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鳗鱼自从进了人类的驯养圈以后,它的“食谱”便逐渐发生了变化,不得不放弃其野生习性——钻食动物腐尸。日本有100多年的养鳗历史,直到60年代还是以投喂冷冻竹刀鱼、远东多线鱼、沙丁鱼、太平洋鲱鱼等为主。把冷冻鲜鱼用铁丝串成串,整个地吊在鳗池中。后来发展到把鱼肉绞碎,添加抗菌素和油脂、水分,再加以充分搅拌。由于这样配制的饲料在短期内会失去粘性必须及时投喂,再加上鲜鱼的保存和供给都很困难,对生产十分不利。到60年代便发生了划时代的变化,即以北洋鱼粉为
Since its entry into the domestic circle of human beings, the eel has undergone a gradual change in its “recipe” and has had to abandon its wild habit of carnivorous animals. Japan has more than 100 years of eel history, until the 60s or fed frozen saury, Far Eastern multi-line fish, sardines, Pacific herring mainly. The frozen fresh fish with string of wire, hanging in the eel pool. Later developed to the fish minced, add antibiotics and grease, water, and then fully stirred. Since such formulated feedstuffs lose their tackiness in a short period of time and must be fed in time, together with the preservation and supply of fresh fish, they are very difficult and very unfavorable to the production. By the 60s epoch-making changes took place, that is, with the North Sea fish meal