[Study of phospholipids during embryogenesis of Misgurnus fossilis]

The contents of total lipids and phospholipids were determined in the unfertilized loach eggs and embryos at different stages of development. It is established that after fertilization during the first 48 h of development it remains practically at the same level and the percentage of phospholipids in it for the first 2h after fertilization increases significantly, being relatively constant at the next stages of development. A thin-layer chromatography of phospholipids showed that the ratio of different fractions changed qualitavely and these changes are especially well developed at the stage of organogenesis.