Impact of Environmental Thermal Stimulation on Activation of Hypothalamic Neuronal Nitric Oxide Synthase during the Prenatal Ontogenesis in Muscovy Ducks

Table 1

Number of embryos investigated in each age group (E20 to E33) under control conditions (37.5°C), acute cold stimulation (34°C for 3 hours before experiment), and acute warm stimulation (39°C for 3 hours before experiment).

Applied temperature	Age of the embryos (E) in days
	E20	E23	E28	E33
37°C	6	6	6	6
39°C	6	6	6	6
34°C	12	8	6	6