نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکترا،گروه شیلات، واحد بابل، دانشگاه آزاد اسلامی، بابل، ایران

2 استادیار ، گروه شیلات، واحد بابل، دانشگاه آزاد اسلامی، بابل، ایران

3 استادیار،گروه شیلات، واحد بابل، دانشگاه آزاد اسلامی، بابل، ایران

4 دانشیار ، گروه تغذیه، پژوهشکده اکولوژی دریای خزر،ساری، ایران

چکیده

این مطالعه به منظور بررسی تاثیر پروبیوتیک بیوآکوا بر شاخص‌های کیفی ماهیان کپور نقره‌ای و پارامترهای غیرزیستی و زیستی آب محیط پرورش انجام شد. ماهیان کپور نقره‌ ای به ترتیب با میانگین وزنی اولیه 1/0±0/1 گرم با تیمارهای آزمایشی منتخب برای 4 ماه مورد پرورش قرار گرفتند. در این مطالعه تیمارهای شامل شاهد ( تیمار شاهد) ، T1 (250گرم در هکتار پروبیوتیک بیوآکوا) ، T2 (350گرم در هکتار پروبیوتیک بیوآکوا) و T3 ( 450 گرم در هکتار پروبیوتیک بیوآکوا) که به آب استخرهای خاکی اضافه شدند. بر اساس این نتایج میزان نرخ رشد ویژه (SGR)، نرخ رشد روزانه (DGR)، وزن اکتسابی (WG)، ضریب تبدیل غذایی (FCR) و درصد بازماندگی در تیمار 3 (450 گرم/هکتار) نسبت به گروه شاهد و تیمارهای 1 (250 گرم در هکتار ) و 2 (350 گرم در هکتار) اختلاف معنی داری را نشان داد (05/0P<). همچنین اختلاف معناداری در ترکیبات شیمیایی لاشه (درصد پروتئین خام و درصد رطوبت) ماهیان کپور نقره ای تیمارهای 2 و 3 در مقایسه با تیمارهای شاهد و 1 وجود داشت (05/0P<). علاوه بر آن استفاده از 450 گرم بیوآکوا/هکتار (در تیمار 3) موجب کاهش معنادار مقادیر TSS، BOD، COD، نیتریت و فسفات آب در مقایسه با سایر تیمارهای آزمایشی شد (05/0P<). نتیجه گیری شد ، اثرات پروبیوتیک بیوآکوا ، به ویژه در T3 (450 گرم در هکتار) بر عملکرد رشد ، مقدار تغذیه ، میزان بقا ، پارامترهای هماتولوژی و ترکیب لاشه کپور نقره مثبت بوده و توصیه می شود.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of Bio-Aqua probiotic on growth performance, chemical composition, hematological parameters of silver carp (Hypophthalmichthys molitrix) and non-biological parameters of water

نویسندگان [English]

  • Omid Ramzannezhad 1
  • Saber Vatandoust 2
  • Reza Changizi 2
  • Hamed Manouchehri 3
  • Reza Safari 4

1 PhD student, Department of Fisheries, Babol Branch, Islamic Azad University, Babol, Iran

2 Assistant Professor, Department of Aquaculture, Babol branch, Islamic Azad University, Babol, Iran

3 Assistant Professor, Department of Aquaculture, Babol branch, Islamic Azad University, Babol, Iran

4 Associate Professor , Department of Feeding, Caspian Sea Ecological Research Center, Sari, Iran

چکیده [English]

Influence of Bio Aqua probiotic was evaluated on quality indices of silver carp and some water parameters in pond culture. Fish weighting 1±0.1g were reared in different ponds include 3 doses of Bio Aqua in each one during 4 month. The treatments were Control, (T1:250 g/ha), (T2:350 g/ha) and (T3:450 g/ha). The obtained results showed that SGR(Specific Growth Rate , DGR( Daily Growth Rate ), WG( Weight Gain ), FCR( Feed Conversion Ratio ) and ( Survival Rate ) were significantly higher in T3 (p>0.05). Also, the result showed best condition of water quality (TTS, BOD, COD). Body composition analysis of fish (Crude protein) and hematological factors in T3 Treatment increased significantly.

کلیدواژه‌ها [English]

  • BioAqua probiotics
  • silver carp
  • Growth parameters
  • Body compositions
  • Hematological factors
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