502 Coccidia in the Intestines. 



sheep ; a small round cell infiltration is seen in the neighl)orhood of tlie 

 invaded tissue. 



Literature. :\raiotel, Bull., 19()G, 373.— Marotel & Moiissu, 1901, 470.— Martin, 

 Eev. vet., 1909, 341. 



(c) Intestinal Coccidiosis in Carnivora. 



Coccidia are rarely found in the intestinal villi of dogs and cats ; 

 they were originally held to he Coccidiuin perforans, hut, according to 

 Railliet, they are a special kind (Coccidium higeminum, according to 

 Martin Diplospora higemina) ; apparently they do not produce any 

 morbid symptoms. — Dages found coccidia in the epithelia of the in- 

 testinal mucosa which, according to Martin, appear to he identical with 

 Cocc. cuniculi. 



Literature. Martin, Eev. vet., 1909, 345.— Ziirn, Yortr. f. Thieraerzte, 1878, 

 II, H, 2 (Lit.). 



(d) Intestinal Coccidiosis of Rabbits. Coccidiosis intestinalis 

 cuniculi. 



Intestinal coccidiosis of rabbits caused by Coccidium perforans 

 (according to Martin Eimeria cuniculi) is observed either alone or in 

 combination with hepatic or nasal coccidiosis, (see page 28), and under 

 similar circumstances. 



Anatomical changes are usually found in the small intestine, and 

 they consist in an intense intestinal catarrh with accumulations of 

 tenacious, somewhat reddened mucus on the swelled and moderately 

 reddened mucosa. The mucosa also exhibits small whitish nodules, not 

 larger than a lentil. These nodules represent enlarged glands of Lie- 

 berkiihn and epithelial cells of villi invaded by coccidia. 



The symptoms are either identical with those of hepatic coccidiosis 

 (see there) ^vith the development of a cachectic condition, or the affec- 

 tion runs the course of a violent enteritis with marantic diarrhea fol- 

 lowed by death before emaciation has had time to occur. 



The diagnosis is made either by the microscopic discovery of the 

 coccidia which are present in large numbers in the feces, or by post- 

 mortem examination. If hepatic coccidiosis alone is present, only few 

 coccidia can be found in the feces. 



The treatment is similar to that in acute intestinal catarrh (see 

 page 330) ; it is, however, usually not successful. Systematic prophy- 

 laxis promises much better results. It is based upon the same principle 

 as prophylaxis against hepatic coccidiosis (see there). 



Literature. Martin, Eev. vet., 1909, 201.— Ziirn, Vortr. f. Thieraerzte, 1878, 

 I, H, 2 (Lit.). 



(e) Intestinal Coccidiosis in Fowl. Coccidiosis intestinalis avium. 



(Weisse Ruhr des Gefilgels [German].) 



Occurrence. Intestinal eoccidiosis is observed among all 

 species of domestic fowl, particularly among young animals, and 

 in enzootic distribution during the warm season. McFadyean 

 lias seen coccidiosis among pheasants. 



