اثر سطوح متفاوت سیلی‏مارین بر عملکرد، خصوصیات لاشه و وضعیت آنتی‏اکسیدانی جوجه‏ های گوشتی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، دانشکدۀ علوم دامی و صنایع غذایی، دانشگاه کشاورزی و منابع طبیعی رامین، خوزستان‌ـ‌ایران

2 استادیار، دانشکدۀ علوم دامی و صنایع غذایی، دانشگاه کشاورزی و منابع طبیعی رامین، خوزستان‌ـ‌ایران

3 استاد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه شیراز، شیرازـایران

4 استاد، دانشکدۀ علوم دامی و صنایع غذایی، دانشگاه کشاورزی و منابع طبیعی رامین، خوزستان‌ـ‌ایران

چکیده

به منظور بررسی تأثیر سطوح متفاوت سیلی‏مارین (صفر، 100، و 200 میلی‏گرم در کیلوگرم جیره) بر عملکرد، خصوصیات لاشه، برخی فراسنجه‏های خونی، و وضعیت آنتی‏اکسیدانی جوجه‏های گوشتی از 120 قطعه جوجۀ گوشتی سویۀ راس 308 در سه تیمار با چهار تکرار و 10 قطعه جوجۀ گوشتی در هر تکرار در قالب طرح کاملاً تصادفی استفاده شد. نتایج آزمایش نشان‌دهندۀ آن است که استفاده از 200 میلی‏گرم سیلی‏مارین، وزن روزانه را در دورۀ آغازین افزایش و در کل دورۀ پرورش کاهش داد و ضریب تبدیل خوراک را در دورۀ آغازین، رشد، و کل دورۀ آزمایش افزایش داد (05/0P<). استفاده از سطوح 100 و 200 میلی‏گرم سیلی‏مارین در جیره، به‌ترتیب بازده لاشه و وزن نسبی سینه را افزایش داد (05/0P<). افزودن 200 میلی‏گرم سیلی‏مارین به جیره باعث افزایش معنی‏دار غلظت مالون‏دی‏آلدهید (05/0P <) و نسبت هتروفیل به لنفوسیت (01/0P<) و کاهش معنی‏دار فعالیت سوپراکسید دسموتاز (05/0P <) شد. براساس نتایج پژوهش حاضر، استفاده از سیلی‏مارین در جیرۀ جوجه‏های گوشتی در شرایط بدون تنش و بیماری، وزن نسبی لاشه و سینه را بهبود داد، ولی بر وضعیت اکسیداتیو پرنده اثری ندارد.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of different levels of silymarin on performance, carcass characteristics and antioxidant status in broiler chickens

نویسندگان [English]

  • Rohollah Ebrahimi 1
  • Tahereh Mohammadabadi 2
  • Mohsen Sari 2
  • Somayeh Sallari 2
  • Mohammadjavad Zamiri 3
  • Mohammadtaghi Beigi Nassiri 4
1 Ph.D. Candidate, College of Animal Science and Food Technology, Ramin Agriculture and Natural Resources University, Khouzestan, Iran
2 Assistant Professors, College of Animal Science and Food Technology, Ramin Agriculture and Natural Resources University, Khouzestan, Iran
3 Professor, Animal Reproduction, Animal Science Department, College of Agriculture, Shiraz University, Shiraz, Iran
4 Professor, College of Animal Science and Food Technology, Ramin Agriculture and Natural Resources University, Khuzestan, Iran
چکیده [English]

In order to investigate the effect of different levels of silymarin (0, 100 and 200 mg/kg diet) on
performance, carcass characteristics, blood parameters and antioxidant status, 120 day-old chicks were
assigned to 3 treatments with four replicates and 10 birds in each in a completely randomized design.
Results showed supplementation of 200 mg silymarin significantly decreased the body weight gain
(BWG) in starter (P<0.05) and whole period of experiment (P<0.01) and significantly increased feed
conversion ratio at starter (P<0.05), grower (P<0.05) and total rearing periods (P<0.01). Also, addition of
100 mg silymarin significantly increased the carcass relative weight (P<0.01) and supplementation of 200
mg silymarin significantly increased the breast relative weight (P<0.05). Furthermore, 200 mg silymarin
significantly increased the malondialdehyde and heterophil/ lymphocyte ratio and significantly decreased
superoxide dismutase (P<0.05). These results showed that supplementation of silymarin in diet under
normal condition, improved the carcass and breast relative weight, but no had effect on bird’s oxidative
status.

کلیدواژه‌ها [English]

  • antioxidant status
  • Broiler Chicken
  • carcass characteristics
  • performance
  • Silymarin
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