Effect of various soybean meal sources and Avizyme on chick growth performance and ileal digestible energy.
Twelve commercial soybean meal samples, obtained from U.S.
and foreign processors, were evaluated in four two-week broiler chick
studies. The average and range for composition values of the various
soybean meals showed variation between samples; crude protein, 45% (40-49);
dry matter, 88% (87-89); lysine, 2.9% (2.57-3.27); methionine, 0.69%
(0.60-0.75), cystine, 0.64%, (0.60-0.76); and KOH protein solubility,77%,
(71-83). The growth performance and ideal digestible energy for the
chicks were affected by the soybean meal source. The researchers found
that the addition of an enzyme (Avizyme) was effective in improving
the ideal digestibility of energy in soybean meals with lower digestible
energy. Bottom line, is that the nutritionist needs to know the nutritional
value of the meal being used in feed formulations. This is especially
important for the nutritionist using meals that are produced in some
of the foreign countries.
Douglas, Michele W., Carl M. Parsons and Michael R.
Bedford. 2000. Effect of various soybean meal sources and Avizyme on
chick growth performance and ileal digestible energy. J. Appl. Poultry