目前,草鱼的主粮为配合饲料,而配合饲料的各种主原料如棉粕、豆粕、鱼粉、米糠等都为熟干品,这些原料在熟态下所含的酶类几乎都被破坏,草鱼摄食此种饵料增加了其消化吸收的难度,造成营养不良,生长缓慢,在此情况下只增加营养成分于饲料中,也发挥不出应有的作用。另外,饲料中添加的酶类在饲料加工过 At present, grass carp staple food is compound feed, and feed all kinds of main raw materials such as cottonseed meal, soybean meal, fish meal, rice bran are all cooked dry goods, these raw materials contained in the state of almost all enzymes destroyed, grass carp Ingestion of such bait increases the difficulty of digestion and absorption, resulting in malnutrition and slow growth. In this case, only adding nutrients to the feed also does not play its due role. In addition, feed added to the processing of feed enzymes