102 



SWINE PRACTICE 



ingested foreign bodies is a eommon cause of liemorrliage. In ex- 

 treme cases of constipation tlie accumulated fecal matter may be- 

 come so desiccated that it readily produces abrasions of the intes- 

 tinal mucosa, resulting in hemorrhage. Parasites, particularly tlie 

 Gigantorhynchus hirudinaceus, may also produce hemorrhage. In- 



Pig. 23. Arteries and lymph glands in the intestines of the hog. A, Great 

 mesenteric artery; A\ arteries of the intestinal mesentery and its sub- 

 divisions; J, small intestine; C, cecum; Co, colon; G, mesenteric lymph 

 glands forming a chain along the vascular arches of the mesentery; H, 

 group of lymph-nodes along the course of the cecal artery; K, several small 

 lymph-nodes on the colic artery. (From Aureggio's "Album Guide.") 



testinal hemorrhage is a common symptom of hog cholera, anthrax, 

 septicemia, cryptogamic poisoning, caustic poisoning, and severe 

 inflammatory disturbances of the intestine. 



Lesions. — The particular lesion identifying intestinal hemorrhage 

 is the extravasated blood which may or may not be thoroughly 



