摘要
研究了盐度(12、16、20、24、28、32、36)对哈氏仿对虾(Parapenaeopsis hardwickii)血清离子和肝胰脏消化酶活性影响,结果表明,盐度对哈氏仿对虾血清离子和肝胰脏消化酶有显著影响(P<0.05)。血清K+、Na+、Cl-含量随盐度升高呈上升的趋势,等离子点分别为10.01、159.87、195.10mmol/L,对应盐度分别为36.5、18.3、13.7。胃蛋白酶活性在盐度12时最高,之后随盐度升高其活性逐渐降低;胰蛋白酶与脂肪酶活性均在盐度24时达到最大值;淀粉酶活性在盐度12和28时最大。从酶学角度分析,哈氏仿对虾养殖最适宜的盐度范围为24～28。
Effects of different salinity（12,16,20,24,28,32,and 36） on serum ions and digestive enzyme activities were investigated in this study.Results showed that salinity caused significant influences on serum ions and digestive enzyme activity in Parapenaeopsis hardwickii（P＆lt;0.05）.The concentrations of serum K＋,Na＋,Cl-dramaticlly increased with salinity rising,and the isoionic points were estimated as 10.01,159.87,and 195.10 mmol/L,of which the corresponding salinity is 36.5,18.3,and 13.7,respectively.Highest activity of pepsin occurred at salinity of 12,then it reduced with salinity rising.Highest activities of trypsin and lipase occurred at salinity of 24.The peak of amylase activity occurred at sanilities of 12 and 24.From a zymologic standpoint,optimal salinity range for Parapenaeopsis hardwickii was 24 to 28.
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2013年第2期206-211,共6页
Journal of Shanghai Ocean University
基金
上海市科技兴农重点攻关项目[沪农科攻字(2010)第1-4号]
关键词
哈氏仿对虾
盐度
肝胰脏
消化酶
血清离子
Parapenaeopsis hardwickii
salinity
hepatopancreas
digestive enzyme
serum ions
