Results 141 to 150 of about 11,341 (182)
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Eimeria praecox infection ameliorates effects of Eimeria maxima infection in chickens
Veterinary Parasitology, 2008The 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 +4 more
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The reproduction of Eimeria flavescens and Eimeria intestinalis in suckling rabbits
Parasitology Research, 2007Suckling rabbits from six litters were orally inoculated at various ages with oocysts of Eimeria flavescens or Eimeria intestinalis. The total number of oocysts in the ceca served to estimate parasite reproduction. The rabbits at 14 and 16 days old remained uninfected, and in 19-day-old animals, low or no oocyst shedding was observed.
Michal, Pakandl, Lenka, Hlásková
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Identification and characterization of an Eimeria-conserved protein in Eimeria tenella
Parasitology Research, 2013The precocious lines of Eimeria spp. have unique phenotypes. However, the genetic basis of the precocious phenotype is still poorly understood. The identification of Eimeria genes controlling the precocious phenotype is of immense importance in the fight against coccidiosis.
Hui, Dong +8 more
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Characterization and localization of an Eimeria-specific protein in Eimeria maxima
Parasitology Research, 2013A 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 +5 more
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Superoxide dismutases in Eimeria tenella
Molecular and Biochemical Parasitology, 1991Unsporulated oocysts of Eimeria tenella have high superoxide dismutase (SOD: superoxide:superoxide oxidoreductase, EC 1.15.1.1.) activity and contain several electrophoretically distinct forms of the enzyme, including two forms of Cu/Zn-containing SOD, two forms of Fe-SOD and two forms of Mn-SOD. SOD activity remains high during 12 h of sporulation but
W P, Michalski, S J, Prowse
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Detection and assessment of sublethal infections of Eimeria tenella and Eimeria necatrix
Experimental Parasitology, 1960Abstract 1. 1. The estimation of the packed red-cell volume by the micro-hematocrit technique proved to be a convenient method of measuring anemia in chickens infected with E. tenella or E. necatrix . 2. 2. Hematocrit measurements were more sensitive to the effects of infection with E. tenella than observations on the growth rate. 3.
L P, JOYNER, S F, DAVIES
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Attenuation of Eimeria species: further characterisation of two lines of Eimeria mitis
Research in Veterinary Science, 1985The immunogenicity of a 'precocious' and attenuated line (HP10) of Eimeria mitis was studied and the stability of attenuation of two precocious lines was compared with that of an embryo-adapted line. Chicks housed in wire-floored cages and given 1 X 10(5) oocysts of the HP10 line were protected against challenge with the parent Houghton strain and two ...
V, McDonald, M W, Shirley, H D, Chapman
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Avian diseases, 1982
After 6 to 8 months of storage, cultures of sporulated Eimeria acervulina and E. tenella oocysts ahd a marked drop in the number of sporocysts that survived grinding, sporozoites that survived after excystation, and sporozoites that penetrated chick kidney cells in vitro. The rate of excystation was unaffected by storage of up to one year.
M D, Ruff, D J, Doran, G C, Wilkins
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After 6 to 8 months of storage, cultures of sporulated Eimeria acervulina and E. tenella oocysts ahd a marked drop in the number of sporocysts that survived grinding, sporozoites that survived after excystation, and sporozoites that penetrated chick kidney cells in vitro. The rate of excystation was unaffected by storage of up to one year.
M D, Ruff, D J, Doran, G C, Wilkins
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Nature, 1970
KNOWLEDGE of the early development of Eimeria stiedae, before the appearance of trophozoites in the liver of its rabbit host, is remarkably scanty. After initial penetration of the duodenal epithelium by the sporozoites, the earliest observation of trophozoite formation has been 72 h after infection.
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KNOWLEDGE of the early development of Eimeria stiedae, before the appearance of trophozoites in the liver of its rabbit host, is remarkably scanty. After initial penetration of the duodenal epithelium by the sporozoites, the earliest observation of trophozoite formation has been 72 h after infection.
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Studies on Eimeria mivati in chickens and a comparison with Eimeria acervulina
Journal of Comparative Pathology, 1967Abstract Eimeria mivati was isolated from fowls in Britain. Heavy experimental infections caused some morbidity and had a marked effect on gain in body weight. Evidence is presented which suggests that the breed or strain of the host influences the degree of pathogenicity.
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