投喂圆背角无齿蚌对中华绒螯蟹生长及肌肉、肝脏中氨基酸的影响  

Growth and free amino acids in muscle and liver of Chinese mitten-hand crab Eriocheir sinensis fed clam Anodonta woodiana pacifica

作　　者：华丹[1] 闻海波[1] 徐钢春[1] 王树英 

机构地区：[1]中国水产科学研究院淡水渔业研究中心,江苏无锡214081 [2]江南大学分析测试中心,江苏无锡214036

出　　处：《大连水产学院学报》2006年第1期83-86,共4页Journal of Dalian Fisheries University

基　　金：江苏省科技攻关项目资助(BE2003359)

摘　　要：将中华绒螯蟹Eriocheir sinensis(简称河蟹)随机分成两组,分别放养于4 m×4 m×2 m的网箱中,每箱放养量为0.75只/m3。每组设3个重复。A组体重为(59.26±13.84)g,投喂鲜活的圆背角无齿蚌(去壳重)(60%)+配合饲料(40%);B组体重为(65.08±13.84)g,全部投喂配合饲料。每天的投喂量均为河蟹体重的10%左右。经养殖45 d后,测量河蟹体重,并用高效液相色谱仪(HPLC)对两组河蟹肌肉和肝脏中氨基酸的含量进行分析。结果表明,两组河蟹增重率分别93%、82%,A组显著高于B组(P<0.05);两组河蟹肌肉、肝脏中氨基酸的组成基本相同,均检出21种氨基酸及其衍生物,但A组河蟹肌肉、肝脏中的氨基酸总量、必需氨基酸、呈味氨基酸、鲜味氨基酸含量均明显高于B组。投喂新鲜的圆背角无齿蚌对河蟹生长具有一定的促进作用,且能明显提高河蟹可食部分的氨基酸及风味物质的含量。Chinese mitten - hand crab （ Eriocheir sinensis） averaging about 60 g/individual were stocked into a 4 m × 4 m × 2 m net cage at a rate of 0.75 crab/m^3 and fed mixed feed （60% fresh flesh of clam Anodonta woodiana pacifica ＋40% commercial feed）（ group A） and commercial feed （group B, control group） for 45 days. Analysis of free amino acids （FAA） by HPLC showed that there were 21 amino acids and their derivafives in muscle and liver from the crab. The growth rate was 93% in group A and 82% in group B. There were the same composition of total FAA, essential FAA, and flavor amino acids in the muscle and liver in two groups, but the content was significantly higher in group A than that in group B. Thus, the crab had higher contents of total FAA, and flavor substance and faster growth when fed the clam flesh than when fed the commercial feed.

关 键 词：圆背角无齿蚌 中华绒螯蟹蟹 氨基酸 鲜味氨基酸 

分 类 号：S963.21[农业科学—水产养殖]