Wide mediastinum is caused by aortic rupture or mediastinal hematoma, but poor radiographic technique can lead to a mistaken diagnosis. The plain chest film and the aortogram are essential for the proper diagnosis of widened mediastinum in trauma.
1 Temperature: Chicken eggs should be incubated at a temperature between 99 and 102 degrees Fahrenheit (99.5 is often considered to be ideal). 2  Avoid temperatures outside the 97â103 Â°F (36â39 Â°C). 3  range. 4  If the temperature remains beyond either extreme for several days, hatchability may be severely reduced.
Correct temperature and humidity levels. The correct temperature in this incubator for chicken eggs - whether large breed or bantam - is 37.5ÂºC (between 99Âº and 99.5ÂºF). The correct humidity level for this incubator between days 1 and 18 is 45%. At day 18 it is raised to 65% in preparation for hatching.