علوم دامی ایران

علوم دامی ایران

تأثیرات اسیدهای چرب غیراشباع بر ابتلا به سندروم آسیت در جوجه‌های گوشتی

نوع مقاله : مقاله پژوهشی

نویسندگان
علی اصغر ساکی 1
مجتبی حقیقت 2
اعظم یوسفی 2
میلاد منافی 3
1 دانشیار گروه علوم دامی تغذیۀ طیور، دانشکدۀ کشاورزی دانشگاه بوعلی سینا، همدان
2 دانشجوی سابق دکتری تغذیۀ طیور، دانشکدۀ کشاورزی دانشگاه بوعلی سینا، همدان
3 استادیار، دانشگاه ملایر
10.22059/ijas.2015.56426
چکیده
به منظور بررسی اثر اسیدهای چرب غیراشباع بر ابتلا به آسیت، آزمایشی با استفاده از 136 قطعه جوجه خروس با 2 تیمار و 4 تکرار و 17 جوجه در هر تکرار اجرا شد. تیمارها شامل 1. جیرۀ دارای 4 درصد روغن سویا (نسبت اسیدهای چرب امگا 3 به امگا 6 برابر 112/0) و 2. جیره‌ای با 5/5 درصد روغن طیور (نسبت اسیدهای چرب امگا 3 به امگا 6 برابر 201/0) بود. به منظور القای آسیت از بیست‌و‌یکمین روز دمای سالن به 1±15 درجۀ سانتی‌گراد کاهش یافت. در روز بیست‌ویکم و چهل‌وهشتم پرورش از 2 پرنده در هر تکرار خون‌گیری شد. در 42 و 48 روزگی از هر تکرار دو پرنده کشتار شد و بعد از خارج‌کردن قلب، کبد و سرخرگ ششی، نسبت بطن راست به کل بطن‌ها به دست آمد. نتایج نشان داد که جیرۀ حاوی 5/5 درصد روغن طیور ویسکوزیتۀ خون را به‌طور معناداری کاهش داده است (05/0P<) اما مقدار تیروکسین، دمای مقعد و فعالیت آنزیم گلوتامات دهیدروژناز که نشان‌دهندۀ افزایش سرعت متابولیسم است، در تیمار دارای 5/5 درصد روغن طیور افزایش یافت (05/0P<). از طرفی مالون‌دی‌آلدئید به‌عنوان شاخص استرس اکسیداتیو در تیمار دارای 5/5 درصد روغن طیور افزایش یافت (05/0P<). نتایج نشان داد روغن طیور با نسیت بالای اسید چرب امگا 3 به امگا 6 نتوانسته است تلفات ناشی از آسیت را در مقایسه با روغن سویا کاهش دهد.
کلیدواژه‌ها
آسیت
استرس اکسیداتیو
اسید چرب امگا 3
اسید چرب امگا 6
جوجۀ گوشتی
مالون‌دی‌آلدئید

عنوان مقاله English

The effects of polyunsaturated fatty acids on ascites incidence in broiler chickens

نویسندگان English

Ali Asghar Saki 1
Mojtaba Haghighat 2
Azam Yousefi 2
Milad Manafi 3
1 Associate Professor, Department of Animal Science, Faculty of Agriculture, Bou-Ali Sina University of Hamadan, Hamadan, Iran
2 Former Ph.D. Student, Department of Animal Science, Faculty of Agriculture, Bou-Ali Sina University of Hamadan, Hamadan, Iran
3 Assistant Professor, Univercity of Malayer
چکیده English

In order to evaluate the effect of polyunsaturated fatty acids on ascites incidence using this experiment was conducted 136 male one day (chicken Ross 308) in a completely randomized design with 2 treatments and 4 replication and 17 chickens in each replicate. Treatments includes: diet contain 4 % soybean oil (n3:n6:0.112) and diet include 5.5% poultry oil (n3:n6:0.201). Birds were raised up to 48 days of age and exposed to a cool temperature (15±1°C) from day 21 thereafter. Blood samples (2 mL) were obtained from the wing vein at 21 and 48 days of age. At 21 and 48 days of age, 2 birds in each replication were slaughtered and the hearts, Liver and pulmonary artery were removed and dissected to measure right ventricular hypertrophy. The results have shown diet with 5.5% poultry oil significantly decreased blood viscosity (P<0.05). However concentration of thyroxin, rectal temperature and glutamate dehydrogenase activity were also significantly increased in this treatment (P<0.05). Malondialdehyde as an oxidative stress index significantly increased by diet contain 5.5% poultry oil. Based on results of this research it can be concluded that high ratio of n3:n6 in poultry oil couldn’t decrease ascites mortality as compare with soybean oil.

کلیدواژه‌ها English

acites
broiler
Malondialdehyde
N3 fatty acids
N6 fatty acids
oxidative stress
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  • تاریخ دریافت 10 آبان 1393
  • تاریخ بازنگری 14 بهمن 1394
  • تاریخ پذیرش 26 مرداد 1394