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机构地区:[1]中国科学院东北地理与农业生态研究所,吉林长春130012 [2]吉林省大安市农业综合开发办公室,吉林大安131300
出 处:《农业系统科学与综合研究》2011年第1期78-85,共8页System Sciemces and Comprehensive Studies In Agriculture
基 金:吉林省科技发展计划项目(20020227-02;20080402-1);吉林省农业综合开发项目(220882131)
摘 要:采用盐碱水生长试验,研究凡纳滨对虾(Litopenaeus vannamei)生长与水环境K+、Ca2+、Mg2+、Na+/K+和M/D(离子系数)的关系,探讨盐碱化苇塘养殖对虾技术。结果表明,在碱度、盐度和pH分别为10.32 mmol.L-1~38.50 mmol.L-1,0.102%~0.334%及8.5~9.5的盐碱水中,幼虾27 d的体质量特定生长率(SGRW)无显著性差异(P>0.05),平均为(3.16±0.41)%.d-1。SGRW与阳离子组成因子的简单相关性都存在其他因子不显著(P>0.05)的影响效应。SGRW分别与K+质量浓度的偏相关性不显著(P>0.05),与Ca2+、Mg2+质量浓度的偏相关性显著(P<0.05),与Na+/K+、M/D(离子系数)的偏相关性极显著(P<0.01)。SGRW分别与M/D及Mg2+质量浓度的偏回归关系显著(P<0.05),与Na+/K+极显著(P<0.01),与K+、Ca2+不显著(P>0.05)。盐碱水环境中Mg2+、Na+/K+及M/D(离子系数)共同影响对虾的生长;添加CaCl有利于苇塘养虾。The study of relationship between the growth rate of juvenile shrimps in body weight and the mass concentration of K^+,Ca^2+,Mg^2+,Na^+/K^+ ratio and ion coefficient(M/D ratio)was coaducted through,culture test of Litopenaeus vannamei with saline-alkali water.The results showed that the specific growth rate in(SGRW) of juvenile shrimps were not significant difference from each other(P0.05) in different water tested with alkalinity of 10.32~38.50 mmol/L,salinity of 0.102~0.334% and pH of 8.5-9.5 and afeer the average body weight was 3.16±0.41 %/d.The ratios of simple relationship between SGRW and 5 kinds of environment factor were all affected by effects of the other factors or their suites,and they were not all significant different(P0.05).The eccentric relativity between SGRW and K^+ was not significant different(P0.05),Ca2+ and Mg2+ were significant different(P0.05),and Na^+/K^+ and M/D ratio were extremely significant different(P0.01).The eccentric regression between SGRW and Mg2+ and M/D ratio were significant different(P0.05),Na^+/K^+ ratio was extremely significant different(P0.01),K+ and Ca^2+ were not significant different(P0.05).Mg^2+,Na^+/K^+ and M/D ratio affect the growth in saline-alkali water,M/D ratio may be leading factor,and to reduce M/D ratio with adding CaCl2 will be advantageous to prawn-cultivating in salinization reed pond.
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