饲料脂肪水平对乌苏里拟鲿生长性能和体成分的影响  

Effects of dietary lipid level on growth performance and body composition of Pseudogagras ussuriensis

作　　者：杨雨虹[1] 于世亮[1] 王裕玉[1] 马国军[2] 陈松波[1] 车建芳[1] 石野[1] 

机构地区：[1]东北农业大学动物科学技术学院,黑龙江哈尔滨150030 [2]中国水产科学研究院黑龙江水产研究所,黑龙江哈尔滨150070

出　　处：《中国饲料》2015年第3期17-19,23,共4页China Feed

基　　金：黑龙江省教育厅科学技术研究项目(12531039)

摘　　要：为研究饲料脂肪水平对乌苏里拟鲿生长性能和体成分的影响,以鱼粉和酪蛋白作为蛋白源,鱼油和豆油(1∶1)作为脂肪源,配制3个不同脂肪水平(5%、10%和15%)的试验饲料,对平均体重为(3.40±0.01)g的乌苏里拟鲿进行为期8周的养殖试验。结果表明,饲料中脂肪含量为5%时,试验鱼的增重率最大(276%),蛋白质效率最高(1.80%),饲料系数最低(1.22),全鱼粗蛋白质含量最高(13.68%),且均显著优于15%试验组(P<0.05)。因此,本试验条件下乌苏里拟鲿饲料中适宜的脂肪含量为5%。An 8-week feeding trial was conducted to study the optimal lipid content of feed for Pseudobagras us- suriensis.Fish meal and casein were chosen as the protein source, the fish oil and the bean oil as fat source.Pseudobagras ussuriensis were randomly divided into 3 groups,and three lipid levels（5%, 10%, 15%）were formulated.The results showed that when the fat content was 5%,the weight growth rates of Pseudobagras ussuriensis were the highest（276%）,the protein efficiency was the highest （1.80%）, the feed conversion efficiency was the lowest （1.22）, and protein content of the whole fish was the highest（13.68%） which were all significantly improved, compared with 15% group（P 〈 0.05）.In this trial the optimal lipid content in feed was 5% for Pseudobagras ussuriensis.

关 键 词：乌苏里拟鲿 脂肪水平 生长性能 体成分 

分 类 号：S816.7[农业科学—饲料科学]