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Co-products from the grain milling and oilseed industries are sometimes included in diets for pigs, but limited data exist on the digestibility of protein in these ingredients when fed to younger pigs. Research at the University of Illinois is giving producers more information about the feeding value of grain and oilseed co-products fed to young growing pigs.
A team led by Hans H. Stein, professor in the Department of Animal Sciences at U of I, determined the standardized ileal digestibility (SID) of crude protein and amino acids in brewers rice, full-fat rice bran (FFRB), defatted rice bran (DFRB), peanut meal, sesame meal, rapeseed meal, rapeseed expellers, soybean expellers, cassava meal, and bakery meal fed to pigs starting at 14 kilograms.
Results - Journal - Animal - Science - SID
The results, published in the Journal of Animal Science, indicated that the SID of crude protein and amino acids was greatest in brewers rice (with 93.7 percent crude protein digestibility) and sesame meal (88.5 percent) and lowest in cassava meal (30.2 percent).
The SID of crude protein and most amino acids was equivalent for rapeseed meal, rapeseed expellers, and soybean expellers; SID of crude protein ranged from 78 to 82 percent in the three ingredients. The SID of arginine, isoleucine, leucine, lysine, and methionine was greater in full-fat rice bran compared with defatted rice bran, but the SID of crude protein and other amino acids did not differ between the two rice co-products.
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