Made available in DSpace on 2016-04-28T20:15:22Z (GMT). No. of bitstreams: 1 Janaina Soledad Rodrigues-pdf.pdf: 4634356 bytes, checksum: 26f90dcd5b3f127e6130fc4b467f87d1 (MD5) Previous issue date: 2010-02-24 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Cystoisospora felis is an obligatory intracellular parasite that infecting felines of diverse species, that were contaminated by ingesting sporulated oocysts end/or intermediated host harboring monozoic cysts of this species. In this study, 10 Japanese quails were infected with a pure inoculum consisted by 106 sporulated oocysts of C. felis, after 60 days post infection, liver, spleen, and bursa of Fabricius were removed from each quail and they were given to feed to 3 kittens separately. A forth kitten was infected with 106 sporulated oocysts orally. After shedding oocysts by kittens, they were allowed to sporulate. After that, 50 sporulated oocysts of each infection were measured, having as means of Length, Width and Shape Index the following values: 44.30?2.30, 31.30?1.90 ?m and 1.40?0.1 from kitten fed on liver, 46.30?2.20, 32.90?1.90 ?m and 1.40?0.1 from kitten fed on spleen, 44.80?2.20, 31.20?1.60 ?m and 1.40?0.1 from kitten fed on bursa of Fabricius, and 43.60?1.60, 30.80?1.60 ?m and 1.40?0.1 from kitten infected with sporulated oocysts orally as well as C. felis prepatent and patent periods. By analyzing the frequency of the distribution of values was observed that when the source of infection were liver and spleen, the distribution was more homogeneous, which did not occur when was used cloacal bursa or sporulated oocysts as sources of infection. As conclusions in this work, there were no significant differences among de morphometry of the sporulated oocysts, independent of the source of infection. Moreover, the pre-patent and patent were similar when cats fed on infected viscera of quails experimentally infected with sporulated oocysts of C. felis previously when compared with the animal that received 1x106 sporulated oocysts orally. / Cystoisospora felis ? um parasito intracelular obrigat?rio que acomete fel?deos de diversas esp?cies, que podem se contaminar tanto pela ingest?o de oocistos esporulados, quanto pela ingest?o de tecidos de hospedeiros intermedi?rios infectados previamente com oocistos esporulados. Neste estudo, 10 codornas japonesas foram infectadas com um inoculo puro de oocistos esporulados de C. felis na concentra??o de 1 x 106, e ap?s 60 dias, ba?o, f?gado e bursa dessas codornas infectadas foram oferecidos a tr?s filhotes de gato livres de infec??o. Um quarto gato ainda foi infectado com uma suspens?o de 1 x 106 oocistos esporulados de C. felis por via oral. Ap?s o in?cio da elimina??o, os oocistos foram colocados para esporular e, ap?s a esporula??o, 50 oocistos oriundos de cada infec??o foram mensurados, tendo como m?dias de di?metros maior (DM), menor (dm) e ?ndice morfom?trico os seguintes valores: 44,30?2,30, 31,30?1,90 ?m e 1,40?0,1 para os oriundos do animal infectado com f?gado, 46,30?2,20, 32,90?1,90 ?m e 1,40?0,1 para os oocistos do animal infectado com ba?o, 44,80?2,20, 31,20?1,60 ?m e 1,40?0,1 para os oocistos oriundos do animal infectado com bursa e 43,60?1,60, 30,80?1,60 ?m e 1,40?0,1 para os oocistos do animal que recebeu oocistos por via oral. Ao analisar a distribui??o da frequ?ncia dos valores dessas medidas, pude-se observar que quando a fonte de infec??o utilizada foi f?gado e ba?o, a distribui??o foi mais homog?nea, o que n?o ocorreu quando utilizou-se bursa cloacal ou oocistos esporulados como fonte de infec??o. Com estes resultados foi poss?vel concluir que n?o se observaram diferen?as significativas na morfometria dos oocistos de C. felis independente da fonte de infec??o. Al?m disso, os per?odos pr?-patente e patente foram semelhantes quando os gatos livres de infec??o foram alimentados com v?sceras de codornas, infectadas previamente com oocistos esporulados de C. felis em compara??o com o animal que recebeu 1 x 106 oocistos esporulados por via oral.