During the early developmental stages, LDH, IDH, IDDH, SOD and EST isozymes have different patterns of ontogenetic changes? MDH, ADH, ATDH and G3PDH isozymes are present but exhibit no evident developmental change.

• 早期发育阶段LDH、IDH、IDDH、SOD和EST具有不同的发育变化谱式,而MDH、ADH、GTDH和G3PDH酶谱在整个早期发育阶段均无明显变化。