Abstract
Coccidiosis of chickens, caused by species of Eimeria (Protozoa, Apicomplexa), is an intestinal disease of major economic importance worldwide. In the present study, the reproductive characteristics of a precocious line (designated E. tenella Rt3+15) from Australia were investigated in chicken embryos and the implications of the findings briefly discussed.
[1] Bedrnik P., Hiepe T., Mielke D., Droessigk U. 1995. Antigens and immunisation procedures in the development of vaccines against poultry coccidiosis. In: Biotechnology: Guidelines on techniques in coccidiosis research (Eds. J. Eckert, M.W. Shirley and P. Coudert). Office for Official Publication for the European Community, 176–189. Search in Google Scholar
[2] Campbell T.N., Choy F.Y. 2005. RNA interference: past, present and future. Current Issues in Molecular Biology, 7, 1–6. Search in Google Scholar
[3] Gasser R.B., Eckert J., Rohrer L. 1987. Infectivity of Swiss Giardia isolates to jirds and mice, and in vitro cultivation of trophozoites originating from sheep. Parasitology Research, 74, 103–111. http://dx.doi.org/10.1007/BF0053602010.1007/BF00536020Search in Google Scholar
[4] Long P.L. 1965. Development of Eimeria tenella in avian embryos. Nature, 208, 509–510. http://dx.doi.org/10.1038/208509a010.1038/208509a0Search in Google Scholar
[5] Long P.L. 1966. Growth of some species of Eimeria in avian embryos. Parasitology, 56, 575–581. Search in Google Scholar
[6] Long P.L. 1972. Eimeria tenella: reproduction, pathogenicity and immunogenicity of a strain maintained in chick embryos by serial passage. Journal of Comparative Pathology, 82, 429–437. http://dx.doi.org/10.1016/0021-9975(72)90042-410.1016/0021-9975(72)90042-4Search in Google Scholar
[7] Long P.L. 1973. Endogenous stages of a ‘chick embryo-adapted’ strain of Eimeria tenella. Parasitology, 66, 55–62. http://dx.doi.org/10.1017/S003118200004444910.1017/S0031182000044449Search in Google Scholar
[8] Long P.L., Millard B.J., Batty A.F., Davison C. 1982. Immunisation against coccidiosis in chickens: tests under simulated field conditions. Avian Pathology, 11, 131–144. Search in Google Scholar
[9] McDougald L.R., Reid W.M. 1997. Coccidiosis. In: Diseases of poultry (Eds. B.W. Calnek, H.J. Barnes, C.W. Beard, L.R. McDougald and Y.M. Saif). Iowa State University Press, Ames, Iowa, 865–883. Search in Google Scholar
[10] Shirley M.W., Bedrnik P. 1997. Live attenuated vaccines against avian coccidiosis: Success with precocious and egg-adapted lines of Eimeria. Parasitology Today, 13, 481–484. http://dx.doi.org/10.1016/S0169-4758(97)01153-810.1016/S0169-4758(97)01153-8Search in Google Scholar
[11] Shirley M.W., Ivens A., Gruber A., Madeira A.M., Wan K.L., Dear P.H., Tomley F.M. 2004. The Eimeria genome projects: a sequence of events. Trends in Parasitology, 20, 199–201. http://dx.doi.org/10.1016/j.pt.2004.02.00510.1016/j.pt.2004.02.005Search in Google Scholar
[12] Ullu E., Tschudi C., Chakraborty T. 2004. RNA interference in protozoan parasites. Cellular Microbiology, 6, 509–519. http://dx.doi.org/10.1111/j.1462-5822.2004.00399.x10.1111/j.1462-5822.2004.00399.xSearch in Google Scholar
[13] Williams R.B. 2002a. Anticoccidial vaccines for broiler chickens: pathways to success. Avian Pathology, 31, 317–353. http://dx.doi.org/10.1080/0307945022014898810.1080/03079450220148988Search in Google Scholar
[14] Williams R.B. 2002b. Fifty years of anticoccidial vaccines for poultry (1952–2002). Avian Diseases, 46, 775–802. http://dx.doi.org/10.1637/0005-2086(2002)046[0775:FYOAVF]2.0.CO;2Search in Google Scholar
[15] Woods W.G., Richards D.G., Whithear K.G., Anderson G.R., Jorgensen W., Gasser R.B. 2000. High-resolution electrophoretic procedures for the identification of five Eimeria species from chickens and detection of population variation. Electrophoresis, 21, 3558–3563. http://dx.doi.org/10.1002/1522-2683(200011)21:17<3558::AID-ELPS3558>3.0.CO;2-210.1002/1522-2683(200011)21:17<3558::AID-ELPS3558>3.0.CO;2-2Search in Google Scholar
© 2006 W. Stefański Institute of Parasitology, PAS
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.