198 SOUTHERN PORK PRODUCTION 



special angle owing to the methods necessary for in- 

 fection. 



Treatment for intestinal worms. — Preventive treatment 

 is to be used in preference to medicinal, although the lat- 

 ter must be resorted to at times. It is very important to 

 keep the hogs healthy and in a thrifty, growing condition. 

 General sanitary and precautionary measures must be 

 used in preventing infection and spread of these parasites. 

 When an infection occurs medicines have to be resorted 

 to. Many vermifuges and vermicides have been recom- 

 mended. Turpentine, santonin, calomel and areca nut 

 are all excellent for use with swine. Doses of a teaspoon- 

 ful of turpentine, eight grains of santonin, five grains of 

 calomel, or three drachms of areca nut are common 

 doses. These should be followed by a physic of castor 

 oil and repeated in two or three weeks if necessary. In 

 addition to the above it is always well to keep before the 

 hogs a worm preventive mixture such as recommended 

 on page 146. 



Lung worms. — The lung worms are present in most 

 localities and are described by Craig as the most common 

 parasite of swine. When conditions are favorable for its 

 development, they may become present in such large 

 numbers as to lead to bronchitis, pneumonia and other 

 lung diseases. The lung worm is about the size of a 

 thread and ranges up to nearly 2 inches in length. The 

 chief source of infection seems to be by the breathing of 

 dusty air bearing the eggs or encystments. The method 

 of prevention and treatment is summed up in sanitation, 

 proper feeding and proper management. 



