88 The Essentials of Poultry Raising 



and feed them to the baby chicks. After the eggs have all been 

 candled (185), count the infertile ones and estimate the percent- 

 age of fertility. It is well to candle eggs again on the sixteenth 

 day. This is to remove the dead germs. At this time the air 

 cell will be noticed to be very large; if the germ is dead, the 

 air cell will be cloudy and the germ or chick will not be so 

 large as the live chicks. 



210. Eggs set in the incubator do not hatch as well as those 

 set under hens. It is seldom that more than 50 to 65 per cent 

 of all eggs placed in the incubator hatch. The greatest number 

 of deaths occur during the latter part of the first week and 

 during the latter part of the third week of incubation. 



