اثر تنش فیزیولوژیکی و افزودن نانوذرات کروم به جیره بر عملکرد و صفات کیفی گوشت جوجه بلدرچین‌های ژاپنی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد، گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت‌ـایران

2 دانشیار، گروه علوم دام و طیور، دانشگاه تهران، پاکدشت‌ـ‌ایران

3 استادیار، گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت‌ـ‌ایران

چکیده

تأثیر نانوذرات کروم بر عملکرد و صفات کیفی گوشت بلدرچین ژاپنی تحت تنش فیزیولوژیکی با استفاده از 360 قطعه جوجه بلدرچین ژاپنی از 17 تا 35روزگی در شش تیمار، چهار تکرار، و 15 قطعه پرنده در هر تکرار بررسی شد. تیمارها شامل شاهد منفی (بدون تنش) و پنج تیمار تحت تنش فیزیولوژیکی حاوی سطوح گوناگون نانوذرات کروم (صفر، 200، 400، 800، و 1200 میکروگرم بر کیلوگرم جیره) بودند. از افزودن دگزامتازون به جیره (6/0 میلی‏گرم در کیلوگرم وزن بدن) برای ایجاد تنش فیزیولوژیک استفاده شد. تنش فیزیولوژیکی موجب کاهش مصرف خوراک، کاهش رشد، افزایش ضریب تبدیل غذایی، و افزایش مقدار مالون دی‏آلدهید (MDA) گوشت سینه و ران شد (05/0P<‏‏‏). مکمل‌کردن ‌جیرۀ پرندگان تحت تنش با سطوح ‌گوناگون نانوذرات کروم موجب بهبود خطی میانگین افزایش وزن روزانه (02/0P<)، کاهش خطی ضریب تبدیل غذایی (05/0P<)، میزان MDA گوشت سینه (04/0P<)، و ران (05/0P<) شد. نتایج موجود نشان داد که افزودن نانوذرات کروم به جیره تأثیر منفی تنش فیزیولوژیک بر عملکرد و کیفیت گوشت را کاهش می‏دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of physiological stress and dietary chromium nanoparticles supplementation on performance and meat quality traits of Japanese quail

نویسندگان [English]

  • Atefeh Berenjian 1
  • Seyed Davood Sharifi 2
  • Abdollah Mohammadi Sangcheshmeh 3
  • Shokoofeh Ghazanfari 3
1 Graduated M.Sc., Department of Animal and Poultry Science, College of Abouraihan, University of Tehran, Pakdasht, Iran
2 Associate Professor, Department of Animal and Poultry Science, College of Abouraihan, University of Tehran, Pakdasht, Iran
3 Assistant Professor, Department of Animal and Poultry Science, College of Abouraihan, University of Tehran, Pakdasht, Iran
چکیده [English]

Effects of chromium nano particles (NanoCr) on performance and meat quality of Japanese quail under physiological stress was determined by  using 360 birds in a completely randomized design with six treatments, four replicates and 15 birds per each, during  17- 35 d of age. The tratments were negative control (non-stressed), and five groups under physiological stress which fed on diets supplemented with different levels of NanoCr (0, 200, 400, 800 and 1200 µgkg-1). Dexamethasone (0.6 mgkg-1 BW) was added to diet for induction of physiological stress. Physiological stress reduced feed intake and growth, whereas increased feed conversion ratio (FCR) and thigh and breast muscles malondialdehyde (MDA) concentration (P<0.05). Stressed birds were fed on diets containing increased levels of NanoCr linearly improved weight gain (P< 0.02), and decreaced FCR (P< 0.05), MDA levels in breast (P< 0.04), and thigh muscles (P< 0.006). The results showed that supplementation of diet with NanoCr can alleviate the negative effects of physiological stress on performance and meat quality of quails.

کلیدواژه‌ها [English]

  • chromium nanoparticles
  • Japanese quail
  • Malondialdehyde
  • Meat quality
  • Physiological Stress
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