| 摘要 |
PURPOSE:To prepare a feed having excellent flavor and high palatatility to animals, by the anaerobic fermentation of a raw material of feed composed mainly of dehydrated raw bean curd refuse, wherein the pH of the refuse is lower than a specific level and the weight ratio of the soluble nitrogen-free component to the crude protein in the refuse is higher than that of the conventional bean curd refuse. CONSTITUTION:Soybeans or defatted soybeans are extracted with an aqueous solvent preventing the long-term exposure of the beans to a temperature of >80 deg.C, preferably using a multi-stage extraction process to obtain a feed raw material composed mainly of dehydrated bean curd refuse having a pH of <=5 and a weight ratio of the nitrogen-free soluble component to the crude protein of >=1.5 (that of the normal bean curd refuse is about 1.2) (preferably having a dehydrated raw bean curd refuse content of >=80% and a water-content of >=60%), which is subjected to anaerobic fermentation to obtain the objective high-quality feed which please the milk cow, cattle, pig, etc. The addition of a small amount of a saccharine material (e.g. rice bran) or lactobacillus is effective for the vigorous and stable lactic fermentation.
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