Stomach- worm Disease in Koes. Parasites in tlie Stom?cli of Swine. 461 



ferential diagnosis has to consider particularly enteritis para- 

 tubercnlosa (see Vol. I). 



Treatment and Prophylaxis. In cases not very much ad- 

 vanced Schnyder had good results from the administration of 

 flores cinse (150-200 gni. prepared as a decoction). One may also 

 use the drugs mentioned under worm disease of sheep ; the 

 doses have to be increased proportionately (see page 458). 

 Klein obtained favorable results with creosote. 



The prophylaxis calls for measures like those recommended 

 against strongylosis of sheep (see page 458). 



Literature. Blimschy, Unters. iiber d. Verand. d. Schleimh. b. d. Magen-Darm- 

 Strongylose, Inaiig. Diss., 1906 (Lit.).— Klein, Vet. Jahrb., 1906, 131.— Lienaux Ann., 

 1900, 438.— Ostertag, Z. f. Flhyg., 1890, I, 1.— Schnyder, Beitr. z. Keuntn d. Magen- 

 Darm-Strongylose, Inaug. Diss., 1906 (Lit). * 



Stomach-worm Disease in Roes. Roes are sometimes infected and 

 many may die in consequence of invasion by Strongylus contortus, Stron- 

 gylus Ostei'tag'i and Strongylus filicollis. In more intense invasions the 

 affection leads to hvdremie cachexia (Feser, W. f. Tk., 1903. — Stroh., 

 Z. f. Flhyg., 1905, XV, 163). 



(d) Parasites in the Stomach of Swine. 



The following nematodes occur in the stomach of hogs : 



1. Spiroptera strongyhna; a slender whitish worm, males 10 to 

 thirteen mm., females 12 to 20 mm. long; it forms small tumors in the 

 submucosa; it bores into the mucosa and may in this manner cause 

 serious gastritis. This parasite has repeatedly caused enzootics, ter- 

 minating fatally within three to four days (V. Ratz). 



2. Gnathostoma hispidum (Cheiracanthus hispidus) ; cylindrical 

 worm, 2 to 3 cm. long, thickened at the anterior end, adhering to the 

 gastric mucosa or boring into it, the posterior end projecting free into 

 the lumen. The worm produces intense inflammation of the nuicosa, 

 thickening of the gastric wall, dilatation of the stomach, disturbances 

 of digestion, cachexia (Csokor) ; the parasite was found in Hungarian 

 hogs by y. Ratz and Stroese. 



3. Simondsia paradoxa; found in England by Simonds, in Hun- 

 gary by V. Ratz in the stomach of swine; the females, 45 mm. long, \yere 

 seen inside of cysts of the gastric wall, projecting with their head into 

 the cavity ; the males are found free in the gastric contents. 



4. Strongylus rubidus; This worm was found by Hassall and 

 Stiles in 25 to 75 per cent of all hogs examined in the stockyards of 

 Washington, D. C. ; Oppermann saw an enzootic outbreak of the disease 

 due to this worm among breeding sows of a farm in Westphalia, Ger- 

 many. The infection occurred while the animals were in an unpaved 

 yard continually contaminated with manure. The worms produce diph- 

 theroid chronic inflammatory changes in the gastric mucosa, which lead 



