تاثیر ویتامین E و پودر بذر خارمریم بر سلامت کبد، فرآسنجه‏های سرم و شاخص‌های تولید در مرغ‌های تخمگذار

نوع مقاله : مقاله کامل

نویسندگان

1 دانشگاه لرستان

2 گروه علوم دامی، دانشگاه لرستان

چکیده

هدف از انجام این تحقیق، بررسی تأثیر پودر بذر خارمریم و ویتامین E بر سلامت کبد، شاخص‎های تولید و فرآسنجه‎های سرم در مرغ‎های تخم‌گذار بود. برای این منظور 72 قطعه مرغ تخم‌گذار از سویه های لاین (W36) با استفاده از شش تیمار، چهار تکرار و سه قطعه مرغ در هر تکرار به صورت یک آزمایش فاکتوریل 3×2 در قالب طرح کاملاً تصادفی به مدت شش هفته استفاده شد. ویتامین E در دو سطح (5 و 80 واحد بین‏المللی در کیلوگرم به ترتیب برابر و بیشتر از احتیاجات NRC) و پودر بذر خارمریم در سه سطح (صفر، 100 و mg/kg 200) به جیره اضافه شد. در هفته ششم مرغ‎های تغذیه شده با جیره حاوی ویتامین E بیش از مقدار توصیه شده NRC ضریب تبدیل کمتری داشتند (05/0>P). در هفته پنجم افزودن پودر خارمریم به مقدار mg200 به هر کیلوگرم جیره سبب بهبود معنی‎دار ضریب تبدیل غذایی شد (05/0>P). تاثیر پودر بذر خارمریم و ویتامین E بر شاخص‏های تولید مرغ‎های تخم‌گذار در کل دوره آزمایش معنی‎دار نبود. تاثیر پودر بذر خارمریم و ویتامین E بر کیفیت تخم‏مرغ و فرآسنجه‎های سرم معنی‎دار نبود. افزودن پودر بذر خارمریم به مقدار mg 200 به هر کیلوگرم جیره سبب کاهش معنی‎دار فعالیت آنزیم کبدی آلانین آمینو ترانسفراز شد (05/0>P). بطور کلی می‏توان بیان کرد که افزودن پودر بذر خارمریم و ویتامین E در سطح بیشتر از مقدار توصیه شده NRC به جیره مرغ‏های تخمگذار تاثیری در جهت بهبود شاخص‏های تولید و کیفیت تخم‏مرغ ندارد.

کلیدواژه‌ها

عنوان مقاله [English]

Effects of vitamin E and milk thistle powder (Silybum marianum) on liver healthy, serum parameters and production indices in laying hens

نویسندگان [English]

  • A. Karamali 1
  • B. Parizadian Kavan 2
  • M. Khaldari 2
  • B. Masouri 2
1 Department of Animal Science, Lorestan University, Khorramabad, Iran.
2 Department of Animal Science, Lorestan University, Khorramabad, Iran
چکیده [English]

The objective of this experiment was to investigate the effects of different levels of milk thistle powder and vitamin E on liver healthy, serum parameters and production indices in laying hens. The 2×3 factorial experiment was managed in a randomized complete design with 72 Hy- Line (W36) laying hens in six treatments and four replicates of three birds each. The experimental period lasted for a total of six weeks. Treatments included different levels of milk thistle powder (0, 100 and 200 mg/kg) and vitamin E (recommended by NRC; 5 mg/kg and more than recommended by NRC; 80 mg/kg). The effect of different levels of milk thistle powder and vitamin E on production indices were not significant in the throughout the experimental period. The best feed conversion ratio was observed in hens fed with rations included 80 mg/kg of vitamin E in the sixth week of experiment (p < 0.05). Laying hens were fed with milk thistle powder (200 mg/kg) had the best feed conversion ratio compared with the control group in the fifth week of experiment (p < 0.05). The effect of different levels of milk thistle powder and vitamin E on egg quality and serum parameters were not significant. Dietary milk thistle powder (200 mg/kg), as compared with the control, decreased serum activity of alanine aminotransferase (p < 0.05). In conclusion, diet supplementation with milk thistle powder (100 and 200 mg/kg) and vitamin E (more than recommended by NRC) had no positive effects on production indices and egg quality in laying hens.

کلیدواژه‌ها [English]

  • Egg
  • Laying hen
  • Liver
  • Milk thistle
  • Vitamin E

مراجع

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سابقه مقاله

  • تاریخ دریافت: 09 مرداد 1398
  • تاریخ بازنگری: 26 شهریور 1398
  • تاریخ پذیرش: 26 شهریور 1398

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