人们在加工或食用水产品时,往往将其下脚料等加工副产物抛弃。其实,水产品废弃物经过加工、综合利用,可以变废为宝,又可以避免污染环境,也是一条致富的好途径。水产品废弃物在水产品中所占的比重相当大,以白鲢为例,在加工过程中产生40%左右的下脚料,其中鱼头占30%、内脏占8%、 When people process or consume aquatic products, they often abandon their processing by-products such as scraps. In fact, aquatic products waste through processing, comprehensive utilization, you can turn waste into treasure, but also to avoid environmental pollution, but also a good way to get rich. The proportion of aquatic products waste in aquatic products is quite large. Taking silver carp, for example, it produces about 40% of scraps during processing, of which the fish head accounts for 30%, the viscera accounts for 8%