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استفاده از خیساب مایع ذرت در تغذیۀ مرطوب جوجه های گوشتی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانش آموختۀ کارشناسی، گروه پرورش و تولید طیور دانشگاه تربیت مدرس

2 استادیار، گروه پرورش و تولید طیور دانشگاه تربیت مدرس

3 استاد، گروه پرورش و تولید طیور دانشگاه تربیت مدرس

چکیده

سطوح خیساب مایع ذرت در تغذیۀ مرطوب جوجۀ ‌گوشتی بر عملکرد و وزن نسبی اندام‌های داخلی با استفاده از 300 قطعه جوجۀ ‌گوشتی در قالب طرح کاملاً تصادفی با 6 تیمار، 5 تکرار و 10 قطعه پرنده در هر تکرار بررسی شد. جیره‌های آزمایشی شامل: 1. شاهد-خشک: جیرۀ پایۀ بدون آب و خیساب مایع ذرت، 2. شاهد-مرطوب: جیرۀ پایه با آب و بدون خیساب، 3. جیرۀ مرطوب حاوی 10 درصد خیساب ذرت، 4. جیرۀ مرطوب حاوی 20 درصد خیساب ذرت، 5. جیرۀ مرطوب حاوی 30 درصد خیساب ذرت و 6. جیرۀ مرطوب حاوی 40 درصد خیساب ذرت بودند. در کل دوره افزایش وزن بدن، مصرف خوراک و ضریب تبدیل غذایی با استفاده از خیساب مایع ذرت به‌صورت خطی و درجۀ دو تغییر کرد (01/0>P) و در سطوح بیش از 10 درصد خیساب مایع ذرت عملکرد کاهش یافت (05/0>P). با افزایش سطح خیساب مایع ذرت در جیره‌های مرطوب، وزن نسبی جگر، بورس فابریسیوس و سنگدان به‌طور معناداری کاهش یافت (01/0>P). بر اساس نتایج، استفاده از خیساب مایع ذرت در جیره‌های مرطوب تا سطح 10 درصد جیرۀ غذایی جوجه‌های گوشتی توصیه می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

Use of corn steep liquor in wet-feeding of broiler chickens

نویسندگان [English]

  • Mansoor Yazdanyar 1
  • Mohammad Amir Karimi Torshizi 2
  • Farid Shariatmadari 3
1 Former M.Sc. Student, Poultry Science Department, Tarbiat Modares University, Tehran, Iran
2 Assistant Professor, Poultry Science Department, Tarbiat Modares University, Tehran, Iran
3 Professor, Poultry Science Department, Tarbiat Modares University, Tehran, Iran
چکیده [English]

The effects of wet-feeding of five levels of corn steep liquor (CSL) on broilers performance and relative internal organ weights were examined. Three hundreds 1-d old broilers (Ross 308) were randomly allocated to one of the six dietary treatments in a completely randomized design with 5 replications of 10 chicks per pen. The dietary treatments were: 1. Dry-fed control, no add water nor CSL in feed, 2. Wet-fed control, add water in feed, 3. Wet-fed, 10% CSL in feed, 4. Wet-fed, 20% CSL in feed, 5. Wet-fed, 30% CSL in feed, and 6. Wet-fed, 40% CSL in feed. The body weight gain, feed intake and feed conversion ratio were significantly affected by dietary levels of CSL inclusion, in 1-42 d growing period (P< 0.05). The response to increasing dietary levels of CSL was in linear and quadratic manners (P< 0.05). Using of CSL levels higher than 10 % declined the growth performance. Increase in dietary CSL levels beyond 10 % caused a significant decrease in relative weights of liver, bursa Fabricius, and gizzard (P<0.05). The results of present study suggest 10 % CSL as an optimum level of CSL dietary supplementation in wet feeding of broilers.

کلیدواژه‌ها [English]

  • Corn steep liquor
  • broiler
  • growth performance
  • wet feeding
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