بررسی اثرات مختلف جاذب سم طبیعی بر جوجه‌های گوشتی درگیر شده با سم آفلاتوکسینB1

نوع مقاله: بهداشت خوراک دام، طیور و آبزیان

نویسنده

گروه علوم دامی، دانشکده کشاورزی دانشگاه ملایر دانشکده، ملایر، ایران

چکیده

زمینه مطالعه: آلودگی آفلاتوکسین در دام و طیور و انتقال آن به انسان در رخداد بیماری های مختلف مانند هپاتیت و سیروز کبدی اهمیت داشته و یافتن روش‌هایی برای کاهش جذب سموم در بافت‌های دام و طیور در افزایش سلامت محصولات دامی اثر گذار می‌باشد. هدف: بررسی اثرات جاذب سم طبیعی در جوجه‌های آلوده به سم آفلاتوکسینB1 بر خصوصیات عملکردی، ایمنی و ریخت شناسی روده می‌باشد. روش کار: دراین پژوهش، 400 قطعه جوجه یک روزه گوشتی، در 4 تیمار با 5 تکرار و20 جوجه در هر تکرار در قالب طرح کاملاً تصادفی به مدت 42 روز مورد مطالعه قرار گرفتند. گروه های آزمایشی شامل: 1-شاهد منفی (جیره پایه بدون آفلاتوکسینB1)، 2- شاهد مثبت (جیره پایه + 6/0mg/kg آفلاتوکسین(B1، 3- جیره پایه به همراه 1 g/kg جاذب سم طبیعی 4- جیره همانند شاهد مثبت ولی حاوی 1g/kg جاذب سم طبیعی تهیه شدند. نتایج: وجود آفلاتوکسین B1 در جیره به طور معنی‌داری سبب کاهش تمامی شاخص های عملکردی در سن 42 روزگی شد. مصرف جاذب سم توانست اثرات منفی آفلاتوکسین را کاهش داده و وزن بدن، مصرف خوراک و ضریب تبدیل غذایی را نسبت به گروه آلوده شده با سم بهبود دهد (05/0≥P). بهبود پاسخ ایمنی علیه بیماری‌های نیوکاسل و آنفلوآنزا در گروه‌های دریافت کننده جاذب سم طبیعی در مقایسه با گروه آلوده شده با آفلاتوکسین مشاهده شد (05/0≥P). کاهش معنی‌دار شمارش اشرشیاکولی و کلی فرم در تیمار چهارم نسبت به تیمار دوم مشاهده گردید (05/0≥P ). افزایش معنی‌دار شاخص پرز و کاهش تعداد سلول‌های گابلت در گروه آلوده به آفلاتوکسین به همراه جاذب سم طبیعی نسبت به شاهد مثبت دیده شد (05/0≥P). نتیجه گیری نهایی: نتایج حاصل از این مطالعه بیانگر تاثیر مثبت جاذب ترکیبی مورد بررسی در کاهش اثرات سوء آلودگی جیره با آفلاتوکسین بود.

کلیدواژه‌ها


عنوان مقاله [English]

Impact of Application of Natural Toxin Binder on Performance, Humoral Immune Response, Cecal Microbial Population and Chages in Small Intestine Mophology of Broilers Fed with Diet Contaminated with Aflatoxin B1

نویسنده [English]

  • Milad Manafi
1Department of Animal Sciences, Faculty of Agricultural Sciences, Malayer University, Malayer, Iran
چکیده [English]

BACKGROUND: Aflatoxin contamination in animal and poultry and its carry over to human beings is important in causing different diseases like Hepatitis and Liver Cirrhosis and finding methods to lessen toxin adsorption in animal and poultry tissues has a direct impact on health of animal products. OBJECTIVES: Evaluating the impact of natural toxin binder in broilers contaminated with aflatoxin B1 on performance, immunity and morpholgy of intestine. METHODS: 400 day-old broiler chicks under 4 treatments, 5 replicates and 20 chicks per replicate in completely randomized design manner were studied for 42 days. Experimental treatments were: 1- negative control (basal diet with out aflatoxin contamination); 2- positive control (basal diet + 0.6 mg/kg aflatoxin B1; 3- basal diet along with 1g/kg natural toxin binder and 4- basal diet + 1g/kg natural toxin binder. RESULTS: Presence of aflatoxin in diet reduced all performance indexes significantly (p

کلیدواژه‌ها [English]

  • Broilers
  • performance
  • Intestinal morphology
  • Natural toxin binder
  • Aflatoxicosis
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