اثر منابع مختلف الیاف نامحلول بر عملکرد و جمعیت میکروبی روده کور جوجه‌های گوشتی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد

2 عضو هیئت علمی

3 عضو هیئت علمی دانشگاه بوعلی سینا

چکیده

اثر منابع مختلف الیاف نامحلول بر عملکرد، خصوصیات دستگاه گوارش و جمعیت میکروبی روده کور، با استفاده از 320 قطعه جوجه گوشتی یکروزه سویه راس 308 از سن یک تا 24 روزگی در قالب طرح کاملا تصادفی با چهار تیمار، چهار تکرار و 20 قطعه جوجه در هر تکرار بررسی شد. تیمارهای آزمایشی شامل شاهد (ذرت-کنجاله سویا) که با استفاده از کاه گندم فرآوری شده، پوسته آفتابگردان و پوسته سویا هر یک به مقدار سه درصد رقیق شد. خوراک مصرفی تحت تاثیر تیمارهای آزمایشی از سن یک تا 24 روزگی قرار نگرفت. تیمار کاه گندم فرآوری شده، میانگین افزایش وزن بدن را نسبت به پوسته سویا به طور غیرمعنی‌داری افزایش داد. بعلاوه، ضریب تبدیل در تیمار کاه گندم فرآوری شده نسبت به تیمارهای پوسته آفتابگردان و سویا بهبود یافت (05/0>P) ولی تفاوت معنی‌داری نسبت به تیمار شاهد مشاهده نشد. اثر تیمارها بر وزن اندام‌های گوارشی و خصوصیات سنگدان در سن 24 روزگی معنی‌دار نبود. منابع مختلف الیاف نامحلول، تعداد باکتری‌های لاکتوباسیلوس روده کور را افزایش (05/0>P) و تعداد باکتری‌های اشریشیاکلی روده کور را نسبت به تیمار شاهد به طور غیرمعنی‌داری کاهش دادند. بر اساس نتایج حاصل، رقیق نمودن جیره با استفاده از سه درصد الیاف نامحلول تاثیر منفی بر عملکرد رشد جوجه‌های گوشتی نداشت ولی جمعیت میکروبی مفید روده کور را بهبود بخشید.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of different sources of insoluble fiber on performance and cecal microbial population of broiler chickens

نویسندگان [English]

  • sevda jangi aghdam 1
  • sara mirzaie goudarzi 2
  • ali asghar saki 2
  • pouya zamani 3
1 دانشگاه بوعلی سینا همدان
2 دانشگاه بوعلی سینا همدان
3 assistant professor
چکیده [English]

 
The effect of different sources of insoluble fiber on performance, gastrointestinal tract (GIT) traits and cecal microbial population was studied with 320 day-old chickens, Ross 308 broilers from 1 to 24 days of age in a completely randomized design by 4 treatments, 4 replicates, and 20 chickens in each replication. Experimental treatments including: control (corn-soybean meal)which was diluted by 3% of treated wheat straw, sunflower and soy hulls. Feed intake was not affected by treatments from 1 to 24 days of age. Body weight gain increasedin treated wheat straw group relative to soy hull group. In addition, feed conversion was improved in broiler fedding by treated wheat straw compared to sunflower and soy hulls (P<0.05) but its difference with control treatment was not significant. Weight of the GIT organs and gizzard characteristics was not affected by treatments at 24 days of age. Insoluble fiber sources increased lactic acid bacteria (P<0.05) and decreased Escherichia coli in the ceca realtive to control diet. Based on current results, diet dilution with 3% insoluble fiber did not have negative effect on growth performance but improved beneficial ceca microflora in broiler chickens.

کلیدواژه‌ها [English]

  • Broiler Chicken
  • Gastrointestinal tract characteristics
  • Soy hull
  • Sunflower hull
  • wheat straw
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