ارزیابی عملکرد رشد، برخی از پارامترهای خونی و ایمنی بچه ماهی کپور معمولی (Cyprinus carpio) تغذیه‌شده با مکمل اسیدی فایر

نوع مقاله : تغذیه

نویسندگان

1 گروه شیلات، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

2 گروه شیلات، واحد تالش، دانشگاه آزاد اسلامی، تالش، ایران

چکیده

در این تحقیق، تأثیر مکمل اسیدی ­فایر بر رشد، شاخص‌های خونی و ایمنی بچه ماهیان کپور معمولی (Cyprinus carpio) مورد مطالعه قرار گرفت. طرح آزمایشی کاملاً تصادفی در قالب چهار تیمار هر یک در سه تکرار طراحی گردید. مکمل اسیدی­ فایر در چهار سطح، 0، 2، 4 و 8 گرم در کیلوگرم به جیره پایه اضافه گردید. تعداد 84 عدد بچه ­ماهی­ کپورمعمولی با میانگین وزنی 2/08±18/30 گرم با تراکم 7 عدد در 12 آکواریوم 40 لیتری به­ مدت 60 روز تغذیه شدند. نتایج نشان داد که بیش­ ترین وزن نهایی، درصد افزایش وزن بدن، میانگین رشد روزانه، سرعت رشد ویژه و کم­ ترین میزان ضریب تبدیل غذایی در تیمار 8 گرم در کیلوگرم مکمل اسیدی ­فایر مشاهده شد (0/05>p). اختلاف معنی‌ داری در میزان ضریب چاقی و نرخ زنده­ مانی ماهیان بین تیمارها ثبت نگردید (0/05<p). تیمار 8 گرم در کیلوگرم مکمل اسیدی ­فایر در تعداد گلبول‌ های قرمز، مقادیر هماتوکریت، هموگلوبین و تعداد نوتروفیل اختلاف معنی­ دار آماری (0/05>p) با بقیه تیمارها داشت. هم­ چنین همین تیمار بیش ­ترین  تعداد گلبول‌ های سفید و تعداد منوسیت را به خود اختصاص داد (0/05<p). ­از طرف دیگر، بالاترین مقادیر (IgM) ایمنوگلوبولین M و لیزوزیم در تیمار 2­ گرم در کیلوگرم مکمل اسیدی ­فایر مشاهده گردید که اختلاف معنی‌ داری را نشان ندادند (0/05<p). براساس یافته ­های به‌ دست‌ آمده می‌توان اظهار نمود که مکمل اسیدی ­فایر می­ تواند باعث ارتقای عملکرد رشد و بهبود برخی از پارامترهای خونی و ایمنی ماهی­ کپور معمولی گردد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Growth Performance, Some Hematological and immune Parameters of Common Carp (Cyprinus carpio) Fingerlings Fed Acidifier Supplementation

نویسندگان [English]

  • Samad Asgharzadeh 1
  • Reza Taati 2
1 Department of Fisheries, Rasht Branch, Islamic Azad University, Rasht, Iran
2 Department of Fisheries, Talesh Branch, Islamic Azad University, Talesh, Iran
چکیده [English]

In this research, it was studied the effect of acidifier supplementation on growth, hematological and immune indices of common carp (Cyprinus carpio) fingerlings. A completely randomized design was performed with four treatments in three replicates. Acidifier supplementation was added in four levels including 0, 2, 4, and 8 g/kg to the basal diet. A total number of 84 common carp fingerlingsweighing 18.30±2.08g were fed and kept at a density of 7 fish per aquarium in twelve 40-L aquaria for 60 days. Results showed that the highest final weight, body weight increase, average daily growth, specific growth rate and the lowest feed conversion ratio were observed at the level of 8g/kg acidifier supplementation (P<0.05). No significant difference was recorded in condition factor and survival rate among the treatments (P>0.05). Acidifier supplementation at the level of 8 g/kg showed significant difference (P<0.05) in RBC, hematocrit, hemoglobin and neutrophil counts with other treatments. Also, this treatment had the highest non-significant WBCs and monocyte counts (P>0.05). On the other hand, the highest values of IgM and lysozyme were showed in treatment 2g/kg acidifier supplementation (P>0.05). Based on obtained findings, it can be declared that acidifier supplementation can promote growth performance and improve some hematological and immune indices of common carp.

کلیدواژه‌ها [English]

  • Common carp
  • Acidifier supplementation
  • Growth
  • Blood
  • Immunity
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