摘要
[Objective] On the basis of previous researches, this experiment aimed to analyze the effect of K＊ and the interaction of K＋ , salinity （ s）, Ca2＋ , Mg2＋ on growth and adenosine triphosphatase （ATPase）, which was closely related to growth, of Litopenaeus vannamei. [Method] 5 -week Litopenaeus vannamei breeding experiment was performed according to L16（215） orthogonal experiment design. Then the effect of K＋ and the interaction of K＋ , salinity, Ca2＋ , Mg2＋ in water on survival, growth and ATP enzyme activity of Litopenaeus vannamei. [Result] K＋ had signifi- cant effect on survival rate, length and weight gain, ATP enzyme activity in Litopenaeus vannarnei. The highest survival rate was at K＂ of 150 rng/L. The fastest growth rate was at 50 mg/L, as well as the activities of Na＊ - K＋ -ATPase, Mg2＋ -ATPase, Ca＋ -ATPase. The interaction of salini- ty, Ca2＋ , Mg2＋ , K ＋ in water also had significant effect on survival rate, length and weight gain, ATP enzyme activity in Litopenaeus vannamei. [Conclusion] Among the horizontal combinations of factors in the experiment, the optimal combination for Litopenaeus vannamei survival rate was salinity of 15, K＋ of 150 mg/L, Ca2＋ of 100 mg/L, Mg2＋ of 300 mg/L, the optimal combination for growth rate was salinity of 15, K＋ of 50 mg/L, Ca2＋ 100 mg/L, Mg2＋ 100 mg/L, the optimal combination for Na＋ -K＊ -ATPase, Mg2＋ -ATPase, Ca2＋ -ATPase activity in Litopenaeus van- namei was salinity of 5, K＋ of 50 mg/L, Ca2＋ of 100 mg/L, Mg2＋ of 100 mg/L.
[Objective] On the basis of previous researches, this experiment aimed to analyze the effect of K＊ and the interaction of K＋ , salinity （ s）, Ca2＋ , Mg2＋ on growth and adenosine triphosphatase （ATPase）, which was closely related to growth, of Litopenaeus vannamei. [Method] 5 -week Litopenaeus vannamei breeding experiment was performed according to L16（215） orthogonal experiment design. Then the effect of K＋ and the interaction of K＋ , salinity, Ca2＋ , Mg2＋ in water on survival, growth and ATP enzyme activity of Litopenaeus vannamei. [Result] K＋ had signifi- cant effect on survival rate, length and weight gain, ATP enzyme activity in Litopenaeus vannarnei. The highest survival rate was at K＂ of 150 rng/L. The fastest growth rate was at 50 mg/L, as well as the activities of Na＊ - K＋ -ATPase, Mg2＋ -ATPase, Ca＋ -ATPase. The interaction of salini- ty, Ca2＋ , Mg2＋ , K ＋ in water also had significant effect on survival rate, length and weight gain, ATP enzyme activity in Litopenaeus vannamei. [Conclusion] Among the horizontal combinations of factors in the experiment, the optimal combination for Litopenaeus vannamei survival rate was salinity of 15, K＋ of 150 mg/L, Ca2＋ of 100 mg/L, Mg2＋ of 300 mg/L, the optimal combination for growth rate was salinity of 15, K＋ of 50 mg/L, Ca2＋ 100 mg/L, Mg2＋ 100 mg/L, the optimal combination for Na＋ -K＊ -ATPase, Mg2＋ -ATPase, Ca2＋ -ATPase activity in Litopenaeus van- namei was salinity of 5, K＋ of 50 mg/L, Ca2＋ of 100 mg/L, Mg2＋ of 100 mg/L.
基金
Key Projects of Science and Technology Promoting Farm in Shanghai City (Shanghai Agricultural Key Project [2010] No.1-6 )
Science and Technology Promoting Projects of Science and Technology Promoting Farm in Shanghai City(Shanghai Agricultural Promoting Project [2008]No.5 -1 )
Leading Academic Discipline Project of Shanghai Education Commission(J50701)
