Observation on the shapes and anatomy of eggs of different days shows that the embryonic development of Orthosia incerta Hufnagel can be divided into three periods, they are blastodisc period,blastobelt period and blastoforming period.
通过对不同时间卵的外形及解剖观察 ,得出梦尼夜蛾 Orthosia incerta Hufnagel的胚胎发育可分为胚盘阶段、胚带阶段以及成形阶段 (成形初期和成形末期 ) ,随胚胎发育程度的不同 ,卵壳颜色也发生相应的规律性变化 ,可作为判断胚胎发育阶段及预测预报的依据。
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