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一、酵母饲料酵母含蛋白质46～85％,营养丰富。国外应用酵母来取代大部分或全部鱼粉喂鱼,效果显著,其作用已得到肯定。用豆粉饲料添加酵母,可大幅度降低鱼粉的用量。酵母中,赖氨酸占其所含蛋白质的4～7.8％。二、白地霉饲料白地霉也可作为蛋白饲料。精制的白地霉干粉含水分18.6％,干物质81.4％。干物质中粗蛋白占50.7％,粗脂肪为3.6％,粗纤维为4.7％,无氮浸出物占27.1％,灰份为13.9％,营养丰富。三、细菌饲料细菌饲料的蛋白质含量较
First, the yeast feed yeast protein 46 to 85%, nutrient-rich. Foreign application of yeast to replace most or all of the fish meal feeding, the effect is significant, its role has been affirmed. With the addition of yeast powder soybean meal, can significantly reduce the amount of fish meal. In yeast, lysine accounts for 4 to 7.8% of the protein it contains. Second, Geotrichum candidum Geotrichum can also be used as protein feed. The refined white mold powder contains 18.6% moisture and 81.4% dry matter. Crude protein in dry matter accounted for 50.7%, crude fat 3.6%, crude fiber 4.7%, nitrogen-free extract accounted for 27.1%, ash 13.9%, nutrient-rich. Third, the bacteria feed bacterial feed protein content