Abstract
The period during which specific pathogen free hens, infected by direct introduction into the crop of either 10(3), 10(6) or 10(8) cells of Salmonella enteritidis PT4, excreted the organism in faeces was closely related to the size of the inoculum, with the birds excreting for mean periods of 3.4, 16.4 and 36.8 days, respectively. The production of either IgG or IgM was also dose related with the birds which received 10(3) cells having lower antibody levels than those in the other two groups. In contrast, there was no relationship between the contamination of egg contents and either antibody status, faecal excretion, or the dose administered.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antibodies, Bacterial / analysis*
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Chickens / microbiology*
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Eggs / microbiology
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Enzyme-Linked Immunosorbent Assay / veterinary
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Feces / microbiology
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Female
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Immunoglobulin G / analysis
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Immunoglobulin M / analysis
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Poultry Diseases / immunology
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Poultry Diseases / microbiology*
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Salmonella Infections, Animal / immunology
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Salmonella Infections, Animal / microbiology*
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Salmonella enteritidis* / immunology
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Salmonella enteritidis* / isolation & purification
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Species Specificity
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Specific Pathogen-Free Organisms
Substances
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Antibodies, Bacterial
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Immunoglobulin G
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Immunoglobulin M