Effect of sodium tripolyphosphate (STPP) on the embryonic developmental stages of zebrafish Brachydanio (Danio) rerio

摘要

Embryos of zebrafish, Brachydanio rerio were treated with sodium tripolyphosphate. Treatment of the embryos with chorion was carried out from just after fertilization to 96 hours with concentrtations ranging from 5--40 mg/liter of STPP. Concentrations of 20 and 40 mg/liter of STPP showed some embryos with abnormal body structures. These abnorma. Ily structured embryos were found more in 20 and 40 mg/liter of STPP. Treated embryos showed early hatching (54--60 hours), late pigmentation, large yolk,curvature in the body axis and reduced activity. Disturbances in cleavage patterns were observed initial stages.