中国卤虫卵孵化温度特性的研究

Study on the hatching temperature traits of Chinese Artemia eggs

依据有效积温法则,对中国12个主要地理品系卤虫卵的孵化速度、发育起点温度及其发育同步性作了分析。结果表明,各品系的孵化速度因温度不同而差异极显著;相同温度下各品系间孵化速度也有显著差异;在沿海品系中,其发育起点温度由北往南基本呈递增趋势。以各品系孵化发育历期的变差系数作为发育同步性的衡量指标,依据发育同步性程度及发育起点温度、有效积温进行聚类分析,提出了适合我国卤虫卵加工及使用的最佳品系组合。

According to the rule of the effective accumulative temperature, the hatching speed, developing threshold temperature and developing synchrotron of Artemia eggs from 12 major geographical strains in China have been studied. The results show that the hatching speed of each strain is notable different at different temperatures and even at the same temperatures. Their differences are also remarkable among the strains, and the developing threshold temperatures show increasing trend from north to south among coastal strains. According to the cluster analysis of the developing synchrotron degree (coefficient of variation of the developing periods as its measure index), developing threshold temperature and effective accumulative temperature, the optimum strain combination of Chinese Artemia eggs was determined for production process and use.