饲料磷脂水平对巴丁鱼生长的影响  

Effect of Dietary Phospholipid Level on Growth of Catfish(Pangasius sutchi)

作　　者：麻艳群[1,2] 黄凯[2] 肖新[2] 陈涛[2] 于丹[2] 卢克焕[1,2] 

机构地区：[1]广西大学广西亚热带生物资源保护利用重点实验室,广西南宁530004 [2]广西大学动物科技学院,广西南宁530004

出　　处：《水产科学》2011年第7期383-386,共4页Fisheries Science

基　　金：广西大学科研基金资助项目(XGL090011);广西自然科学基金资助项目(桂科自0728022)

摘　　要：选取900尾健康的巴丁鱼(约1.4 g/尾),随机分成5个处理组(磷脂水平分别为0%、1%、2%、3%、4%),每组设3个重复,投喂同一种饲料,每个重复60尾鱼放养于一个水泥池(1.52 m×1 m×1 m)中。试验期56 d,试验水温为25～27℃。试验结果显示,各组的质量增加率、特定生长率随饲料磷脂水平的升高而升高(P>0.05),当磷脂水平为4%时,以上2个指标均达最高,分别为(1484.95±36.50)%、(4.92±0.26)%。第5组饲料系数最低(1.00±0.05)(P>0.05)。饲料磷脂水平显著影响巴丁鱼的肥满度、肝脏脂肪含量和肌肉脂肪含量(P<0.05)。第5组的肥满度最高(1.24±0.21),显著高于其他4组(P<0.05);第1组的肝脏脂肪含量最高(3.71±0.47%),与第3、4、5组差异显著(P<0.05)。第4、5组的肌肉脂肪含量最低,显著低于前3组(P<0.05)。A 56 day feeding trial was conducted to evaluate the effects of dietary phospholipid on growth of catfish（Pangasius sutchi）.Total 900 healthy catfish with body weight of 1.4 g were randomly divided into five groups,and fed the diet containing 0% of phospholipids（Group 1）,and 1%（Group 2）,2%（Group 3）,3%（Group 4）,and 4%（Group 5） at water temperature of 25～27 ℃.It was found that dietary phospholipid significantly improved weight growth rate（WGR） and special weight growth rate（SGR）（P0.05）.The fish fed the diet containing 4% of phospholipid had the maximal WGR[（1484.95±36.50）%] and SGR [（4.92±0.26）%].There was the minimal feed conversion ratio in Group 5（1.00±0.05）（P0.05）.The condition factor,and lipid content in the liver and muscle were affected by dietary phospholipid level significantly（P0.05）.The maximal condition factor（1.24±0.21） was observed in Group 5（P 0.05）.There was the maximal lipid content（3.71±0.47）% was found in the liver of the fish fed the diet containing 0% of phospholipids（P0.05）,and the fish in Group 4,and Group 5 had the significantly lower lipid content in the muscles than the others did（P0.05）,indicating that dietary phospholipid can improve the growth of the catfish at certain level.

关 键 词：巴丁鱼 磷脂 生长 

分 类 号：S965.199[农业科学—水产养殖]