基于卤水的养殖用水中Ca^(2+)/Mg^(2+)对凡纳滨对虾生长及体内SOD和AKP的影响

Effects of Ca^(2+)/Mg^(2+) in Brine Water from Saltworks on Growth and Activities of AKP and SOD in White Legged Shrimp

淡水稀释取自盐场的卤水,调节Ca2+、Mg2+的质量浓度和比例,设置系列梯度,进行凡纳滨对虾的养殖试验,测定生长比速及超氧化物歧化酶(SOD)和碱性磷酸酶(AKP)的酶活性。试验表明,过高或过低的Ca2+质量浓度都会影响凡纳滨对虾的存活和生长,在Ca2+质量浓度为320 mg/L,Ca2+/Mg2+为1∶2.5时,其存活与生长最佳;同时SOD和AKP酶活性也最高。酶活性可以指示凡纳滨对虾的生长状况。

The effects of Ca^2＋/Mg^2＋ in brine water from salt works on survival, growth and activities of enzymes （AKP and SOD）of white legged shrimp （Litopenaeus vannamei） were conducted using Ca^2＋/Mg^2＋ of aseries of concentration and ratios. The results showed that the highest growth rate and activities of enzymes in the shrimps occurred at Ca^2＋ concentration of 320 mg/L with, Ca^2＋/Mg^2＋ ratio of 1：2.5, indicating that the activities of AKP and SOD can indicate the healthy status of the shrimp.