中国工程科学
中國工程科學
중국공정과학
ENGINEERING SCIENCE
2015年
1期
19-26
,共8页
半滑舌鳎%循环水养殖%放养密度%生长%营养成分
半滑舌鰨%循環水養殖%放養密度%生長%營養成分
반활설탑%순배수양식%방양밀도%생장%영양성분
Cynoglossus semilaevis Günther%recirculating aquaculture%stocking density%growth%nutrient composition
为半滑舌鳎（Cynoglossus semilaevis Günther）的集约化养成提供基础数据，在工厂化循环水养殖模式下，以处于快速生长期的大规格鱼种（0.64±0.063）kg为研究对象，设置4个密度梯度组，检测半滑舌鳎的生长及肉质相关指标，结果表明：a.实验共进行7个月，半滑舌鳎在循环水养殖模式下的总成活率为88.01%～93.34%，总增重率为139.69%～191.09%，且随着养殖密度降低，其成活率呈下降趋势，生长速度、肥满度呈上升趋势，半滑舌鳎生长激素分泌浓度为2.522～2.8624μg/L，各养殖密度组的生长激素随养殖密度下降前期呈升高趋势，后期呈下降趋势；b.各养殖密度组水分、灰分、粗蛋白、粗脂肪、氨基酸和脂肪酸含量随养殖密度变化均没有规律性变化；c.本实验条件下，循环水养殖模式X2组即初始放养210条的处理组取得了最佳的养殖效果，月平均成活率为98.72%，月增重为0.1526 kg/条，经7个月的养殖，可达到23.03 kg/m3的单位产量。本实验说明半滑舌鳎在循环水养殖模式下具有很好的适应性，其生长及营养成分均处于较好的状态，同时也说明循环水养殖模式可以极大地发掘半滑舌鳎的养殖潜力，是适合半滑舌鳎集约化养殖的一种具有优势的养殖模式。
為半滑舌鰨（Cynoglossus semilaevis Günther）的集約化養成提供基礎數據，在工廠化循環水養殖模式下，以處于快速生長期的大規格魚種（0.64±0.063）kg為研究對象，設置4箇密度梯度組，檢測半滑舌鰨的生長及肉質相關指標，結果錶明：a.實驗共進行7箇月，半滑舌鰨在循環水養殖模式下的總成活率為88.01%～93.34%，總增重率為139.69%～191.09%，且隨著養殖密度降低，其成活率呈下降趨勢，生長速度、肥滿度呈上升趨勢，半滑舌鰨生長激素分泌濃度為2.522～2.8624μg/L，各養殖密度組的生長激素隨養殖密度下降前期呈升高趨勢，後期呈下降趨勢；b.各養殖密度組水分、灰分、粗蛋白、粗脂肪、氨基痠和脂肪痠含量隨養殖密度變化均沒有規律性變化；c.本實驗條件下，循環水養殖模式X2組即初始放養210條的處理組取得瞭最佳的養殖效果，月平均成活率為98.72%，月增重為0.1526 kg/條，經7箇月的養殖，可達到23.03 kg/m3的單位產量。本實驗說明半滑舌鰨在循環水養殖模式下具有很好的適應性，其生長及營養成分均處于較好的狀態，同時也說明循環水養殖模式可以極大地髮掘半滑舌鰨的養殖潛力，是適閤半滑舌鰨集約化養殖的一種具有優勢的養殖模式。
위반활설탑（Cynoglossus semilaevis Günther）적집약화양성제공기출수거，재공엄화순배수양식모식하，이처우쾌속생장기적대규격어충（0.64±0.063）kg위연구대상，설치4개밀도제도조，검측반활설탑적생장급육질상관지표，결과표명：a.실험공진행7개월，반활설탑재순배수양식모식하적총성활솔위88.01%～93.34%，총증중솔위139.69%～191.09%，차수착양식밀도강저，기성활솔정하강추세，생장속도、비만도정상승추세，반활설탑생장격소분비농도위2.522～2.8624μg/L，각양식밀도조적생장격소수양식밀도하강전기정승고추세，후기정하강추세；b.각양식밀도조수분、회분、조단백、조지방、안기산화지방산함량수양식밀도변화균몰유규률성변화；c.본실험조건하，순배수양식모식X2조즉초시방양210조적처리조취득료최가적양식효과，월평균성활솔위98.72%，월증중위0.1526 kg/조，경7개월적양식，가체도23.03 kg/m3적단위산량。본실험설명반활설탑재순배수양식모식하구유흔호적괄응성，기생장급영양성분균처우교호적상태，동시야설명순배수양식모식가이겁대지발굴반활설탑적양식잠력，시괄합반활설탑집약화양식적일충구유우세적양식모식。
In order to collect more basic data of intensive aquaculture of Cynoglossus semi-laevis Günther,4 groups of different stocking densities were set up in industrial recirculating aquaculture system,the adult fish in rapid growth period (0.64 ± 0.063) kg were observed,the parameters of growth and quality in muscles were detected. The results were shown as follows. a. The experiment continued for 7 months,the survival rate of Cynoglossus semilaevis Günther in recirculating aquaculture mode was in 88.01%~93.34%,weight gain rate was 139.69%~191.09%. With the decrease of stocking density,survival rate was on a declining curve,while growth rate and fatness were on a rising trend. The concentration of growth hormone was 2.522~2.862 4μg/L,which was on a rising trend in earlier stage and then on a declining curve in later stage with the decrease of stocking density. b. There is no regular change of moisture, ash content,crude protein,crude fat,amino acid and fatty acid with the change of stocking density. c. In this experimental condition,the group whose intial stocking density is 210 got the best culture effect;the average survival rate per month was 98.72 %;the average gaining in weight per month was 0.152 6 kg/pcs;after 7 months breeding,the specific yield reached 23.03 kg/m3. This study showed that Cynoglossus semilaevis Günther has a good adaptability in industrial recirculating aquaculture,and the growth and quality in muscles were all in a better condition. It also showed that industrial recirculating aquaculture can greatly develop the culture potential of Cynoglossus semilaevis Günther,which was a preponderant culture mode for inten-sive aquaculture of Cynoglossus semilaevis Günther.
