264 PARASITIC DISEASES 



Infection with this parasite does not depend on the humiditv 

 of the soil, or low, wet pastures containing ponds. Probably 

 dusty quarters are responsible in large degree for this disease. 



The symptoms are most evident in pigs weighing from forty 

 to eighty pounds. The first symptom is a cough, occurring on 

 leaving the bed, after exercise and after eating. In badly in- 

 fected cases the paroxysm of coughing is quite severe. The 

 appetite usually remains good and the thriftiness of the pig is 

 not seriously interfered with. The feeding of a suitable ration, 

 and the good care that is usually given young hogs, are responsible 

 for the mildness of the disease. 



The treatment that is of most importance is clean quarters, 

 and the feeding of a ration that will keep the pig growing and 

 healthy. The sleeping quarters should be kept free from dust. 

 Disinfectants should l)e used freely about the quarters. 



The Kidney Worm of Hogs. — Sclerostoma pinguicola is the 

 kidney worm of hogs. It is from 1 to 1.5 inches (25 to 27 mm.) 

 long, and when seen against the kidney fat it appears dark or 

 mottled. It is usually found in the fat in the region of the 

 pelvis of the kidney, xllthough the kidney worm is capable of 

 causing inflammatory changes in the tissues surrounding the 

 kidney and the pelvis of this organ, the disease cannot be deter- 

 mined by any noticeable symptom. Paralysis of the posterior 

 portion of the body is attributed to the presence of kidney worms 

 by stockmen. There are no data by which we may prove that 

 the kidney worm is responsible for this disorder. 



The treatment is preventive. Clean feed, pens, watering 

 troughs and feeding floors are the preventive measures indicated 

 here. It is useless to attempt treatment with drugs, as the worms 

 are out of reach of any drug that may be administered. 



Worms of the Digestive Tract of Poultry. — Poultry are 

 often seriously infested with worms. A small number of the 

 less injurious worms may not cause any appreciable symptoms 

 of disease, but the fowl that harbors them is a source of infec- 



