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عملکرد،کیفیت لاشه و ریخت‌شناسی روده جوجه‌های گوشتی تغذیه‌شده با گندم خام یا تخمیرشده با ‏ باسیلوس سوبتیلیس و لاکتوباسیلوس پلانتاروم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش‌آموخته‎ ‎کارشناسی‎ ‎ارشد، دانشکده کشاورزی،‎ ‎دانشگاه‎ ‎گیلان،، رشت، ایران

2 استاد، دانشکده کشاورزی،‎ ‎دانشگاه‎ ‎گیلان،، رشت، ایران

3 استادیار، ‎ ‎مؤسسه‎ ‎تحقیقات‎ ‎بین‌المللی‏‎ ‎تاس ماهیان‎ ‎دریای‎ ‎خزر،‎ ‎رشت، ایران

4 دانشیار، دانشکده کشاورزی،‎ ‎دانشگاه‎ ‎گیلان،، رشت، ایران

چکیده

به‌منظور مقایسه گندم معمولی با گندم تخمیرشده با باکتری­های باسیلوس سوبتیلیس و لاکتوباسیلوس پلانتاروم، و تأثیر جایگزینی سطوح مختلف گندم تخمیری با دانه ذرت روی عملکرد، کیفیت لاشه و ریخت‌شناسی ژژنوم در جوجه­های گوشتی این مطالعه انجام شد. تعداد 280 قطعه جوجه گوشتی راس 308 در قالب طرح کاملا تصادفی به 7 گروه آزمایشی با 4 تکرار شامل جیره شاهد بر پایه ذرت و کنجاله سویا و جیره­های حاوی 20 درصد، 30 درصد و 40 درصد ذرت جایگزین شده با دانه گندم خام (W20، W30 و W40) و یا جیره­های حاوی 20 درصد، 30 درصد و 40 درصد جایگزینی ذرت با گندم تخمیرشده (FW20، FW30 و FW40) تقسیم شدند. نتایج به‌دست‌آمده نشان داد که دانه گندم تخمیری در سطح40 درصد موجب افزایش معنی­دار وزن روزانه در دوره­های آغازین و رشد شد (05/0≥P). اسید فایتیک در اثر تخمیر، کاهش و مقدار کلسیم و فسفر از لحاظ عددی افزایش یافت. افزایش معنی­دار طول پرز در تیمار FW40 در مقایسه با تیمار شاهد مشاهده شد (05/0≥P). همچنین وزن نسبی عضله سینه در تیمار  FW40افزایش معنی­داری (05/0≥P) را نسبت به تیمارهای FW30، W40 و شاهدنشان داد.به­عنوان نتیجه­گیری نهایی، استفاده از سطح 40 درصد دانه گندم تخمیری منجر به بهبود ضریب تبدیل و افزایش درصد گوشت عضله سینه می­گردد.

کلیدواژه‌ها


عنوان مقاله [English]

Performance, carcass quality and intestinal morphology of broilers, fed either raw or ‎fermented wheat, with Bacillus subtilis & Lactobacillus plantarum

نویسندگان [English]

  • Forozan Sarreshtehdar 1
  • Majid Mottaghitalab 2
  • Alireza Shenavar 3
  • Hassan Darmani Kouhi 4
1 Former M.Sc. Student, Faculty of Agriculture, University of Guilan, Rasht, Iran‎
2 Professor, Faculty of Agriculture, University of Guilan, Rasht, Iran‎
3 Assistant Professor, International Sturgeon Research Institute, Rasht, Iran‎
4 Associate Professor, Faculty of Agriculture, University of Guilan, Rasht, Iran‎
چکیده [English]

This study was performed to compare ordinary wheat with fermented wheat using Bacillus subtilis & Lactobacillus plantarum, and the effect of replacing different levels of fermented wheat with corn grain on performance, carcass quality and jejunom morphology in broilers. A total of 280 broilers (Ross 308) in a completely randomized design wre assigned to 7 experimental groups with 4 replicates . The experimental diets included: control diet based on corn and soybean meal and six other diets containing 20%, 30% and 40% raw wheat grain instead of corn (W40 & W20, W30) or 20%, 30% and 40% fermented wheat instead of corn (FW30 and FW40, FW20). The results showed that fermented wheat grain at the level of 40% caused a significant increase in daily weight in the starter and growth periods (P<0.05). The fermentation process led to a decrease in phytic acid and an increase in the calcium and phosphorus numerically. Villi length in the FW40 treatment was significantly increased compared to that in the control treatment (P<0.05). Breast muscle in the FW40 treatment showed a significant increase (P<0.05), when compared to treatments FW30, W40, and control. In conclusion, the use of 40% of fermented wheat grains improves the feed conversion ratio and increases the percentage of breast muscle meat.

کلیدواژه‌ها [English]

  • Bacillus subtilis
  • broiler
  • fermented wheat
  • intestinal
  • Lactobacillus plantarum
  • morphology‎
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