تاثیر اضافه کردن کلرید کلسیم و گلوتامین به جیره و نقش آنها در غذاگیری و شاخصهای رشد ماهی کپور معمولی (Cyprinus carpio)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 1. دانشیار گروه شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران

2 2. دانشجوی دکترا شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران

3 3. دانش‌آموخته کارشناسی ارشد شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران

چکیده

استفاده از محرک­های غذایی در جیره آبزیان علاوه بر افزایش غذاگیری، منجر به کاهش مدت زمان تغذیه و در نتیجه کاهش هدر رفت غذا می­شود. در این مطالعه اثرات افزودن کلرید­کلسیم و اسیدآمینه آزاد گلوتامین بر میزان مصرف غذا، پارامترهای رشد و ترکیبات لاشه در کپور معمولی مورد بررسی قرار گرفت. تیمارهای غذایی مورد آزمایش شامل: غلظت 9/0 مولار کلرید کلسیم، غلظت 1/0 مولار اسید آمینه گلوتامین و غلظت ترکیبی از 9/0 مولار کلرید کلسیم با 1/0 مولار اسید آمینه گلوتامین و تیمار شاهد بودند که هر کدام در 3 تکرار انجام شد. نتایج حاصل از این مطالعه نشان داد که افزودن این ترکیبات به غذای کپور معمولی می­تواند باعث تغییر در پارامترهای رشد گردد. بطوریکه بالاترین میزان افزایش وزن و درصد افزایش وزن بدن در تیمار حاوی گلوتامین مشاهده شد که با شاهد تفاوت معنی­دار داشت (05/0P≤). بالاترین ضریب رشد روزانه و کمترین ضریب تبدیل غذایی بدون اختلاف معنی­دار با شاهد مربوط به تیمار اسید آمینه گلوتامین بود(05/0P≥). با توجه به نتایج بدست آمده می­توان بیان داشت که اسید آمینه فوق می­تواند به عنوان محرک غذایی در جیره کپور معمولی مورد استفاده قرار گیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of Dietary Calcium Chloride and Glutamine on Growth Parameters and Carcass Composition in Cyprinus carpio

نویسندگان [English]

  • Valiollah Jafari1 1
  • Sheyda Goli2* 2
  • Goli Nouri3 3
1 1. Associate professor, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
2 2. PhD student, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
3 3. MSc of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
چکیده [English]

Dietary food stimulants decrease feeding time and wasted food. In the present study, effects of adding calcium chloride and free amino acids glutamine to diet on food intake, growth performance and carcass composition of common carp were investigated. The examined food samples were 9.0 mM calcium chloride, 1.0 mM amino acid glutamine 9.0 mM calcium chloride and 1.0 mM glutamine amino acid and the control treatments. Each were performed with three replicates. The results demonstrated that these feed additives changed growth parameters in carp. The highest increase in weight gain and body weight percentage were found in the treatment of glutamine and then combined treatment being different significantly with those of the control group (P ≤ 0.05). The highest daily growth rate and the lowest feed conversion ratio were found in amino acid glutamine treatment which was not different significantly from those of the control (P ≥ 0.05). According to the results, these amino acids can used as food stimulants in diet of common carp.
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کلیدواژه‌ها [English]

  • common carp
  • Food Stimulant
  • Free Amino Acid
  • Glutamine
  • Calcium Chlor
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