饵料中添加自然产物对豹纹鳃棘鲈生长和体色的影响  

Effects of natural additives on growth and bodycolor of leopard coral grouper(Plectropomus leopardus)

作　　者：关献涛[1,2] 吴洪喜[2,3] 马建忠 单乐州[2] 林少珍[2] GUAN Xian-tao;WU Hong-xi;MA Jian-zhong;SHAN Le-zhou;LIN Shao-zhen(Collage Fisheries and Life Science,Shanghai Ocean University,Shanghai 201306,China;Zhejiang Mariculture Research Institute,Wenzhou 325005,China;Zhejiang Fisheries Technical Extension Station,Hangzhou 310023,China)

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]浙江省海洋水产养殖研究所,浙江温州325005 [3]浙江省水产技术推广总站,浙江杭州310023

出　　处：《海洋学研究》2018年第2期80-91,共12页Journal of Marine Sciences

基　　金：浙江省科技计划项目资助(2015F50009);浙江省近岸水域生物资源开发与保护重点实验室人才培养项目资助(2012F20020);温州市海水增养殖产业科技创新团队建设项目资助(C20120004);中央立项现代农业生产发展资金鱼类产业提升项目资助(浙海渔计[2013]48号)

摘　　要：为探究自然成分添加剂对东星斑Plectropomus Leopardus的影响,选择了虾青素、叶黄素、螺旋藻和玉米蛋白粉4种自然产物,以不同量分别添加到石斑鱼配合饵料中制成实验饵料,在循环水养殖系统中喂养东星斑75d,测定了实验前后东星斑的生长率、特定生长率、饵料系数3个主要生长指标和鱼体代表部位的体色指标。结果显示,4种添加物对东星斑的增重率、特定生长率和饵料系数均无显著影响(P<0.05,下同);4种添加物均使东星斑的体色亮度L*值略变小,且部分体色L*值影响显著;4种添加物均能使东星斑的a*值和b*值升高,且与空白对照组比差异显著,尤其是虾青素,对东星斑体色整体变红、变黄效果最为显著。In order to investigate the effects of natural additive on Plectropomus Leopardus,4 kinds of different contents of natural products（astaxanthin,xanthophyll,spirulina and corn gluten meal）were selected to formulate the baits to feed the leopard coral grouper（Plectropomus leopardus）in a recirculating aquaculture system for seventy-five days.The main growth index and the L＊value（Lightness）,a＊value（red—green）and b＊value（yellow—blue）of body color in these fish＇s eight parts（head cheek,opercula,dorsal,abdomen,dorsal fin,pectoral fin,tail fin and caudal peduncle）were measured by scale,straightedge and colorimeter before and after the experiment.The results show that compared with control group,these four additives have no significant impact on the weight gain rate,specific growth rate,feed coefficient of leopard coral grouper（P〈0.05）;all of these additives make the L＊value slightly smaller,and there are significance occurrings on some parts.Compared with the control group,all of the additives significantly lift the a＊value and b＊value of leopard coral grouper,among which the experimental feed with astaxanthin has the most significant effect.

关 键 词：东星斑 虾青素 叶黄素 螺旋藻 玉米蛋白粉 体色 

分 类 号：S96[农业科学—水产养殖]