500 



POULTRY PRODUCTION 



by the government authorities to be unfit for human food, 

 and are a total loss, except that in the vicinity of tanneries 

 they may be disposed of at a very low price for use in tan- 

 ning certain classes of leather goods. 



Fia. 213 



^ ^M^^^i 



An infertile egg after seven days of incubation. (Courtesy of Bureau of 

 Animal Industry.) 



Rots. — Eggs that are so far decomposed througli the agency 

 of mould or bacteria as to be totally unfit for food are termed 

 rots. The appearance of rots varies with the kind of organism 

 causing its decomposition. They are severally designated 

 as black, white, pink, and blood rots. All are equally unfit 

 for human consumption. 



