MINERAL PROFILE OF CANOLA AND SOYBEAN MEAL

Two experiments were conducted to compare the mineral profiles of canola and soybean meal. In a factorial arrangement, three supplemental levels of calcium (0.2, 0.4 and 0.6%) and three supplemental levels of available phosphorus (0.05, 0.1, and 0.15%) were fed with and without supplementation of 30 ppm of zinc. There was no response in weight gain, feed intake or percent bone ash, thus suggesting that zinc availability is unlikely to be a problem influencing the performance of poultry fed either of the protein supplements. Supplementation of both canola and soybean meal with either chloride, manganese, magnesium, iron or copper failed to demonstrate any meaningful responses which could be considered of interest in practical type diets in which the two protein supplements may substitute for one another. It is thus considered that none of the minerals investigated should be any more of a problem in practical type broiler diets in which canola meal is substituted for a portion of the soybean protein. Key words: Broiler chicken, canola meal, mineral profiles, mineral profile of soya and canola meals