212 DISEASES OF SWINE 



products. About fifteen days after commencement of this line of 

 feeding one or two of the animals were noticed to be sick. The 

 next morning one or two more were off feed, and in a few days over 

 half of the herd were sick. These sick hogs showed the following 

 symptoms : They refused food ; they remained huddled off in corners 

 of the feed lot ; breathing was rapid and the surface of the body hot 

 and dry. Those that were first taken sick showed evidences of 

 marked muscular weakness, especially in the hind extremities. 

 The walk was staggering, and one animal was unable to rise at all. 

 The eyes were swollen and discharging a profuse yellowish dis- 

 charge. Marked tenderness was exhibited over the entire body 

 and especially over the belly. Food was absolutely refused, al- 

 though the animals would still drink water. There had been no 

 diarrhea as yet, and most of those that were sick showed instead a 

 marked constipation. 



One of the sickest animals was killed and a postmortem exam- 

 ination made. The lymph-glands in the flank and under the jaw 

 were found to be markedly swollen and softened, and showed spots 

 of blood-red color throughout their substance. When the ab- 

 dominal cavity was opened the entire bowel was found to be 

 acutely inflamed and reddened. On opening the stomach its inner 

 surface was found to be acutely inflamed, and the organ also con- 

 tained a large number of worms. The small intestine was a bright 

 red color, both inside and out, being engorged with blood and 

 decidedly red in color. In the lower portion of the bowel there 

 were found a few beginning ulcers. At the base of the ileocecal 

 valve a number of small grayish-colored elevated spots were found, 

 and when these spots were brushed off, an ulcerated surface was 

 uncovered beneath. 



The large intestine was of a deep port wine color and very soft, 

 being easily torn. On cutting into this portion of the bowel several 

 ulcers were found along its course. The spleen was enlarged and 

 dark in color. The liver was somewhat swollen and softened. 

 When the kidneys were removed from their capsule, one of them 

 was remarkably enlarged, soft, and on its surface showed a regular 

 pepper-and-salt sprinkUng with small dot-fike red spots. On 

 cutting into the kidney its cut surface was engorged with blood 

 and also showed a large number of dark red spots. The lungs 



