262 MAINE STATE COLLEGE 



spleen is commonly somewhat enlarged. The liver may be 

 normal or thickly studded with yellowish white necrotic specks the 

 size of a pin head and smaller. The kidneys do not often present 

 any prominent lesions, although they may be quite hypersemic and 

 studded with small hemorrhages. The lymphatic glands are 

 usually distended with blood and present a very red appearance. 

 The lungs are usually entirely normal. 



There is no known method of treatment that is at all satisfac- 

 tory, and no treatment should be ever attempted. 



As soon as the nature of the disease is known it is best to kill 

 and burn all the alfected hogs, or bury them so deep that there is 

 no danger that they will ever come to the surface. All the exposed 

 hogs that fail to take the disease should be kept strictly by themselves 

 until ready for the butcher. After the hogs are all out of the 

 infected pens, the pens should be cleaned out and then left vacant 

 for at least six months. 



Summary. 



Hog Cholera, a contagious disease of hogs, is caused by a 

 bacillus, Hog Cholera bacillus, which multiplies in the large 

 intestines principally, but also is found in the blood and all parts 

 of the body before death. The disease occurs in all parts of the 

 country but particularly in the West and South where large herds of 

 hogs are kept. We have occasional outbreaks in Maine, usually 

 due to infected hogs brought from other States for breeding purposes. 



The best method of preventing outbreaks is to put all imported 

 hogs in pens separate from other hogs, and keep them entirely 

 separate for three or four weeks. If during this time they show 

 no signs of sickness they can safely be put with other hogs. 



All affected hogs had better be killed and deeply buried or 

 burned, but mistakes are often made and care should be exercised 

 in making sure the sick hogs have Hog Cholera before they are 

 destroyed. 



Pens where affected hogs have been kept should be cleaned and 

 left vacant for six months. 



PARTURIENT APOPLEXY (''Milk Fever J' ) 



1 contribute this article to the Annual Report of the Experi- 

 ment Station to satisfy, as far as may be, a want that is felt 

 among the dairymen of the State for some knowledge that will 



