نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی فارغ التحصیل دکتری تخصصی، گروه علوم دام و طیور، پردیس ابوریحان دانشگاه تهران، تهران-ایران

2 دانشیار، گروه علوم دام و طیور، پردیس ابوریحان،دانشگاه تهران، پاکدشت، ایران.

3 دانشیار، گروه علوم دام و طیور، ردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران.

4 استادیار،دانشکده علوم صنایع غذایی. دانشکده کشاورزی تربیت مدرس

چکیده

تاثیر اسانس آویشن باغی و روغن کلزا بر عملکرد، صفات ایمنی و ریخت شناسی روده با استفاده از 432 قطعه جوجه گوشتی نر یک روزه سویه راس 308 به صورت آزمایش فاکتوریل 3×3 در قالب طرح کاملا تصادفی شامل سطوح مختلف اسانس آویشن باغی (صفر، 300 و500 ppm) و روغن کلزا (یک، سه و پنج درصد) با نه تیمار و چهار تکرار بررسی شد. در کل دوره پرورش، جوجه‌های دریافت کننده سه درصد نسبت به یک درصد روغن کلزا و جوجه‌های دریافت کننده 300 ppm نسبت به بدون اسانس آویشن باغی افزایش وزن بیشتری داشتند(p<0/05). استفاده از سه درصد روغن کلزا + 300 ppm اسانس آویشن باغی باعث افزایش درصد ران نسبت به یک درصد روغن کلزا شد. در سطوح یک و پنج درصد روغن کلزا با افزایش سطح اسانس آویشن باغی به جیره، غلظت های کلسترول و LDL خون کاهش و HDL خون افزایش پیدا کرد (p<0/01). سطوح سه و پنج درصد روغن کلزا + 300 و 500 ppm اسانس آویشن باغی در جیره جوجه‌های گوشتی باعث افزایش درصد لنفوسیت و تیتر آنتی‌بادی علیه بیماری نیوکاسل و کاهش درصد هتروفیل و نسبت هتروفیل به لنفوسیت خون شدند (p<0/05). جوجه‌های دریافت کننده جیره حاوی اسانس آویشن باغی بیشترین نسبت ارتفاع پرز به عمق کریپت را داشتند (p<0/01). بر اساس نتایج حاصل، می‌توان از سطح سه درصد روغن کلزا + 300 ppm اسانس آویشن باغی در جیره جوجه‌های گوشتی جهت بهبود عملکرد، توان ایمنی و صفات بیوشیمیایی خون استفاده کرد.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of different levels of rapeseed oil and garden thyme essential oil on performance, immune traits and intestinal morphology of broiler chickens

نویسندگان [English]

  • Mohammad Ali Abbasi 1
  • shokoufe ghazanfari 2
  • seyed davood sharifi 3
  • Hassan Ahmadi Gavlighi 4

1 Department of Animal and Poultry Science, College of Aburaihan, University of Tehran, Pakdasht, Tehran-Iran

2 Department of Animal and Poultry Sciences, College of Aburaihan, University of Tehran, Pakdasht, Tehran-Iran

3 Department of Animal and Poultry Science, College of Aburaihan, University of Tehran, Pakdasht, Tehran-Iran

4 Department of Food Science and Technology, Faculty of Agriculture, Tarbiat Modares University

چکیده [English]

The effect of garden thyme essential oil (TEO) and rapeseed oil (RO) on performance, immune traits and intestinal morphology using 432 one-dayold
Ross 308 male broiler as a (3x3) factorial experiment in a completely randomized design including different levels of TEO (0, 300 and 500 ppm)
and RO (1, 3 and 5 percentage) were evaluated with 9 treatments and 4 replicates. Throughout the rearing period, broiler chickens receiving 3%
gained more weight than 1% of RO and chickens receiving 300 ppm gained more weight than those without TEO (P˂0.05). The use of 3% RO + 300
ppm TEO increased the thigh percentage compared to 1% RO. At 1 and 5 percentage levels of RO, with increasing levels of TEO in the diet, blood
cholesterol and LDL concentrations decreased and blood HDL increased (P<0.01). Levels of 3% and 5% of RO + 300 and 500 ppm of TEO in broiler
chicken diets increased lymphocyte percentage and antibody titer against Newcastle disease and decreased heterophil percentage and heterophil to
lymphocyte ratio of blood (P<0.05). Broiler chickens receiving diet containing TEO had the highest ratio of villi height to crypt depth (P<0.01). Based
on the results, the level of 3% rapeseed oil + 300 ppm thyme essential oil in the diet of broiler chickens can be used to improve performance,
immunity and biochemical traits of blood.

کلیدواژه‌ها [English]

  • Antioxidant
  • Broiler Chickens
  • Immune system
  • Intestinal morphology
  • vegetable oil
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