تأثیر پپتیدهای زیست فعال دانه کینوا بر عملکرد،خصوصیات لاشه و سیستم ایمنی جوجه های گوشتی

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم دامی، دانشکده کشاورزی و منابع طبیعی، واحد قائمشهر، دانشگاه آزاد اسلامی، قائمشهر، ایران

10.22034/aej.2022.321426.2715

چکیده

تحقیق حاضر به منظور بررسی اثر پپتیدهای زیست فعال دانه کینوا بر عملکرد رشد، خصوصیات لاشه، وضعیت سیستم ایمنی و برخی از شاخص‌های بیوشیمیایی خون در جوجه‌های گوشتی انجام شد. بدین منظور تعداد 240 قطعه جوجه گوشتی سویه راس 308 در قالب طرح کاملاً تصادفی با 4 تیمار و 4 تکرار و ۱۵ قطعه جوجه در هر تکرار استفاده شد. توزیع تیمارها بین واحدهای آزمایشی به صورت کاملاً تصادفی انجام شد. تیمارهای آزمایشی شامل جیره شاهد (فاقدپپتید) و جیره شاهد به همراه مقادیر 50 ، 100 و 150 میلی‌گرم پپتید زیست‌ فعال دانه کینوا در کیلوگرم خوراک بود. طول دروه آزمایش 42 روز و پرندگان دسترسی آزاد به آب و غذا داشتند. در انتهای هر هفته وزن تلفات، خوراک مصرفی و نیز وزن جوجه‌های هر تکرار اندازه‌گیری شد و سپس ضریب تبدیل خوراک محاسبه گردید. در انتهای دوره خصوصیات لاشه و شاخص‌های بیوشیمیایی خون نیز مورد ارزیابی قرار گرفتند. نتایج آزمایش نشان داد که جیره‌های آزمایشی اثر معنی‌داری بر روی مصرف خوراک در دوره پایانی و کل دوره داشتند (0/05>P). بالاترین مقدار مصرف خوراک در پرندگان تغذیه شده با جیره حاوی 150 میلی‌گرم پپتید مشاهده شد. هم چنین پرندگان تغذیه شده با جیره حاوی 150میلی‌گرم پپتید در کیلو‌گرم خوراک، افزایش وزن و ضریب تبدیل خوراک بهتری نسبت به سایر گروه‌های آزمایشی داشتند (0/05>P). غلظت کلسترول، تری‌گلیسرید، LDL و HDL سرم خون جوجه های گوشتی، تحت تأثیر تیمارهای آزمایشی قرار نگرفت‌ ولی غلظت آلبومین در سرم خون جوجه‌های تغذیه شده با پپتید افزایش معنی‌داری را نشان داد (0/05>P). هتروفیل و لنفوسیت و تیتر آنتی‌بادی و نیز وزن بورس و طحال به عنوان اندام ایمنی تحت تاثیر تیمارهای آزمایشی قرار نگرفت ولی جوجه‌های تغذیه شده با جیره حاوی 150 میلی‌گرم پپتید در کیلوگرم جیره، بالاترین وزن نسبی طحال را دارا بودند. با توجه به نتایج تحقیق حاضر، پپتیدهای دانه کینوا می‌تواند باعث تحریک رشد، بهبود سیستم ایمنی و قابلیت هضم مواد مغذی در جیره‌ جوجه‌های گوشتی گردد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effects of Quinoa Seed bioactive peptides on performance ,carcass charactristics and immune system of broiler chickens

نویسندگان [English]

  • Mohammad Ali Jafari
  • Jalil Rezaei
Department of Animal Science, Faculty of Agriculture and Natural Resources, Qaemshahr Branch, Islamic Azad University, Qaemshahr , Iran
چکیده [English]

The purpose of this study was to evaluate the effects of Quinoa Seed bioactive peptides (QSBP) on performance, some blood parameters and immune system in broiler chicks. A total of 240 one-day-old Ross 308 broiler male chicks were randomly allocated to 4 dietary treatments with 4 replicates of 15 birds each. Birds were fed on basal diets (Control) or basal diets supplemented with 50, 100 and 150 mg Quinoa Seed bioactive peptides for 42 d of age. At the end of each week, the weight of mortality, feed intake and the weight of chickens in each replicate were measured then the feed conversion ratio was calculated, Finally, carcass charactristics and blood parameters were evaluated. Results showed that experimental diets had a significant effect on feed intake during finisher and total periods in compared with the control group. Highest feed intake observed in birds that received basal diet supplemented with 150 mg Quinoa Seed bioactive peptides per Kg . Also ,broilers received 150 mg QSBP /kg of diet have significantly higher body weight gain and better feed conversion ratio than the other experimental groups (P<0.05). Also ,broilers received 150 mg QSBP /kg to diet have significantly higher body weight gain and better feed conversion ratio than the other experimental groups (P<0.05)Experimental treatments did not impact serum concentrations of cholesterol, triglyceride, LDL and HDL in chicks, but serum concentrations of Albumine was higher in broiler chickens which received all experimental diets compared with control (P<0.05). Heterophil and lymphocyte and antibody titres were not affected by the experimental treatments. However, the highest relative weight of spleen observed in broilers which received 150 mg QSBP /kg. It can be concluded that QSBP may improved growth performance, immunity and nutrient digestibility in broiler chickens.

کلیدواژه‌ها [English]

  • Quinoa Seed
  • Bioactive
  • Performance
  • Carcass Charactristics
  • Immune system
  • Broiler Chickens

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فصلنامه محیط زیست جانوری
دوره 14، شماره 4
بهمن 1401
صفحه 325-332

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