Effect of Vegetable Oil Types on Energy Expenditure, Abdominal Fat Deposition and Fatty Acid Profile of Breast and Thigh Muscles in Broilers

Document Type: Original Paper


1 Department of Animal and Poultry Nutrition, Faculty of Animal Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

2 Department of Plant Breeding and Biotechnology, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran


This experiment was conducted to determine the effect of different vegetable oil types on broiler energy expenditure, abdominal fat deposition and fatty acid profile of breast and thigh. A total number of 300 un-sexed day-old cobb 500 broiler chickens were used in a completely randomized design, consisted of five treatments (five different vegetable oil sources including soy, flaxseed, canola, corn, and sunflower oil), with five replicates and 10 chicks in each. Different vegetable oil sources had no significant effect on energy efficiency ratio and abdominal fat deposition. Flaxseed oil increased C18:3 and C20:5 in breast and C18:3, C20:3, C20:4 and C20:5 in thigh muscle (P< 0.05). The highest content of n-3 fatty acids was observed in breast of broilers fed diets treated with flaxseed oil (P< 0.05). The C18:3 content of thigh of broilers fed flaxseed was significantly higher than those chicken received other oil sources (P< 0.05). A significant increase in C20:5 was seen in the thigh of chicken received flaxseed oil, too (P< 0.05). The highest content of C18:2 was observed in the breast of the chickens fed corn oil and the lowest was seen in broilers received canola oil (P< 0.05). The results showed that dietary oil type could affect fatty acid profile of broiler breast and thigh despite lack of significant difference in broiler energy expenditure or abdominal fat deposition.


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