نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار مؤسسه تحقیقات علوم دامی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران

2 استادیار، موسسه تحقیقات علوم دامی، کرج، ایران.

3 دانش آموخته دکتری، مدیر علمی و فنی شرکت زیست تخمیر ماهان، تهران، ایران

4 دانش آموخته کارشناسی ارشد، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران

چکیده

این مطالعه به‌منظور ارزیابی اثرات افزودن سطوح مختلف سین­بیوتیک تولید داخل به آب آشامیدنی بر صفات تولیدی، خصوصیات لاشه و جمعیت میکروبی روده کوچک جوجه­های گوشتی انجام شد. تعداد 400 قطعه جوجه گوشتییک‌روزهراس 308(مخلوط دو جنس با نسبت مساوی) در قالب طرح کاملاً تصادفی با چهار تیمار، پنج تکرار و 20 قطعه جوجه در هر تکرار مورد استفاده قرار گرفت. تیمارهای آزمایشی شامل افزودن سطوح صفر (شاهد)، 50، 100 و 150 گرم سین­بیوتیک (بیوپول) به هر هزار لیتر آب آشامیدنی بود. در سن 42 روزگی، افزودن 50 یا 100 گرم سین­بیوتیک به هر هزار لیتر آب آشامیدنی سبب کاهش معنی­دار ضریب تبدیل در مقایسه با سایر گرو­ه­های آزمایشی شد (0/05>P). افزایش شاخص تولید در گروه دریافت­کننده 100 گرم بیوپول در مقایسه با شاهد، تمایل به معنی­داری نشان داد (0/08=P). بیوپول در سطوح 100 و 150 گرم سبب افزایش تعداد کل لاکتوباسیلوس­ها و کاهش شمار مخمر و کپک، کلی‌فرم­ها و کل باکتری­های گرم منفی ایلئوم در مقایسه با شاهد شد (0/05>P). براساس نتایج به‌دست‌آمده، استفاده از سطح 100 گرم سین­بیوتیک بیوپول در 1000 لیتر آب آشامیدنی جوجه­های گوشتی می­تواند ضمن کمک به تعادل جمعیت میکروبی روده کوچک سبب بهبود شاخص تولید شود.

کلیدواژه‌ها

عنوان مقاله [English]

Effects of adding different levels of Iranian native synbiotic to drinking water on performance, carcass characteristics and small intestinal microbial population of broiler chickens

نویسندگان [English]

  • Amir Hossein Alizadeh-Ghamsari 1
  • sayed abdoullah hosseini 2
  • Hamidreza Khoshkerdar 3
  • Mohammadreza Soleymani Damaneh 4

1 Assisstant Professor, Animal Science Research Institute of Iran, Agricultural Research, Education and Extension Organization, Karaj, Iran

2 Animal Sceince Reaserch Institute

3 Scientific and technical director of Zist-Takhmir-Mahan Company, Tehran, Iran

4 Graduated M.S. student, College of Agriculture, Tarbiat Modarres University, Tehran, Iran

چکیده [English]

This study was conducted to evaluate the effects of adding different levels of a domestically produced synbiotic to drinking water on production traits, carcass characteristics and the small intestinal microbial population of broiler chickens. Four hundred one-day-old Ross 308 broilers (a mixture of two sexes with equal proportion) were used in a completely randomized design with 4 treatments, 5 replicates, and of 20 birds per each replicate. Experimental treatments included adding levels: zero (control), 50, 100 and 150 g of synbiotic (Biopoul) per 1000 liters of drinking water. At 42 days of age, the addition of 50 or 100 g of synbiotic per 1000 liters of drinking water significantly decreased feed conversion ratio (P < 0.05). The increase of production index in the group receiving 100 g of Biopoul compared to the control showed a tendency (P = 0.08). Biopoul in the levels of 50, 100 and 150 g increased the total number of lactobacilli and decreased the number of yeasts and molds, coliforms and total gram-negative bacteria in the ileum compared to the control (P<0.05). According to the obtained results, the use of 100 g of synbiotic Biopoul per 1000 liters of drinking water of broiler chickens can improve the production index while helping to balance the small intestinal microbial population. 
 

کلیدواژه‌ها [English]

  • Broiler
  • Carcass characteristics
  • Ileal microbial population
  • Performance
  • Synbiotic
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