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Etiology and pathogenesis of necrotic enteritis
Sporulated oocysts ofEimeriaacervulina were administered orally to cage-housed broilers at a dose of 3.5×105 resulted in mild subclinical coccidiosis.Clostridiumperfringens incorporated in feed at aExpand
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Immunologic effects of low levels of ochratoxin A in ovo: utilization of a chicken embryo model.
Ochratoxin A (OA) was administered to 13-day-old chicken embryos via the chorioallantoic membrane. The 7-day LD50 value (day 20 incubation) of OA was calculated at 7.9 micrograms of OA.Expand
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Immunogenicity of an Escherichia coli multivalent pilus vaccine in chickens.
Immunogenicity of an oil-emulsified Escherichia coli multivalent pilus vaccine was evaluated in 4-week-old chickens. The vaccine contained 180 micrograms of pilus protein from each of serotypes O1Expand
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Adhesin-receptor interactions mediating the attachment of pathogenic Escherichia coli to chicken tracheal epithelium.
Specific adherence of pathogenic Escherichia coli (serotypes O1, O2, and O78) to chicken tracheal epithelium was investigated using adherence-inhibition procedures. The role of pilus as adhesin wasExpand
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Immunogenic potency of an oil-emulsified Escherichia coli bacterin.
Immunogenicity of an oil-emulsified Escherichia coli (O1:K1) bacterin with an aqueous-phase-to-oil-phase ratio of 1:4 was evaluated in chickens. Chickens were vaccinated subcutaneously with 0.5 ml ofExpand
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Immunogenicity of an Escherichia coli (serotype O1) pili vaccine in chickens.
Immunogenicity of an oil-emulsified Escherichia coli (serotype O1) pili vaccine was evaluated in chickens. Chickens were vaccinated with 116 micrograms or 29 micrograms of pili protein and challengedExpand
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Immunogenicity of an oil-emulsified Escherichia coli bacterin against heterologous challenge.
Immunogenicity of an oil-emulsified Escherichia coli bacterin against heterologous challenge was investigated. In Expts. 1 and 2, chickens were vaccinated with E. coli serotype O1 bacterin andExpand
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