Nutritive Value of Soybean Meals Processed in Different Conditions:Methionine Supplementation and Digestibility of the Meals Kazue Aso

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The addition of methionine to a corn-underheated soybean meal type of diet for chicks did not overcome the growth depressing property of the underheated meals and a hypertrophy of the pancreas compared with chicks receiving heated meals. This result suggested that the action of the enzyme inhibitor was not necessarily associated with poor utilization of methionine in the underheated meals. Using cocks with surgically prepared artificial anus, the digestibility of the meals was determined. The digestibilities of the heated meals, particularly protein, were better than that of underheated ones. These results suggested that contrary to some early reports the effect of inhibitors was a general effect on the liberation of all amino acids and not particularly on methionine. Microscopic observations obtained on the pancreases of chicks fed raw soybean meal and heated soybean meal diet were shown. Pancreas of chicks fed raw soybean meal showed the depletion of zymogen granules.
公益社団法人日本畜産学会の論文