Ultrastructure of schizonts and merozoites of Eimeria mitis and E. mivati of the chicken.
Measurements of fourth-generation schizonts and merozoites of Eimeria mitis averaged 10.3 (8.7-12.4) x 7.2 (6.3-8.2) and 5.06 x 1.75 microns, respectively, whereas schizonts and merozoites of E. mivati averaged 8.0 (6.9-9.1) x 6.5 (6.2-6.8) and 5.88 x 0.75 micron, respectively. Schizonts of E. mitis had six or seven merozoites each, whereas schizonts of E. mivati had as many as 20 merozoites. The structural components of the merozoites of both species appeared similar. E. mitis parasites penetrated deeper into the host cells than E. mivati. There was usually only one E. mitis fourth-generation schizont or gamete per host cell and more than one of E. mivati per cell.
Fitz-Coy
S H
SH
Poultry Science Department, Auburn University, Alabama 36849.
Edgar
S A
SA
Mora
E C
EC
D000818:Animals; D002645:Chickens / Q000469:parasitology*; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary; D004539:Eimeria / Q000302:isolation & purification / Q000648:ultrastructure*; D007814:Larva / Q000648:ultrastructure; D008854:Microscopy, Electron; D011201:Poultry Diseases / Q000469:parasitology; D013045:Species Specificity