摘要
采用3×3因子试验法设计了3种不同蛋白质水平(36%、37 5%、39%)及能量蛋白比水平(37、38、39kJ/g蛋白)的9种试验饲料,以体重为(11 65±0 85)g的黄颡鱼PseudobagrusfulvidracoR 为养殖对象,在水温为(24 0±0 5)℃的室内恒温循环水养殖系统中进行为期68d的生长试验。结果表明,饲料中蛋白质含量与能量蛋白比对黄颡鱼的生长和消化率的影响显著,其中以8号饲料(蛋白质39 13%,能量蛋白比38 23kJ/g蛋白)的养殖效果和饲料干物质的消化率为最好。对饲料中蛋白质含量、能量蛋白比与增重率、饲料系数、特定生长率、蛋白质效率、饲料干物质的表观消化率、脂肪的表观消化率指标进行回归分析,结果表明,黄颡鱼人工配合饲料中适宜的蛋白质含量为37 58%～39 02%,适宜的能量蛋白比(C/P)为38 29～39 23kJ/g蛋白。
The juvenile yellow catfish Pelteobagrus fulvidraco Richardson with initial mean body weight of (11.65±0.85)g were fed nine diets containing 36%, 37.5%,or 39% crude protein at energy-protein ratio levels of 37, 38,or 39 kJ/g protein in a circulating system at (24.0±0.5)℃ for 68 days. The results showed that the fish fed the diets containing 39.13% crude protein and 38.23 kJ/g protein had good growth performance and the maximum apparent digestibility. Regression analysis of data on protein content, energy-protein ratio weight gain, feed conversion ratio, specific growth rate (SGR), protein efficiency rate, digestibility of dry matter, digestibility of protein, and digestibility of lipid suggested that the optimum protein contents, and energy-protein ratio should be 37.58%-39.02% and 38.29-39.23 kJ/g protein for juvenile yellow catfish, respectively.
出处
《大连水产学院学报》
CSCD
北大核心
2004年第4期252-257,共6页
Journal of Dalian Fisheries University
基金
苏州市农业科技发展基金项目资助(SNZ-0117)
江苏省三项工程项目资助(PJ2002-33)
关键词
黄颡鱼
配合饲料
蛋白质含量
能量蛋白比
yellow catfish Pelteobagrus fulvidraco Richardson
formulated diet
protein content
energy-protein ratio
