Влияние температурного фактора и блокады NO-зависимых механизмов на становление NO-ергических структур переднего гипоталамуса в пренатальном онтогенезе уток

Abstract

The aim of this work was the study of the formation of NO-ergic systems of the frontal hypothalamus of duck embryos as the representative of homoiotermic birds in the period of the embryo development and 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 low temperature had CNO activity. The results of the experiments made appear that one-day-old ducks injected by NO-synthesis on the 28-th day of embryonic development had less ferment activity. This fact should be taken into account for further investigation of influence of NO-dependent mechanisms in embryonic ontogenesis on thermoregulation under the influence of warmth, cold with the aim of correlation of embryonic development.