PARASITES IN THE STOMACH OF SWINE 153 



is a useful remedy. (Dissolve cupri sulphas 1 pound in 

 water Ox. Dose : 3 months old lamb, 3 vi ; 6 months, 3 xii ; 

 1 year, _3xviii; 2 years, 3xxv.) Fast twenty-four hours 

 before giving. In the meantime the sheep should be fed 

 ample grain, sheltered from the wet, tagged and given the 

 best possible care. Access to coarsely powdered leaf tobacco 

 mixed with salt is also helpful. 



Prophylaxis. — Keeping the sheep in small flocks, con- 

 stantly changing the pasture, dipping to prevent ticks and 

 feeding ample grain (corn and oats mixed) will accompHsh 

 a great deal in the way of prevention. 



PARASITES IN THE STOMACH OF SWINE. 



The following parasites have been noted in the stomach 

 of swine: 



(a) Strongylus Rubidus: This parasite occurs commonly 

 in the United States. In the abattoir at Washington, D. C, 

 25 to 75 per cent, of all swine killed were found in- 

 fested. It has been known to produce a chronic diph- 

 theroid inflammation of the mucosa with anemia and emaci- 

 ation leading to death. In one instance a mmiber of brood 

 sows kept in a filthy, unfloored pen, became infested. The 

 feces contain a large number of eggs. 



(6) Spiroptera Strongylina: Male 10 to 13 mm. long, 

 female 12 to 20 mm. It is a slender white worm which 

 produces in the submucosa small tumors. It occasionally 

 bores its way into the mucous membrane producing a 

 severe ulcerative gastritis. In marked infestations this 

 parasite has produced a violent inflammation of the stomach 

 ending in death in from three to four days. It is most 

 commonly met with in wild boars and peccary. 



(c) Gnathostoma Histidum: Male 15 to 25 cm. long, 

 female 2 to 3 cm. This is a long tapering worm provided 

 with spiculse. It is found principally in the mucous mem- 

 brane of the base of the stomach, its head attached. It is 

 known to produce severe gastritis, a thickening of the 

 gastric wall, dilatation of the stomach, digestive disturb- 

 ances and eventually cachexia. 



Digitized by Microsoft® 



