铈对日本沼虾卵子孵化的影响

Effect of cerium on egg hatching of Macrobrachium nipponense

研究了铈 (Ce3 +)对日本沼虾 (Macrobrachiumnipponenese)卵子孵化的影响 .结果表明 ,当Ce3 +的浓度为 0 2mg·L-1时 ,孵化率与对照组无显著差异 ;Ce3 +的浓度范围为 1 2～ 2 .4mg·L-1,可提高孵化率 13 7%～ 19 1% .

The effect of cerium on egg hatching of Macrobrachium nipponense was studied.Compared with the control group,when the concentration of Ce 3+ was 0.2 mg·L -1 ,the hatching percentage was not influenced ( P >0 05),while the optimum concentrations of Ce 3+ were between 1.2～2.4 mg·L -1 ,the hatching rate increased by 13.7%～ 19 1% The egg hatching percentage increased by absorbing cerium from water.