Incubation of chicken eggs pdf
12% spread is typical for chicken eggs). true fertility. Percentage of hatching eggs that are fertile. This can be determined only by incubation, candling, and breakout of the clears to determine which eggs were fertile or by breaking out potentially fertile eggs to examine the germinal disc (e.g., a. When hatching, the humidity is increased to 65% relative humidity or more. An excellent method to determine correct humidity is to candle the eggs at various stages of incubation. The normal size of the air cell after 7, 14, and 18 days of incubation for a chicken egg is shown. This practice cooks many eggs. The eggs will take time to warm to incubator temperature and many times in small incubators the incubator temperature will drop below 98°F for the first hours or until the egg warms to 99°°F. In Case of Power Outage. If you experience a .