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

Document Type : Research Paper

Authors

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

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<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.

Keywords

References

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Iranian Journal of animal Science
Volume 46, Issue 3 - Serial Number 3
October 2015
Pages 325-334

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History

  • Receive Date: 01 November 2014
  • Revise Date: 03 February 2016
  • Accept Date: 17 August 2015

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