اثر غنی سازی جیره غذایی با اسید لاکتیک بر غلظت یون‌ها و پروتئین‌های پلاسما خون در ماهی قزل آلای رنگین کمان، Oncorhynchus mykiss

نوع مقاله : مقاله کامل علمی - پژوهشی

نویسنده

نویسنده مسئول، استادیار پژوهشی، سازمان تحقیقات، آموزش و ترویج کشاورزی، مؤسسه تحقیقات علوم شیلاتی کشور، مرکز تحقیقات ذخایر آبزیان آب‌های داخلی، گرگان.

چکیده

هدف از این تحقیق بررسی اثر افزودن اسید لاکتیک به جیره غذایی قزل آلای رنگین کمان بر غلظت مواد معدنی و پروتئینهای پلاسمای خون ماهی بود. به این منظور 4 جیره غذایی حاوی 0، 5، 10 و 20 گرم اسید لاکتیک در کیلوگرم جیره به مدت 8 هفته به ماهی ها داده شدند (سه مخزن برای هر جیره) . نتایج نشان داد که افزودن اسید لاکتیک به جیره غذایی اثر معنی داری روی غلظت کلسیم، فسفر، آهن، مس، روی، پروتئین کل و گلبولین پلاسما داشت (P < 0.05). ولی ایمنوگلبولین کل و آلبومین پلاسما تحت تاثیر افزودن اسید لاکتیک به جیره غذایی نبودند (P > 0.05). همه غلظت‌های اسید لاکتیک به طور معنی داری غلظت کلسیم پلاسما را افزایش دادند. فسفر پلاسما در تیمارهای 5 و 10 گرم اسید لاکتیک بالاتر از تیمار شاهد بودند. غلظت پلاسمایی آهن در تیمار 10 و 20 گرم اسید لاکتیک، مس در تیمار 20 گرم اسید لاکتیک و روی در تیمار 10 گرم اسید لاکتیک به طور معنی داری بالاتر از تیمار شاهد بودند. پروتئین کل و گلبولین پلاسما در تیمار 10 گرم اسید لاکتیک بالاتر از تیمار شاهد بودند. نتایج این تحقیق نشان می‌دهند که افزودن اسید لاکتیک به جیره غذایی قزل آلای رنگین کمان نقش موثری در افزایش غلظت مواد معدنی و پروتئین‌های پلاسما دارد. بر این اساس، غلظت 20-10 گرم در کیلوگرم اسید لاکتیک بهترین نتایج را داشته اند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of dietary lactic acid supplementation on plasma ions and proteins levels in rainbow trout, Oncorhynchus mykiss

نویسنده [English]

  • Seyyed Morteza Hoseini
Corresponding Author, Research Assistant Prof., Inland Waters Aquatics Resources Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Gorgan, Iran.
چکیده [English]

The aim of this study was to investigate the effect of adding lactic acid to the diet of rainbow trout on the plasma concentration of minerals and plasma proteins. For this purpose, 4 diets containing 0, 5, 10 and 20 g of lactic acid per kg of diet were prepared. 180 rainbow trout with an average weight of about 100 g were stored in 12 plastic tanks (150 L) and fed with each of the above diets (three tanks for each diet) for 8 weeks. The results showed that the addition of lactic acid to the diet had significant effects on the plasma concentrations of calcium, phosphorus, iron, copper, zinc, total protein and globulin (P <0.05). However, plasma total immunoglobulin and albumin were not affected by the addition of lactic acid to the diet (P> 0.05). All lactic acid concentrations significantly increased plasma calcium concentrations. Plasma phosphorus in 5 and 10 g of lactic acid treatments was higher than the control treatment. Plasma concentrations of iron in 10 and 20 g of lactic acid treatment, copper in 20 g of lactic acid treatment and zinc in 10 g of lactic acid treatment were significantly higher than the control treatment. Plasma total protein and globulin in 10 g of lactic acid treatment were higher than the control treatment. The results of this study show that the addition of lactic acid to the diet of rainbow trout has an effective role in increasing the concentration of plasma minerals and proteins. Accordingly, concentrations of 10-20 g / kg of lactic acid had the best results.

کلیدواژه‌ها [English]

  • Lactic acid
  • Diet
  • Rainbow trout
  • Blood
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