PREPARING POULTRY PRODUCTS 



475 



Spots. — Eggs in which mould or bacteria has developed 

 in isolated areas inside the shell are called "spots." They 

 are not fit for food. Eggs in which the yolk has adhered to 

 the shell are also classed as spotS, being known as stuck 



Fig. 230 



^^W*^.~, 



\ 



/ 



Live fertile egg after seventy-two hours of incubation. 

 Bureau of Animal Industry.) 



(Courtesy of 



spots. These eggs are unfit for food, but may be used for 

 tanning purposes. 



Blood Rings. — ^Fertile eggs in which the embryo has so far 

 developed as to show considerable blood and then died, the 

 blood is usually left in a more or less imperfect circle sur- 



