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.
1 Upon receving your eggs, let your eggs set at 50 to 60 degrees room temperature (do not refrigerate). Eggs should set for 6 to 12 hours prior to putting into your incubator.  Temperature should be set according to your incubators' manual. Temperatures above are for forced air incubators.