POULTRY DISEASES 
23 
Pig. 23. 
Figure 23.—Degeneration of ovary of a hen showing tumor-like mass; a, shows 
ova, which have undergone degeneration. Note the shrunken appearance and in 
some, shrivelled pedicle-like structures joining them to the ovary mass. The con¬ 
tents of these masses are cheesy (caseation necrosis). Natural size. 
