Tail-end dehulling of canola meal: chemical composition and nutritive value of dehulled meal for broiler chickens and weaned pigs

Abstract

Experiments were conducted to determine the optimal conditions for tail-end dehulling of canola meal (CM) and the production of high-protein, high-energy and low-fiber CM. The use of sieves from 250-600µm resulted in the production of dehulled fractions 1 and 2 from three different types of CM. On average, and in comparison with their parent meals, the dehulled fractions 1 and 2 contained less dietary fiber (19.4 and 22.9 vs. 27.5%) and more protein (44.5 and 43.1 vs. 40.1%), respectively. Growth performance experiments were conducted with broiler chickens and weaned piglets fed diets containing dehulled CM fractions. In the broiler chicken trial, no significant differences for feed intake, BWG and feed efficiency were observed, indicating that CM and its low-fiber fractions could replace SBM in the broiler pre-starter diets at a lower cost. In the swine experiment, a beneficial effect of dehulling on final body weight and feed efficiency was observed.