]30 POULTRY DISEASES 



SUPPURATIVE INFLAMMATION OF THE GIZZARD 



A Single Comb Rhode Island Red cock two years old, used 

 as a breeder, showed a slight diarrhea, '^mopiness" and no 

 interest in life. He became gradually weaker and died. 



The carcass Avas thin there being an absence of retroperi- 

 toneal fat. There was a suppurative inflammation of the pos- 

 terior half of the gizzard. The posterior portion of the giz- 

 ard cavity contained a quantity of cheesy pus. The liver 

 weighed 60 grams and presented a greyish mottled appear- 

 ance. The testes were in an atrophic condition showing that 

 he was entirely inactive as a breeder. 



A section of the gizzard including a portion of apparently 

 normal gizzard tissue and through the involved area was pre- 

 pared and sectioned and stained with hematoxylon, eosin and 

 picric acid. A portion of the adjacent muscle was densely 

 infiltrated with polymorphonuclear leukocytes as well as a 

 zone of newly formed connective tissue. This was apparently 

 a chronic suppurative inflammation. The pus r-onsisted of 

 fibrinous material and masses of pus cells. 



Sections of the liver prepared and stained with hematoxylon 

 and eosin showed intense active and passive congestion with 

 hemaciderosis. There was an acute inflammation, the poly- 

 morphonuclear leukocytes appearing more densely infiltrated 

 in the perivascular spaces and immediately adjacent tissue. In 

 some areas the inflammation appeared rather diffused while 

 in other parts of the liver there appeared a tendency toward 

 focalized areas of inflammation. 



CALCULI 



Urinar}^ sediment in the form of calculi has been found in 

 the fowl. These deposits may be located in the small collect- 

 ing and transporting tubules of the renal tissue and may 

 consist principally of uric acid. These deposits appear as 

 small nodules. 



PURULENT INFLAMMATION OF THE ABDOMEN OF THE 



HEN 



Purulent abdominal inflammation is quite common in hens. 

 Especially is this the case with hens of two or more years of 

 age. Nonspecific infections are the cause of a portion of these 

 cases. 



The following case serves as an example of purulent peri- 

 tonitis of the hen. 



The subject was a two-year old S. C. Rhode Island Red hen. 

 After death the unfeathered region of the head was of a deep 



