نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد سازمان تحقیقات، ترویج و آموزش کشاورزی، موسسه تحقیقات علوم دامی کشور

2 سازمان تحقیقات، ترویج و آموزش کشاورزی، موسسه تحقیقات علوم دامی کشور

3 استادیار پژوهشی سازمان تحقیقات، ترویج و آموزش کشاورزی، موسسه تحقیقات علوم دامی کشور

4 پژوهشگاه ملی مهندسی ژنتیک

چکیده

این آزمایش به منظور ارزیابی اثرات اسانس کپسوله شده‌ پونه بر جمعیت میکروبی، مورفولوژی و طول و وزن قسمت‌های مختلف دستگاه گوارش جوجه‌های گوشتی آرین انجام شد. تعداد 625 قطعه جوجه گوشتی در قالب طرح کاملاً تصادفی با پنج تیمار و پنج تکرار از سن یک تا 42 روزگی مورد آزمایش قرار گرفتند. تیمار‌ها شامل: 1- تیمار شاهد بدون افزودنی، 2- تیمار شاهد + پروبیوتیک (1/0 گرم در کیلوگرم پروتکسین)، 3- تیمار شاهد + آنتی‌بیوتیک (15/0 گرم در کیلوگرم آویلامایسین)، 4- تیمار شاهد + اسانس پونه (2/0 گرم در کیلوگرم) و 5- تیمار شاهد + اسانس پونه‌ کپسوله شده (1 گرم در کیلوگرم) بودند. نتایج نشان داد صفات عملکردی جوجه‌ها در پایان 42 روزگی تحت تأثیر تیمار‌های آزمایشی قرار نگرفت. بیشترین جمعیت لاکتوباسیل‌ها در تیمار پونه کپسوله شده مشاهده شد (05/0PP)، طول و وزن سایر قسمت‌های دستگاه گوارش تحت تأثیر تیمار‌های آزمایشی قرار نگرفت. بالاترین مقدار طول دئودنوم در تیمار شاهد و کمترین در تیمار پروبیوتیک بود (05/0>P). وزن دئودنوم، طول ژژنوم، وزن ژژنوم و طول ایلئوم تحت تأثیر تیمار‌های آزمایشی قرار نگرفت. بالاترین مقدار وزن ایلئوم در تیمار شاهد و کمترین در تیمار آنتی‌بیوتیک دیده شد (05/0>P). با توجه به نتایج حاصل، به نظر می‌رسد فرم کپسوله شده اسانس تأثیر مطلوبی بر سلامت دستگاه گوارش دارد.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of essential oil encapsulated oregano on microbial population and morphology of intestinal tract in broiler chickens

نویسندگان [English]

  • vahed Ghasemloo 1
  • sayed abdoullah hosseini 2
  • hushang Lotfolahian 3

1 M.S of poultry nutrition Agricultural Research,Education and Extension Organization Animal Science Research Institute.

2 Associated proffssor Agricultural Research,Education and Extension Organization Animal Science Research Institute.

3 Assistant professor Agricultural Research,Education and Extension Organization Animal Science Research Institute

چکیده [English]

The aim of this experiment was to assess the effects of encapsulated oregano oil on microbial population, morphology, length and weight of different parts of digestive tract of Aryan broiler chicks. A total of 625 Arian broiler chicks were used in a completely randomized trail with 5 treatments and 5 replicates at the age of 1 to 42 days. Treatments were including: 1- basal diet (negative control), 2- basal diet+probiotic (0.1 g Protexin/kg), 3- basal diet+antibiotic (0.15g Avilamycin/kg), 4- basal diet+oregano oil (0.2 g/kg) and 5- basal diet+encapsulated oregano oil (1 g/kg). The results showed that broiler performance at the end of 42 days were not affected by treatments (p<0.05). The highest lactobacillillus colony numbers were observed in encapsulated oregano oil. The length of duodenum in probiotics group were lower than others groups (p<0.05). The length and weight of other parts of digestive tract except ileum weight were not affected by dietary treatments (p>0.05). Finally, according to result of intestinal microbial count, it seems that encapsulated oregano essential oil can improve the intestine microbial population and bird's health.

کلیدواژه‌ها [English]

  • Antibiotic
  • broiler
  • encapsulated oregano oil
  • Intestinal morphology
  • Microbial population
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