Results 161 to 170 of about 85,305 (202)

Co-infection of chickens with Eimeria praecox and Eimeria maxima does not prevent development of immunity to Eimeria maxima

Veterinary Parasitology, 2009
Previous studies revealed an ameliorating effect of Eimeria praecox on concurrent E. maxima infection, such that weight gain, feed conversion ratio, and intestinal lesions were nearly identical to uninfected or E. praecox-infected controls. The purpose of the present study was to determine if protective immunity against E.
M, Jenkins, R, Fetterer, K, Miska
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Characterization and localization of an Eimeria-specific protein in Eimeria maxima

Parasitology Research, 2013
A recently completed analysis of Eimeria maxima transcriptome identified a gene with homology to sequences expressed by E. tenella and E. acervulina but lacking homology with other organisms including other apicomplexans. This gene, designated Eimeria-specific protein (ESP), codes for a protein with a predicted molecular weight of 19 kDa.
Raymond H, Fetterer, Ryan S, Schwarz, Katarzyna B, Miska, Mark C, Jenkins, Ruth C, Barfield, Charles, Murphy   +5 more
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Immunogenicity of a Single Sporocyst of Eimeria maxima

The Journal of Parasitology, 1978
Eight out of a total 40 chickens infected with single sporocysts of Eimeria maxima produced infective oocysts. These 8 chickens, when challenged with 4 X 10(5) oocysts per bird at 28 days postinfection, showed at least twice the percent average weight gain of the previously unexposed chickens, indicating that partial immunity was probably conferred by ...
E H, Lee, M A, Fernando
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Ultrastructural observations on the sporogony of Eimeria maxima

International Journal for Parasitology, 1985
Abstract Pittilo R. M. and Ball S. J. 1985. Ultrastructural observations on the sporogony of Eimeria maxima. International Journal for Parasilology 15: 617–620. Sporogony in Eimeria maxima was found to commence with a contraction of the oocyst cytoplasmic mass which was limited by a single membrane.
R M, Pittilo, S J, Ball
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The schizogony of eimeria maxima in the chicken

Zeitschrift f�r Parasitenkunde, 1971
The early part of the life cycle of Eimeria maxima has been reexamined. The occurrence of a schizont in the deep glands 48 h after oocyst inoculation has been confirmed and the schizont illustrated for the first time. Further observations indicate that three generations of schizonts occur before gametogony.
B. J. Millard, J. W. A. Bradley, P. L. Long   +2 more
openaire   +1 more source

Eimeria praecox infection ameliorates effects of Eimeria maxima infection in chickens

Veterinary Parasitology, 2008
The effect of Eimeria praecox on concurrent Eimeria maxima infection was studied in susceptible chickens. Clinical signs of coccidiosis were assessed in single E. praecox or E. maxima infections and compared to dual infection with both Eimeria species. Groups infected solely with 10(4)E.
M, Jenkins, P, Allen, G, Wilkins, S, Klopp, K, Miska   +4 more
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Eimeria maxima: Identification of gametocyte protein antigens

Experimental Parasitology, 1989
The antigenicity of Eimeria maxima gametocyte proteins during the course of an infection and when injected into mice and rabbits was demonstrated using the Western blotting technique. Serum taken from chickens at various times postinfection reacted to a few gametocyte proteins, with the strongest reactivity seen with serum taken 14-days postinfection ...
M G, Wallach, D, Mencher, S, Yarus, G, Pillemer, A, Halabi, T, Pugatsch   +5 more
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Cross protection studies with Eimeria maxima strains

Parasitology Research, 2005
The purpose of this study was to determine whether differences in fecundity of Eimeria maxima isolates were related to their abilities to elicit cross-protective immunity. Immunizations were initiated by low-dose gavages of sporulated oocysts to day-old broiler chicks under conditions that allowed parasite recycling, and chickens were challenged with ...
Patricia C, Allen, Mark C, Jenkins, Katarzyna B, Miska   +2 more
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Coccidian Merozoite Transcriptome Analysis from Eimeria maxima in Comparison to Eimeria tenella and Eimeria acervulina

Journal of Parasitology, 2010
With the Eimeria spp. populations that infect chickens used as a model for coccidian biology, we aimed to survey the transcriptome of Eimeria maxima and contrast it to the 2 other Eimeria spp. for which transcriptome data are available, i.e., Eimeria tenella and Eimeria acervulina .
Ryan S, Schwarz, Raymond H, Fetterer, George H, Rosenberg, Katarzyna B, Miska   +3 more
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Differing Susceptibilities ofEimeria acervulina,Eimeria maxima, andEimeria tenellaOocysts to Desiccation

Journal of Parasitology, 2013
Outbreaks of avian coccidiosis may occur when susceptible chickens are raised on litter containing viable Eimeria oocysts. The purpose of this study was to compare the relative sensitivities of Eimeria acervulina, Eimeria maxima, and Eimeria tenella oocysts to dessication. Sporulated E. acervulina, E. maxima, or E.
Mark C, Jenkins, Carolyn, Parker, Celia, O'Brien, Katarzyna, Miska, Raymond, Fetterer   +4 more
openaire   +2 more sources