1999, Number 4
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Vet Mex 1999; 30 (4)
Findings of Eimeria tenella in epithelial cells of the bursa of Fabricius
Hernández VX, Juárez EMA, Calderón AN, Téllez IG
Language: English/Spanish
References: 23
Page: 285-288
PDF size: 67.44 Kb.
ABSTRACT
This paper describes the observations during an experiment designed to study the response of polymorphonuclear leukocytes in
E. tenella infections with chickens treated with 5-fluorouracil as a granulocytopenic agent. One hundred and twenty broilers were randomly assigned into the following 4 groups of 30 birds each: Group 1, control group or white group; Group 2 treated with 200 mg/kg body weight of 5-fluorouracil (5-FU); Group 3 infected orally with 5,000 sporulated oocysts of
Eimeria tenella, and Group 4 infected with
E. tenella after 5-FU treatment.
E. tenella was given to 5 chicks in each group at one of the following days: 2, 4, 6, 8, 10 and 12, 5-FU postinoculation (17 days of age). Seven days postinfection, histopathologic preparations of several organ tissues were made. Several life-stages of
E. tenella were observed in the bursa of Fabricius in 25 and 24 chickens in Groups 3 and 4, respectively. Moderate or severe epithelial hyperplasia, subepithelial mononuclear infiltrate, and occasionally intraepithelial cysts were associated with the developing parasites.
REFERENCES
McDougal RL, Reid MW. Coccidiosis. In: Calnek BW, Barnes HJ, Raid WM, Yoder HW, editors. Diseases of poultry. Ames (IO): Iowa State University Press, 1991:780-787.
Long PL. Coccidiosis in poultry. Poultry Biol 1987;95:1-25.
Long, PL. Coccidiosis of man and domestic animals. Boca Ratón (FL): CRC Press, 1990:63-84.
Fernando MA, Rose ME, Millard BJ. Eimeria spp. of domestic fowl: the migration of sporozoites intra- and extra-enterically. J Parasitol 1987;73:561-567.
Davies SFM, Joyner LP. Infection of the fowl by the parenteral inoculation of oocysts of Eimeria. Nature 1962;194:996-997.
Sharma NN. Response of the fowl (Gallus domesticus) to parenteral administration of seven coccidial species. J Parasitol 1964;50:509-517.
Long PL, Rose ME. Active and passive immunization of chickens against intravenously induced infections of Eimeria tenella. Exp Parasitol 1965;16:1-5.
Rose ME, Hesketh P. Eimeria tenella: localization of the sporozoites in the caecum of the domestic fowl. Parasitology 1991;102:317-324.
Joyner LP. Host and site specificity. In: Long PL, editor. The biology of the coccidia. Baltimore (MA): University Park Press, 1990:35-65.
Vervelde L, Vermeulen AN, Jeurissen SHM. Common epitopes on Eimeria tenella sporozoites and cecal epitelium of chickens. Infect Immun 1993;61:4504-4506.
Leathem WD. Organ specificity of E. tenella in cecectomized chickens. J Protozool 1968;15:18-23.
Zhan J, Wilson E, Yang S, Healey MC. Increasing the yield of Eimeria tenella oocysts in primary chicken kidney cells. Avian Dis 1996;40:63-67.
McLoughlin DK. The influence of dexamethasone on attempts to transmit Eimeria meleagrimitis to chickens and E. tenella to turkeys. J Protozool 1969;16:145-147.
Kogut HM, Eirmann L. The effect of cyclosporin A on the development of Eimeria in non-specific host. Int J Parasitol 1991;21:979-983.
Kronke M, Leonard WJ, Depper JM, Arya SK, Wong-Stau F, Gallo RC, et al. Cyclosporine A inhibits T cell growth factor at the level of mRNA transcription. Proc Natl Acad Sci 1984;81:5214-5218.
Kogut MH, Long PL. The effect of silica injections on the rejection of Eimeria from nonspecific hosts. J Parasitol 1981;67:960-961.
Long PL. Schizogony and gametogony of E. tenella in the liver of chick embryos. J Protozool 1971;18:17-18.
Rodriguez R, Dykstra DD, Fletcher OJ. Eimeria brunetti in epithelial cells of bursa of Fabricius in gnotobiotic chickens. Avian Dis 1975;19:366-369.
Anderson WI, Giambrone JJ, Fletcher OJ, Eidson CS, Reid WM. Demonstration of Eimeria tenella in bursa of Fabricius of chickens. Avian Dis 1976;20:752-755.
Strout RG, Ouellette CA. Gametogonia of E. tenella in cell cultures. Science 1969;163:695-696.
Alroy J, Goyal V, Luckacs NW, Taylor RL, Strout RG, Ward HD, Pereira MEA. Glucoconjugates of the intestinal epithelium of the domestic fowl (Gallus domesticus): a lectin histochemistry study. Histochem J 1989;21:187-193.
Lawn AM, Rose ME. Mucosal transport of Eimeria tenella in the cecum of the chicken. J Parasitol 1982;68:1117-1123.
Lillehoj HS, Trout JM. CD8+ T cell-coccidia interactions. Parasitol Today 1994;10:10-14.
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