鱼粉是水产饲料中最重要的蛋白源。因加工方式的不同,鱼粉常被分为直火鱼粉和蒸汽鱼粉两种。优良的鱼粉呈淡黄色或黄褐色,干燥、不结块、质地膨松,在显微镜下能够看到少量鱼刺和鱼骨,具有鱼粉正常的鱼腥气味,无异臭味及焦灼味;劣质或掺假鱼粉则手感湿 Fish meal is the most important protein source in aquafeed. Due to the different processing methods, fish meal is often divided into two kinds of direct fire fish meal and steam fish meal. Excellent fish meal was light yellow or brown, dry, non-caking, texture leavening, can see a small amount of fishbone and fishbone under the microscope, with the normal smell of fish fishy, ​​no different smell and coke burning; inferior or Adulterated fishmeal is wet