1دانشجوی دکتری، گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران.
2دانشیار، گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران.
3دانشیار، گروه علوم دامی، دانشکده کشاورزی و محیط زیست، دانشگاه اراک، اراک، ایران.
4استادیار، گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران.
5دانش‌آموخته دکتری، گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران.
چکیده
این پژوهش به‌منظور بررسی اثرات مکمل امولسیفایر و اینولین در جیره غذایی با منابع مختلف چربی بر عملکرد رشد، صفات لاشه، پاسخ ایمنی و شاخصهای بیوشیمی خون جوجه‌های گوشتی به‌مدت 42 روز انجام شد. تعداد 800 قطعه جوجه گوشتی نر یکروزه در یک آزمایش فاکتوریل 2×2×2 با دو منبع چربی (روغن سویا و پیه گوساله)، دو سطح امولسیفایر (صفر و 0/1 درصد لیزوفسفولیپید) و دو سطح مکمل اینولین (صفر و 0/1 درصد) در قالب طرح کاملاً تصادفی با هشت تیمار، پنج تکرار و20 جوجه در هر تکرار استفاده شدند. پرندههای تغذیه‌شد با جیره حاوی پیه گوساله و امولسیفایر، ضریب تبدیل و درصد چربی شکمی کم‌تری از پرندگانی که جیره حاوی روغن سویا و امولسیفایر دریافت کردند داشتند (p<0/05). درصد چربی شکمی و ضریب تبدیل در پرندگانی که جیره حاوی چربی و اینولین دریافت کردند کم‌تر از سایر پرندگان بود (p<0/05). پرندههای تغذیه‌شد با جیره حاوی امولسیفایر مقادیر بالاتر عیار پادتن اولیه و ثانویه علیه ویروس نیوکاسل، و عیار ثانویه پادتن تام و IgM علیه گلبول قرمز خون گوسفندی (SRBC) از پرندگانی که جیره فاقد امولسیفایر دریافت کردند داشتند (p<0/05). میانگین افزایش وزن روزانه و عیار پادتن علیه ویروس نیوکاسل و SRBC در پرندگانی که جیره حاوی اینولین دریافت کردند بالاتر از سایر پرندگان بود. براساس نتایج حاصل، استفاده از 0/1 درصد از مکمل امولسیفایر و اینولین به‌صورت جداگانه یا ترکیبی در جیره غذایی جوجه‌های گوشتی میتواند برای بهبود عملکرد رشد و پاسخ ایمنی مفید باشد.
Effects of emulsifier and inulin supplementation on growth performance, carcass characteristics, immune response and blood biochemistry in broilers fed different fat sources
1Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
2Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
3Department of Animal Science, Faculty of Agriculture and Natural Resources, Arak University, 38156-8-8349 Arak, Iran.
4Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
5ِDepartment of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
چکیده [English]
A 42-d study was conducted to investigate the effects of emulsifier and inulin supplementation in diets with different sources of fat on growth performance, carcass traits, immune response, and blood biochemical indices of broilers. A total of 800 one-day-old male broilers in a 2 × 2 × 2 factorial experiment with two fat sources (soybean oil and beef tallow), two emulsifier levels (0 and 0.1% lysophospholipids) and two levels of inulin supplementation (0 and 0.1%) were used in a completely randomized design with eight treatments, five replications and 20 chicks per replicate. Birds fed diets containing beef tallow and emulsifier had a lower feed conversion ratio and abdominal fat percentage than birds fed diets containing soybean oil and emulsifier (P <0.05). The abdominal fat percentage and feed conversion ratio were lower in birds that received fat and inulin diets than other birds (P<0.05). Birds fed the emulsifier-containing diet had higher values of primary and secondary antibody titers against Newcastle disease virus, and secondary titers of total antibody and IgM against sheep red blood cells (SRBC) compared to those fed the emulsifier-unsupplemented diet (P<0.05). Daily weight gain and antibody titer against Newcastle disease and SRBC were higher in birds receiving the inulin-supplemented diet compared to other birds (P<0.05). In conclusion, the use of 0.1 % emulsifier and inulin, either singly or in combination, in the diet of broiler chickens can be useful for improving growth performance and immune response.
کلیدواژه‌ها [English]
Broilers, Emulsifier, Inulin, Soybean oil, Tallow
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