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Roasted Full-Fat Soybeans in Starter, Grower, and Finisher Diets for Female Broiler Turkeys

J. L. MacIsaac^*, K. L. Burgoyne, D. M. Anderson and B. R. Rathgeber

^* Atlantic Poultry Research Institute, PO Box 550, Truro, Nova Scotia, B2N 5E3; and
Department of Plant and Animal Sciences, Nova Scotia Agricultural College, PO Box 550, Truro, Nova Scotia, B2N 5E3

Correspondence: D. M. Anderson, E-mail: DAnderson{at}nsac.ns.ca

A study was conducted to examine the growth performance and carcass composition of broiler turkeys fed graded levels of roasted soybeans processed by flame roasting. Roasted soybeans were incorporated as a partial replacement of soybean meal in starter (0 or 15% of the diet) and as a partial or complete replacement for soybean meal in grower and finisher diets (0:100, 33.3:66.6, 66.6:33.3, 100:0; roasted full-fat soybeans:soybean meal). At 21 d of age, the birds fed the starter diet with roasted soybeans ate more feed and were heavier than the controls, but feed conversion was similar. Feed consumption and feed conversion were not affected by ratio of roasted soybeans to soybean meal. However, birds fed the diet containing the 66.6:33.3 ratio were heavier than birds fed any other diet. At 84 d of age, carcass CP content of the birds fed roasted soybeans in the starter diet were similar to the control birds, whereas the carcass fat content was lower.

Key Words: soybean • roasted • soybean meal • turkey • carcass composition