利用畜禽加工副产品替代点带石斑鱼饲料中的鱼粉  

Replacement of fish meal with rendered animal protein ingredients in diets for malabar grouper

作　　者：付闰吉[1] 纪文秀[1] 王岩[1] 谢宁峡[1] 

机构地区：[1]浙江大学动物科学学院,浙江杭州310058

出　　处：《浙江大学学报（农业与生命科学版）》2011年第6期663-669,共7页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家自然科学基金资助项目(30771673);浙江省科技厅资助项目(2008C22055)

摘　　要：比较网箱养殖点带石斑鱼对宠物级鸡肉粉(简称P-PBM)和一种畜禽蛋白混合物(由饲料级鸡肉粉、羽毛粉和血粉按质量比65∶20∶15的比例混合而成,简称MM)的利用能力.设5组等蛋白(49%粗蛋白)、等能(19 MJ·kg-1总能)饲料:对照饲料中添加50.0%鱼粉,在其余4组饲料中分别加入15.0%、30.0%的P-PBM或13.9%、27.8%的MM替代对照饲料中鱼粉的30%、60%,每个饲料处理设3个网箱重复,每个网箱中放养30尾鱼[初始体质量(33.4±0.1)g],饲养实验持续10周.结果表明:通过添加P-PBM或MM将点带石斑鱼饲料中鱼粉含量降低到20.0%对鱼摄食、增质量、饲料系数、氮储积效率(NRE)、磷储积效率(PRE)和鱼体组成无明显的不良影响;利用P-PBM部分替代鱼粉后鱼生长速度趋于加快,NRE和PRE趋于升高.本实验结果证实P-PBM是点带石斑鱼的优质饲料蛋白源,将其与鱼粉搭配使用可提高网箱养殖点带石斑鱼的生长性能和食物利用效率.The potential of malabar grouper（Epinephelus malabaricus） in utilizing pet-grade poultry by-product meal（P-PBM） and a blend（MM） which was comprised of 65% feed-grade poultry by-product meal,20% feather meal and 15% blood meal was examined in a 10-week net pen experiment.Five isonitrogenous（49% crude protein） and isocaloric（19 MJ·kg-1 gross energy） diets were established.One diet was formulated to contain 50.0% herring meal as control,and in the other four diets,30% and 60% of the fish meal were replaced respectively by either incorporating P-PBM at 15.0% and 30.0%,or incorporating MM at 13.9% and 27.8%.Each diet treatment had three replicates.Initial body mass of the experimental fish was（33.4±0.1） g.The results indicated that reducing dietary fish meal level from 50.0% to 20.0%,with P-PBM or MM as alternative protein source,had no significantly negative effect on feed intake,body mass gain,feed conversion ratio,nitrogen retention efficiency（NRE）,phosphorus retention efficiency（PRE） and whole body composition.Partial replacement of fish meal with P-PBM resulted in enhancement in body mass gain,NRE and PRE.The results above reveal that P-PBM is an excellent dietary fish meal substitute for malabar grouper,and using fish meal and P-PBM in combination as dietary protein source can enhance growth performance and feed utilization efficiency of malabar grouper reared in net pens.

关 键 词：点带石斑鱼 宠物级鸡肉粉 鱼粉 生长 食物利用 

分 类 号：S963.7[农业科学—水产养殖]