白甲鱼幼鱼饲料中营养素适宜含量和最适能量蛋白比研究  

On Suitable Nutrient Content and Optimum Energy-Protein Ratio in Formulated Diet for Juvenile Onychostoma sima

作　　者：周兴华[1] 向枭[1] 李代金[1] 陈建[1] 王文娟[1] 

机构地区：[1]西南大学(荣昌校区)水产系,重庆荣昌402460

出　　处：《西南师范大学学报（自然科学版）》2013年第3期80-86,共7页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：西南大学水产养殖学科自然科学基金应用基础项目(2009-SC0904)

摘　　要：用正交试验法L9(34)配制9种饲料,以增重率、饲料系数和蛋白质效率为评价指标,对白甲鱼幼鱼(3.32±0.47)g配合饲料中蛋白质、脂肪、总能、无机盐需要量及最适能量蛋白比进行了研究.结果表明各营养素对幼鱼的增重率、饲料系数及蛋白质效率的影响从大到小依次为蛋白质、总能、脂肪、无机盐,白甲鱼最适生长所需饲料中蛋白质、脂肪、总能、无机盐含量分别为38.07%,4.98%,12.35kJ/g,3.5%,最适能量蛋白比(E/P)为32.44kJ/g,其中蛋白质为影响幼鱼生长和鱼体成分的主要因素(P<0.05).The L9（34） lable of orthogonal design method has been used to formulate nine diet to determine the requirements of protein,fat,mineral and gross energy for Onychostoma sima（3.32 ±0.47）g.The weight gain rate（WGR）,feed conversion ratio（FCR） and protein efficiency rate（PER） have been used as the biological indexes to assess the feeding effect.The results show that the influence of nutrient on the WGR,FCR and PER as following order： protein,gross energy,fat,and mineral in the range of the factor levels.The optimum percentage of protein,fat,gross energy and mineral are 38.07%,4.98%,12.35 kJ/g,3.5% respectively in the diets of O.sima.The relative energy-protein ratio（E/P= kJ/g） are 32.44 kJ/g.Thus,protein level has a main effect on growth and body composition of O.sima（p0.05）.

关 键 词：蛋白质 脂肪 总能 无机盐 能量蛋白比 白甲鱼 

分 类 号：Q959.468[生物学—动物学]