Effect of Crud and Processed Canola Seed in the Finisher Diet on the Growth Performance and Meat Quality of Broiler Chickens

This study investigated the effect of different levels of crude and processed canola seeds in the finisher's diet on broiler chickens' growth performance and meat quality traits. A total of 1056 Ross-308 broiler chickens, comprising both sexes, were used in a completely randomized design with 16 treatments. Each treatment had 6 replicates, and each replicate consisted of 11 birds. Treatment 1 involved a basal diet adjusted with corn-soybean meal, while treatments 2-16 involved the replacement of three types of canola seeds (crude, micronized, and super-conditioned) at five levels (3%, 6%, 9%, 12%, and 15%). The growth performance of broiler chickens was not affected by the crude and processed canola seeds added to the finisher diet in the experimental treatments (p>0.05). Additionally, at the end of the experimental period (42 days), the effect of the experimental treatments on measuring the quality indices of breast and thigh meat was examined. The results showed that the drip loss of breast and thigh meat was influenced significantly by the processing of canola seed (p<0.01). Furthermore, the main effects of super-conditioned and crude canola seed processing in the diet had a significant impact on the decrease in breast and thigh meat quality, with super-conditioning having the most significant effect and crude having the least effect, and there were no significant interactions between them on other quality measurement indices (p<0.01). Based on the results obtained from this experiment, canola seed processing using the super-conditioning method was more effective in drip loss compared to the micronized method.