Evaluation of different levels of flaxseed on performance and some blood parameters in broilers

This current study was performed to evaluation of the effects of flaxseed on performance and some blood parameters in broilers. One hundred ninety-two one day-old Ross 308 broilers in 16 experimental units (12 birds in each experimental unit) were used with 4 treatments and 4 replications. Treatments include Treatment 1: Diet based on corn and soybean meal. 2) Diet with 2.5% flaxseed. 3) Diet with 5% flaxseed. 4) Diet with 7.5% flaxseed. Functional traits were measured periodically. Blood samples were taken at 21 and 42 days of age to measure some blood parameters. The results showed that the use of 7.5% flaxseed in the diet caused a significantly (P<0.05) decrease in daily weight gain (DWG). Inclusion of 5% flaxseed in diet significantly reduced glutathione peroxidase, superoxide dismutase and catalase enzymes activities (P <0.05). Based on the results of this study, dietary inclusion of 5% flaxseed in broilers diets is recommended.