饲料蛋白质含量对倒刺鲃鱼种饲养效果的研究  

Using different levels of protein in feed and their effects on raising Spinbarbus denticulatus denticulatus (Oshima) fingerlings

作　　者：黄钧[1] 王士长[1] 程光平[1] 夏中生[1] 梁明振[1] 陈琴[1] 

机构地区：[1]广西大学动物科学技术学院,南宁530005

出　　处：《广西农业科学》2010年第2期170-173,共4页Guangxi Agricultural Sciences

基　　金：广西科技攻关项目(桂科攻0322005-2)

摘　　要：采用蛋白质梯度法,以日本鱼粉、米糠、玉米粉、鱼油为主要原料,制作成不同蛋白质含量的配合饲料,分别饲喂倒刺鲃鱼种54d,以增重率、蛋白质效率、饲料系数、生长比率和经济效益为主要指标进行综合评定。结果表明,倒刺鲃饲料蛋白质含量为33.5%时,饲料效果最佳,其增重率为61.34%、生长比率为0.89%、饲料系数为1.90、蛋白质效率为1.58%、增重1kg鱼的饲料成本为8.20元。对各评定指标进行综合分析,发现在平均水温(18.5±2.0)℃,pH6.8～7.2,溶解氧5.4±0.5mg/L的条件下,倒刺鲃鱼种饲料中蛋白质适宜含量的95%置信范围为31.46%～36.56%。The compound feeds with different protein sources from fish meal, rice bran, corn meal, fish oil, etc., have been used as feed for raising Spinbarbus denticulatus denticuIatus（Oshima） fingerling （10.96cm of initial average body length and 27.80g of average body weight）. The treatments included feeds containing six different protein contents （26.4%, 28.7%, 33.5%, 38.9%, 44.6% and 50.6%） for 54 days, and the rate of weight gained, protein efficiency, feed coefficient, growth rate and economic benefits were determined. Tire feed with 33.5% protein showed the best effect with 61.34% of weight gain rate, 0.89% of growth rate, 1.90 feed coefficient and 1.58% of protein efficiency. The feed cost for gaining lkg weight of fingerling was 8.2 yuan RMB. The comprehensive analysis of these indices revealed that the feed containing 31.46%-36.56% protein in 95% of confidence range were optimum for Spinbarbus denticulatus denticulatus （Oshima） fingerling under experimental conditions with water temperature at （18.5±2.0）℃, pH6.8-7.2, 5.4±0.5mg/L of dissolved oxygen.

关 键 词：倒刺[鱼巴]饲料 蛋白质 适宜含量 

分 类 号：S965.199[农业科学—水产养殖]