【摘要】 用不同大小的配合饲料进行鱼苗鱼种培育,并根据鱼的张嘴大小来改变饲料的粒子规格。通过测定鱼种的全长、体重和张嘴大小求得鱼体全长(X)与体重(W)之间的关系式为W=0.4758X3.36,鱼体全长(X)与张嘴大小(Y)之间的关系式为Y=0.036+0.696X。从而初步提出异育银鲫鱼种培育阶段适口配合饲料颗粒的规格。更多还原

【Abstract】 Formulated feed of various sizes was used to nurse fry and fingerling.Proper feed size for fish was determined according to the open mouth size of fish.The gross length, body weight and open mouth size were measured weekly.According to the data of these,the relationship between gross length (X) and body weight (W) could be described as W=0.4758X3.36, and the relationship between gross length (X) and open mouth size (Y) could be described as Y=0.036+0.696X.Based on this work,the recommended references of proper feed sizes for crucian carp were preliminarily put forward.更多还原