Investigating the Effect of Several Processing Methods of Canola Seed in the Ration on Quality Indicators and Chemical Compounds of Canola Seed, Growth Performance and Carcass Traits of Ross 308 Broiler Chickens

Abstract

Introduction: Canola as a protein source in poultry feed has anti-nutritional compounds whose effects can be reduced during processing. The purpose of this research is to investigate the irradiation, roasting, and enzyme processing methods of canola seeds on the quality indicators and chemical compounds of canola seeds, growth and carcass performance traits of broiler chickens.
Materials & Methods: To conduct the experiment, 450-day-old broiler chickens of Ross 308 strain were placed in 30 pens. The experimental treatments included the control treatment (without canola seeds), the treatment containing raw canola seeds, and 3
treatments processed by enzymes, gamma rays, and roasting methods. The number of repeats in all treatments was 6. GLM procedure was used for data analysis and Duncan's test by SAS software was used to compare the mean of treatments.
Result: The effect of processing methods on protein solubility in KOH, peroxide number and urease activity was significant (P<0.01). Also, the effect of processing methods on feed consumption in different rearing periods, body weight gains in the starter and the grower, feed conversion ratio in all rearing periods, and the percentage of the carcass, liver, and abdominal fat were significant (P<0.05).
Conclusion: In general, the methods of processing gamma radiation and roasting improved the studied traits of broiler chickens. The processing of canola seed increased the absorption of its nutrients by reducing anti-nutrient compounds. Feed processing can change nutrient requirements by influencing activities related to feed consumption. Birds will use less energy to feed, so they will have more energy available for growth.