194 



THE TELOSPORASIDA AND THE COCCIDIA PROPER 



sulfaguanidine per 10 lb body weight was 

 administered to pigs daily with their feed 

 for 7 or 10 days beginning 2 days before 

 experimental infection with 20 to 30 mil- 

 lion sporulated oocysts of E. debliecki and 

 E. scabva, very few if any oocysts were 

 produced and the pigs did not become ill. 

 Similar treatment with sulfaguanidine for 

 3 days beginning on the 2nd day of oocyst 

 discharge reduced the numbers of occysts 

 produced and the period of discharge. 

 Presumably other sulfonamides would also 

 be of value. 



Prevention and Control : Sanitation 

 will prevent coccidiosis in swine. Pens 

 should be cleaned frequently, overcrowd- 

 ing should be avoided, and pigs should be 

 raised under conditions which prevent 

 them from eating many infective oocysts. 



the hot days of October in India (Hire- 

 gaudar). 



Life Cycle : The schizonts and mero- 

 zoites of this species have not been des- 

 cribed. The sexual stages were described 

 most recently by Hemmert-Halswick (1943). 

 They are found beneath the epithelium in 

 the villi of the small intestine. The mi- 

 crogametocytes measure up to 300 by 

 170|i when mature. The macrogametes 

 contain both eosinophilic and basophilic 

 plastic granules which later form the wall 

 of the oocyst. 



Pathogenesis : Diarrhea, loss of 

 weight and even death have been reported 

 in heavily infected animals. Hemmert- 

 Halswick (1943) described marked inflam- 

 matory changes in the small intestine 

 mucosa. 



EIMERIA LEUCKARTI 

 (FLESCH, 1883) 

 REICHENOW, 1940 



Synonyms : Globidium leuckarti. 



Hosts: Horse, ass. 



Diagnosis : Diagnosis can be made 

 by finding the endogenous stages of this 

 coccidium in association with lesions in 

 the intestine. The oocysts are seldom 

 seen in feces because they are so heavy 

 that they do not rise to the surface in the 

 salt solutions used for flotations. 



Location : Small intestine. 



Geographic Distribution : Europe, 

 India. 



Prevalence : Apparently uncommon. 



Morphology : The sporulated oocysts 

 have been described by Reichenow (1940a) 

 and Hiregaudar (1956a). They are ovoid, 

 somewhat flattened at the smaller end, 

 and 75 to 88 by 50 to 59 /i. The oocyst 

 wall is composed of 2 layers, of which the 

 outer is dark brown, 5 to 7)j, thick, opaque 

 and granular, and the inner layer is about 

 1 [i. thick and colorless. The micropyle is 

 distinct. An oocyst residuum is absent. 

 An oocyst polar granule is apparently ab- 

 sent. The sporocysts are elongate, 30 to 

 42 by 12 or \A\x with a Stieda body. A 

 sporocyst residuum is present. The 

 sporozoites are elongate, up to 35 ji long, 

 with a clear globule at the large end. The 

 sporulation time is 21 days at 20 to 22° C 

 in Germany (Reichenow) or 15 days during 



EIMERIA SOLIPEDUM 

 GOUSSEFF, 1935 



Hosts : Horse, ass. 



Location: Unknown. Oocysts found 

 in feces. 



Geographic Distribution : USSR 

 (Azerbaidzhan, Volga basin, Leningrad). 



Prevalence : Gousseff (1935) found 

 this species in 1.4% of 3355 horses, 3% 

 of 251 donkeys and 1% of 161 mules in 

 Russia. 



Morphology : The oocysts are spher- 

 ical, bright orange to yellowish brown, 

 and 15 to 28 jn in diameter. The oocyst 

 wall is double contoured, without a micro- 

 pyle. An oocyst residuum and polar gran- 

 ule are absent. The sporocysts are 

 ellipsoidal or oval, 5by3fi. The sporo- 

 zoites are piriform. The presence or 



