Résumé
The extraction, the activity and the content of hormons (testosteron, estrogen and progesteron) from some Echinodermata at Viet Nam were reported. The subjet: Echinodermata collected at Thanh Hoa and Nha Trang. The result: The solven system of methylen chloroid and of methanol have higher effect than of ethanol and ether ethylic. The extracts from egg of sea star, sea urchin tested on white rat and rabbit were proved to have activity of testosteron, estrogen and progesteron. Egg of sea star, sea urchin, pyloric ceaca of sea star and meat of Bohadschia argus Jaeger have adequately steroid hormones (testosteron, estrogen and progesteron). In pyloric ceaca of see star, the content of testosteron, estrogen and progesteron are higher than in their egg