38 POULTRY LABORATORY GUIDE 



opaque, and show no well-defined germ or 

 veins, and should shade to a lighter color near 

 the pointed end. 



An egg containing a dead germ at this period 

 will show no clearly defined air cell, the whole egg 

 showing dark and fight colors in spots, which 

 gives it a hazy appearance, the dark portion 

 running irregularly up into the air cell. Mark 

 all eggs containing dead germs and bury them ; 

 also remove all cracked or broken eggs. Why ? 



Any egg which is not clearly understood and 

 over which there is any doubt as to whether it is 

 dead or not should be so marked and placed in 

 the machine, a note being kept whether it 

 hatches or not, and if so what kind of a chick 

 comes out. 



In cold weather the eggs should be left out no 

 longer than necessary. Always examine each 

 egg carefully, and as the appearance of normal 

 and abnormal germs becomes more famihar try 

 to increase the speed of handling the eggs. An 

 experienced tester is able to run through 240 

 eggs in from eight to ten minutes. 



