PARASITES OF THE HOG. 



499 



themselves to the mucous membrane of the intestine, penetrate 

 the tissue with their sharp teeth, and live upon the blood. 



Symptoms. — If present in large numbers the hog becomes pale 

 and bloodless, with rapid loss of condition and anaema. There 

 will be an irritation of the bowels, followed by constipation or 

 diarrhoea. 



Treatment. — Give half-ounce doses of turpentine. Santo- 

 nine, in ten-grain doses, will often remove them. 



CYSTICERCUS ZEMICOLLIS. 



Considerable numbers of this hydatid are found in the abdomi- 

 nal cavity, omentum peritoneum, liver, and kidney. IN^o symp- 

 toms are shown, but without the appearance of much harm they 

 may be destructive to life. The treatment is similar to that of 

 the last mentioned parasite. 



Many hog-raisers speak of kidney worms, characterized by the 

 animal's losing the use of its posterior parts. I have failed to 

 find worms in the kidneys that could produce any well-marked 

 disease. 



General Care and Treatment. — The natural haunts of the 

 pig in a wild state are in the torrid zone. Swine are never found 

 in a northern climate. They must therefore be protected from 

 cold. The pens should be warm, and at the same time well venti- 

 lated. The ventilation should be at the top, as it is absolutely 

 necessary in cold climates to utilize the natural heat of the hog 

 to keep the pen at a moderate temperature. There should be no 

 ventilation below in winter. The floor of the pen should be cov- 

 ered wnth a foot of clay, the feeding floor should have several 

 inches slope to carry off rain. By having the feeding floor open 

 to the rain, sun, and wind, it is kept pure. The lot should slope 

 away from the pen, in order that rain may assist in removing 

 refuse matter from the surface. Straw or leaves are not neces- 

 sary in the sleeping rooms when clay is used. The hog in its 

 wild state grew up and roamed in the forest until maturity. 

 Being allowed free use of their noses, and being omnivorous by 



