Diseases or the Hog. 129 



from living in swampy, malarial places. Or it may result 

 from over-feeding- on heating, nutritious, and highly rich 

 food, forcing the animal to take on flesh to rapidly. This 

 form of cholera is produced by a germ that is invisible to the 

 naked eye, and travels, or can be carried through the air 

 for a considerable distance, locating itself with any hog it 

 comes in contact with. Owing to the extreme contagious 

 character of this malady, as soon as it develops in a herd, 

 every hog, regardless of age, size, or condition falls a prey 

 to it. Contagious pneumo-enteritis appears in two forms : 

 The Erysipelatous Form, and the Malignant Sore Throat 

 Form. Therefore we will take them up separately, in order 

 not to confuse the reader. 



ERYSIPELATOUS FORM OF CONTAGIOUS 

 PNEUMO-ENTERITIS CHOLERA— is the most com- 

 mon. 



SYMPTOMS : — Loss of appetite, animal appears dull. 

 When standing, keeps the head low, and is not inclined to 

 move unless compelled to do so. Sometimes the hog will 

 make an effort to vomit. When it lies down it is almost 

 impossible to persuade it to change its position. Urine is 

 passed with difficulty, and is high colored. The excrement 

 or dung is dark colored and hard, indicating constipation. 

 Usually in a few hours, but sometimes not until the day fol- 

 lowing, the peculiar symptoms of this form of cholera de- 

 velops in the shape of, dark red purple blotches, gradually 

 changing into a bluish black color, and are seldom forgotten 

 after once being seen. These spots are usually observed 

 when they appear on the white hogs; but in dark hogs it' 

 will be necessary to search for them. They are usually lo- 

 cated on the neck, throat, ears, breast, and inside the fors^- 

 legs. The nostrils discharge a dark purple fluid, and the 



