李金兰,陈刚,张健东,汤保贵,周晖,王忠良,黄建盛,施刚,初庆柱,李向明

• 1:广东海洋大学水产学院
• 2:广东省水产经济动物病原生物学及流行病学重点实验室
• 3:广东省普通高校南海水产经济动物增养殖重点实验室
• 4:海南省海洋与渔业科学院

摘要(Abstract)：

运用间歇流水式呼吸仪研究卵形鲳鲹(Trachinotus ovatus L.)在不同温度、盐度下呼吸代谢的变化。结果表明:在19~33℃内,随温度升高,卵形鲳鲹的耗氧率(RO)、排氨率(RN)、代谢率(REO)、排泄率(REN)均不断增大,差异有统计学意义(P<0.05),氨商(QA)与蛋白质供能比(PEP)则下降,差异有统计学意义(P<0.05),并在28~33℃组达到稳定;温度系数(Q10值)在水温由28℃升至33℃时最小,为1.59;肝糖原(LG)及乳酸(LD)均呈下降趋势,且各组LG差异均具统计学意义(P<0.05)。在盐度15~30时,随盐度增大,卵形鲳鲹RO、RN、REO、REN、QA与PEP均呈U型抛物线变化,并在盐度20~25时有最小值;LG与LD变化均不明显。在19~33℃内,卵形鲳鲹代谢水平与水温呈正相关,主要由氧化蛋白质供能,28~33℃的温度条件更利于卵形鲳鲹生长。在盐度15~30内,卵形鲳鲹代谢水平与盐度呈U型抛物线变化,主要由氧化蛋白质供能,盐度20~25利于机体储备蛋白质,即利于生长。

关键词(KeyWords)： 卵形鲳鲹;温度;盐度;耗氧率;排氨率;能源物质

Abstract:

Keywords:

基金项目(Foundation): 广东省海洋与渔业科技项目(A2009-08D03、A2010-08D04);; 广东省科技计划项目(2009B020308005、2010B080203044、2011B020307012);; 海洋公益性行业科研专项:南海深水区高值鱼类大型网箱健康养殖关键技术集成与示范(201205028);; 广东省海洋经济创新发展区域示范专项经费(GD2012-A01-007);; 海南省产学研一体化专项资金项目(CXY20130032);; 广西科技厅科技计划(桂科攻1222013-2)

作者(Author): 李金兰,陈刚,张健东,汤保贵,周晖,王忠良,黄建盛,施刚,初庆柱,李向明

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