References

• BAFUNDO, K. W. and JEFFERS, T. K. (1987). European patent application number 0258045.
   Google Scholar
• CHAPMAN, H. D. (1986). Drug resistance in coccidia: recent research. In: Research in Avian Coccidiosis, pp 330–347. Edit. McDougald, L. R., Long, P. L. and Joyner, L. P. Athens, GA USA.
   Google Scholar
• CHAPMAN, H. D. (1987a). Countering drug resistance in eimerian parasites of the fowl. In: Combating resistance to xenobiotics, pp 54–61. Edit. Ford, M. G., Holomon, D. W., Khambay, B. P. S. and Sawicki, R. M. Ellis Horwood Series in Biomedicine, Ellis Horwood Ltd.
   Google Scholar
• CHAPMAN, H. D. (1987b). Control of a line of E.tenella, partly resistant to monensin, by including toltrazuril discontinuously in the drinking water of chickens. Journal of Comparative Pathology 97: 21–27.
   PubMed Web of Science ®Google Scholar
• CHAPMAN, H. D. (1988). Efficacy of toltrazuril, sulphaquinoxaline + pyrimethamine and amprolium + ethopabate against field isolates of E.tenella. In: Proceedings of the 5th European Multicolloquium of Parasitology, Budapest, Hungary, 4–9 September 1988.
   Google Scholar
• DAVIS, P. J. and HARRIS, P. (1985). UK patent specification number 2144331A.
   Google Scholar
• FRIGG, M., BROZ, J. and WEBER, G. (1983). Compatibility studies of ionophorous anticoccidials with various antibiotics and chemotherapeutics in broiler chicks. Archiv fur Geflugelkunde 47: 213–220.
   Web of Science ®Google Scholar
• HABERKORN, A. (1984). Bay Vi 9142, a new coccidiocidal drug and a new concept for prevention of coccidiosis. pp 774. Proceedings of the XVII World's Poultry Congress, Helsinkl, Finland.
   Google Scholar
• JEFFERS, T. K. (1986). Attenuation of coccidia – a review. In: Research in Avian Coccidiosis, pp 482–501. Edit. McDougald, L. R., Long, P. L. and Joyner, L. P. Athens, GA, USA.
   Google Scholar
• JOYNER, L. P. and NORTON, C. C. (1973). The immunity arising from continuous low-level infection with Eimeria tenella. Parasitology 67: 333–340.
   PubMed Web of Science ®Google Scholar
• KEMP, J. (19?8). Monensin poisoning in turkeys. Veterinary Record 102: 467.
   Web of Science ®Google Scholar
• KESHAVARZ, K. and McDOUGALD, L. R. (1982). Anticoccidial drugs: growth and performance depressing effects in young chickens. Poultry Science 61: 699–705.
   PubMed Web of Science ®Google Scholar
• LONG, P. L. (1987). Coccidiosis in poultry. CRC Critical Reviews in Poultry Biology 1: 25–50.
   Google Scholar
• McDONALD, V., SHIRLEY, M. W. and BELLATTI, M. A. (1986). Eimeria maxima: characteristics of attenuated lines obtained by selection for precocious development in the chicken. Experimental Parasitology 61: 192–200.
   PubMed Web of Science ®Google Scholar
• McDOUGALD, L. R. (1982). Chemotherapy of coccidiosis. In: The Biology of the Coccidia, pp 373–427. Edit. Long, P. L. Baltimore, USA, University Park Press.
   Google Scholar
• NORTON, C. C. and JOYNER, L. P. (1986). Avian coccidiosis: the administration of encapsulated oocysts. Parasitology 92: 499–510.
   PubMed Web of Science ®Google Scholar
• ORDIDGE, R. M., SCHUBERT, F. K. and STOKER, J. W. (1979). Death of horses after accidental feeding of monensin. Veterinary Record 104: 375.
   Web of Science ®Google Scholar
• RAINE, H. (1988). Prospects for additive-free feeds. World's Poultry Science Journal 44: 70–72.
   Web of Science ®Google Scholar
• REID, W. M., LONG, P. L. and MCDOUGALD, L. R. (1984). In: Diseases of Poultry. Eighth Edition. Edit Hofstad, M. S., Barnes, H. J., Calnek, B. W. and Reid, W. M. The Iowa State University Press, Ames, Iowa, USA.
   Google Scholar
• ROSE, M. E. (1985). The Eimeria. Current Topics in Microbiology and Immunology 120: 7–17.
   Web of Science ®Google Scholar
• SHIRLEY, M. W. (1988). Controlling coccidiosis with a live attenuated vaccine. In: Science and the Poultry Industry, pp 18–19. Edit. Hardcastle, J. Agriculture and Food Research Council, London.
   Google Scholar
• VEZEY, S. A. (1978). Coccidiosis in laying birds. In: Avian Coccidiosis, pp 495–500. Edit. Long, P. L., Boorman, K. N. and Freeman, B. M. Edinburgh, British Poultry Science Ltd.
   Google Scholar
• WARDROPE, D. D., MACLEOD, N. S. N. and SLOAN, J. R. (1983). Outbreak of monensin poisoning in cattle. Veterinary Record 112: 560–561.
   Web of Science ®Google Scholar