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

Authors

علی اصغر ساکی

دانشیار گروه علوم دامی تغذیۀ طیور، دانشکدۀ کشاورزی دانشگاه بوعلی سینا، همدان مجتبی حقیقت

دانشجوی سابق دکتری تغذیۀ طیور، دانشکدۀ کشاورزی دانشگاه بوعلی سینا، همدان اعظم یوسفی

دانشجوی سابق دکتری تغذیۀ طیور، دانشکدۀ کشاورزی دانشگاه بوعلی سینا، همدان میلاد منافی

استادیار، دانشگاه ملایر

abstract

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

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