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A guide to laboratory techniques used in the study and diagnosis of avian coccidiosis.
A procedure and simple key is given to enable a provisional identification of five species of Eimeria: colour illustrations of gross lesions will aid the identification. Laboratory methods are… Expand
Genetics of resistance to coccidiosis: response of inbred chicken lines to infection by Eimeria tenella and Eimeria maxima.
1. Experiments have been carried out to compare weight gain, mortality and oocyst production in 7 inbred and partially inbred lines of chickens after challenge with the coccidial parasites Eimeria… Expand
Strain variations within Eimeria meleagrimitis from the turkey.
During the course of a field study of coccidiosis in turkeys, Eimeria oocysts were found which had much smaller dimensions that any previously recorded isolate from the turkey. These oocysts were… Expand
Studies on Eimeria dispersa Tyzzer 1929 in turkeys.
Eimeria dispersa was isolated from young, intensively housed turkeys in Britain. The parasite has morphological features in common with those of the original description. At least two generations of… Expand
Variation in susceptibility of inbred lines of chickens to seven species of Eimeria.
The pattern of oocyst production of 8 inbred lines of chickens was compared for each of the 7 species of Eimeria which infect this host. Both the overall numbers and the pattern of oocyst production… Expand
The structure and development of the macrogamete and oocyst of Eimeria acervulina.
The fine structure of the macrogametocyte, macrogamete and the early stages in the formation of the oocyst wall of Eimeria acervulina have been described and compared with other species of Eimeria.… Expand
The effect of immunity on the early events in the life-cycle of Eimeria tenella in the caecal mucosa of the chicken.
A comparison was made between the early events (asexual stages) in the life-cycle of Eimeria tenella in specifically immunized and control chickens. Particular attention was paid to the quantitative… Expand
Immunological differences in Eimeria maxima: effect of a mixed immunizing inoculum on heterologous challenge.
The immunological differences known to exist between laboratory strains of Eimeria maxima was confirmed. Protection against challenge with different strains or field isolates of the species could be… Expand
Some observations on the sexual differentiation of Eimeria tenella using single sporozoite infections in chicken embryos.
Unsporulated oocysts were recovered from the allantoic cavity of 5 chicken embryos inoculated with a single sporozoite of Eimeria tenella; some of these oocysts sporulated. Both macrogametes and… Expand
Observations on a drug resistant strain of Eimeria tenella.
- B. Millard
- Biology, Medicine
- Research in veterinary science
- 1 July 1970
A strain of Eimeria tenella from the field was found to be resistant to the quinoline group of coccidiostats. There were no significant differences in mortality or microhaematocrit levels in chickens… Expand