BLOODY EGGS 405 



cause, and such an egg is termed a bloody egg. When boiled, 

 such eggs appear brownish, and they are distinctly unappetizing- 



Fertile egg allowed to die after 36 hours of Infertile egg after 36 hours of incubation. 



Incubation. « 



Fertile egg after 48 hours of incubation. Infertile egg after 48 hours of incubation. 



(Courtesy U. S. Dep't Agriculture) 

 Fig. 263. — Changes affecting the appearance of eggs. 



looking. It is virtually impossible to remove the affected part, 

 as in the case of the blood clot, hence the egg is useless. Bloody 

 eggs are caused by an irritation or injury to the wall of the ovi- 



