • Grass carp larvae
  • Growth rate
  • Ammonia and urea excretion
  • Energy loss
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