اثر پرتوتابی گاما، الکترون و مادون قرمز بر ارزش غذایی و عوامل ضد تغذیه‌ای دانه سورگوم

Subject Areas : Camel

M. Rousta ¹ , A.A. Sadeghi ² , P. Shawrang ³ , M. Aimn Afshar ⁴ , M. Chamani ⁵

1 - Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 - Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
3 - Radiation Applications Research School, Nuclear Science and Technology Research Institute, Atomic Energy Organization of Iran, Karaj, Iran
4 - Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
5 - Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran

Received: 2013-12-25 Accepted : 2014-02-15 Published : 2014-12-01

Keywords: سورگوم, ترکیبات شیمیایی, پرتوتابی, عوامل ضد تغذیه‌ای,

Abstract :

مطالعه حاضر اثرات پرتوتابی بر کیفیت غذایی و عوامل ضد تغذیه‌ای دانه سورگوم را مورد بررسی قرار می‌دهد. اثر پرتوتابی الکترون و گاما در سطوح 10، 20 و 30 کیلوگری و همچنین پرتوتابی مادون قرمز در مدت زمان 60، 90 و 120 ثانیه بر ترکیبات شیمیایی، میزان و قابلیت دسترسی مواد معدنی، قابلیت هضم آزمایشگاهی نشاسته و پروتئین، مقدار کل ترکیبات فنولی، فیتات و تانن دانه سورگوم بررسی شد. نتایج این پژوهش نشان داد که ترکیبات شیمیایی دانه سورگوم تحت تأثیر پرتوتابی تغییری نخواهد کرد (05/0P>). پرتوتابی گاما، الکترون و مادون قرمز موجب افزایش قابلیت هضم نشاسته به ترتیب به میزان 8/3، 4/5 و 8/6 درصد شد. پرتوتابی مادون قرمز موجب کاهش قابلیت هضم پروتئین به میزان 23 درصد شد، در حالیکه پرتوتابی گاما و الکترون موجب افزایش قابلیت هضم پروتئین خام دانه سورگوم به ترتیب به میزان 6/6 و 5 درصد شد (05/0P>). میزان اسید فایتیک و تانن به طور معنی‌داری به وسیله پرتوتابی کاهش یافت در حالیکه میزان کل ترکیبات فنولی در مقایسه با نمونه شاهد افزایش پیدا کرد. نتایج نشان داد که میزان و قابلیت دسترسی مواد معدنی دانه سورگوم تغییر معنی‌داری نکرد به استثناء افزایش معنی‌دار در قابلیت استخراج کلسیم، فسفر، روی و آهن.

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