CHAPTER X 



CIRCULATORY ORGANS 



Heart Blood-vessels 

 Hemorrhage Anemia 



Fatty changes Leukemia 



Dilatation Spleen 

 Pericarditis Necrosis 



Endocarditis Hypertrophy 



Tumors Tumors 



Parasites 



Diseases of the circulatory organs may be of common oecureiifc 

 in swine, but such disturbances are rarely recognized clinically. 



Heart 



HEMORRHAGE 



Hemorrhages; of small size are frequently found in the heart muscle. 

 These occur in infectious diseases and. are the result of bacterial 

 emboli or injury of the capillaries by chemic substances incidental to 

 infection. They are of significance to the meat inspector and the diag- 

 nostician. 



Subendocardial hemorrhages are common as a sequel of infectious 

 diseases. They are of diagnostic value and are an indication to the 

 moat inspector of some infectious disease or septic intoxication. 



FATTY CHANGES 



Patty changes in the heart muscle occur in practically all swine 

 that have been fattened for market. The fat particles are found 

 between the muscle cells at first, but later the cells become infiltrated 

 with fat. The heart is enlarged, is paler in color, and its density is 

 diminished. No visible symptoms are evident, in the majority of 

 these cases the swine being excessively fat and refusing to move about 

 without urging. No treatment is required unless this condition arises 

 in a breeding animal. 



