Становление центральных NO-ергических структур в эмбриогенезе птиц

Abstract

The aim of this work was to study the formation of NO-ergic systems of the frontal hypothalamus of duck embryos as the representative of homoeothermic birds in the period of embryo development and the influence of temperature and blockade of NO-dependent mechanisms on this process. The experiments showed that the subthalamic area of 23-day-old duck embryos contains NADFH-d/CNO – positive neurons. It was also found out that 20-day-old embryos incubated at a low temperature had CNO activity. The results of the experiments have proved that one- day-old ducks injected by NO-synthesis on the 28th day of embryonic development had less ferment activity. This fact should be taken into account for the further investigation of the influence of NO-dependent mechanisms in embryonic ontogenesis on thermoregulation under the influence of warmth, cold with the aim of embryonic development correlation.