水产品是最重要的农产品之一,全世界食品总量的7.5%左右来自海洋、湖泊和河流,发展中国家的人们所摄取的动物性蛋白主要来源于水产品,由于野生水产品资源日渐萎缩,人们将越来越依赖于水产养殖业。中国是世界第一水产品大国,水产养殖业以每年10%左右的速度递增,1998年的水产饲料生产量达到了373万t,但是水产饲料生产受到原有生产工艺条件和设备等诸多因素的限制,生产的水产饲料绝大部分是硬颗粒饲料。以鱼料 Aquatic products are one of the most important agricultural products. Around 7.5% of the world’s total food comes from the oceans, lakes and rivers. Animals derived from people in developing countries mainly come from aquatic products. Due to the shrinking resources of wild aquatic products , People will increasingly rely on aquaculture. China is the largest aquatic product country in the world. Aquaculture industry increases at an annual rate of about 10%. In 1998, the aquatic feed production reached 3.73 million tons. However, aquatic feed production is affected by many factors such as the original production process conditions and equipment Restrictions, the vast majority of aquatic feed production is hard pellet feed. To fish materials