تاثیر دو پربیوتیک ای مکس اولترا و سلماناکس مایع به صورت تلقیح بر کیفیت آب، عملکرد رشد و ترکیبات لاشه بچه ماهیان انگشت قد کپورمعمولی (Cyprinus carpio) در سیستم بیوفلاک

The aim of this studieswas to investigate the effect of tow commercial prebiotic including a-Max ultra and liquid Celmanax in biofloc technology (BFT) based systems on water quality parameters, growth performance, feeding efficiency and carcass composition of Cyprinus carpio fry. For these porpoise, a number of ۲۴۰ C. carp fry with initial mean weight ۴.۰۹±۰.۷۰ g (±SD) in a completely randomized design was carried out with inoculation of ۰.۱ and ۰.۲ ml each of the prebiotics per liters of biofloc system and a control that was devoid of any substance for ۴۰ days. At the end of experiments, a significant difference was observed in water quality parameters in the treatments of biofloc systems (P>۰.۰۵). Measurements of growth parameters including: final weight, final length, velocity of weight, velocity of length, protein efficiency ratio, lipid efficiency ratio and feed conversion efficiency had a significant differences with control group (P<۰.۰۵). Maximum of carcass crude protein (۶۶.۶۱%) and minimum of crude lipid (۱۷.۸۹%) was shown in a biofloc system with inoculation of ۰.۲ ml/liter of liquid Celmanax. The protein and lipid efficiency ratio had a significantly increased in experimental prebiotic treatments (P<۰.۰۵). In conclusion, the result of these study indicated that the used of A-Max Ultra and liquid Celmanax prebiotics via inoculation into water system of common carp rearing in a biofloc system had a positive effects on water quality parameters, growth performance, feeding efficiency and carcasses composition in this species.

Keywords:

کپورمعمولی , بیوفلاک , پربیوتیک , تلقیح , نیتروژن آمونیاکی , پروتئین خام