نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد، گروه علوم دامی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران.
2 دانشیار، گروه علوم دامی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران.
چکیده
تاثیر کیلات مس- متیونین و اسانس پونه کوهی در مقایسه با آنتی‌بیوتیک بر عملکرد، کیفیت گوشت، پاسخ ایمنی و فراسنجه‌های بیوشیمیایی خون با استفاده از 240 قطعه جوجه گوشتی راس 308 در یک آزمایش فاکتوریل 2×3 با سه سطح فزودنی (فاقد افزودنی، 500 میلی‌گرم در کیلوگرم آنتی‌بیوتیک فلاووفسفولیپول و 100 میلی‌گرم در کیلوگرم جیره اسانس پونه کوهی) و کیلات مس- متیونین (صفر و 118 میلی‌گرم در کیلوگرم جیره) در قالب طرح کاملا تصادفی با شش تیمار و چهار تکرار و 10 پرنده در هر تکرار بررسی شد. در پایان دوره (42 روزگی) از هر تکرار یک پرنده نر برای انجام آزمایشات کیفیت گوشت، پاسخ ایمنی و فراسنجه‌های بیوشیمیایی خون نمونه‌گیری شد. پرندگانی که جیره حاوی کیلات مس- متیونین با فلاووفسفولیپول دریافت کردند وزن زنده بالاتری نشان دادند (0/05>P). پرندگانی که با جیره حاوی کیلات مس- متیونین تغذیه شدند، افزایش وزن بیشتر و ضریب تبدیل بهتری داشتند (0/05>P). همچنین پرندگان تغذیه شده با جیره‌های فاقد افزودنی و آنتی‌بیوتیک با و بدون کیلات مس- متیونین در مقایسه با سایر گروه‌ها اکسیداسیون اسید‌های چرب بیشتری داشتند (0/05>P). در سنین 28 و 42 روزگی بالاترین پاسخ ایمنی (تیتر آنتی‌بادی) در گروه کیلات مس- متیونین با اسانس پونه مشاهده شد (0/05>P). نشان داده شد، اسانس پونه به ترتیب سبب کاهش و افزایش LDL و HDL خون گردید (0/05>P). نتایج این پژوهش نشان داد، استفاده از کیلات مس- متیونین با آنتی‌بیوتیک، باعث بهبود بهره‌وری تولید و استفاده مکمل‌های کیلات مس- متیونین و اسانس پونه در جیره پرندگان سبب بهبود کیفیت گوشت و افزایش ایمنی گردید.
کلیدواژه‌ها
عنوان مقاله [English]
Evaluation effect of copper-methionine chelate, oregano essential oil on performance, meat quality, immune response and blood biochemical parameters of broiler chickens
نویسندگان [English]
- Amin Saeid 1
- Mohsen Afsharmanesh 2
- Mohamad Salarmoini 2
1 M.Sc. Student, Department of Animal Sciences, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
2 Associate Professor, Department of Animal Sciences, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
چکیده [English]
The effect of copper-methionine chelate and oregano essential oil in comparison to antibiotics on performance, meat quality, immune response and blood biochemical parameters were evaluated using 240 Ross 308 broilers in a 2×2×2 factorial experiment in a completely randomized design with four replicates and 10 birds per replicate. The treatments included three incremental levels (No additives, 500 mg/kg flavofospholipol antibiotics and 100 mg/kg oregano essential oil of diet) and copper-methionine chelate (0 and 118 mg/kg diet). At the end of the period (42th day), one male bird was sampled from each replicate for exploring meat quality, immune response and blood biochemical parameters. Birds fed a diet containing coppermethionine chelate with flavophospholipol showed higher live weight (P<0.05). Birds fed a diet containing copper-methionine chelates had higher weight gain and better conversion ratio (P<0.05). Also, birds fed diets without additives and antibiotics with and without copper-methionine chelates had more fatty acid oxidation than other groups (P<0.05). At 28 and 42 days of age, the highest immune response (antibody titer) was observed in the copper-methionine chelate group with oregano essential oil (P<0.05). It was shown that oregano essential oil decreased and increased LDL and HDL in the blood (P <0.05), respectively. The results of this study showed that the use of copper-methionine chelate with antibiotics improved production efficiency and the use of copper-methionine chelate and oregano essential oil supplements in poultry diets improve meat quality and increased safety.
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