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Relationship between chicken cellular immunity and endotoxin levels in dust from chicken housing environments
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  • Relationship between chicken cellular immunity and endotoxin levels in dust from chicken housing environments
저자명
Katharine Roque, Kyung-Min Shin, Ji-Hoon Jo, Hyoung-Ah Kim, Yong Heo
간행물명
Journal of Veterinary ScienceKCI,SCIE,SCOPUS
권/호정보
2015년|16권 2호(통권58호)|pp.173-177 (5 pages)
발행정보
대한수의학회|한국
파일정보
정기간행물|ENG|
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영문초록

Hazardous biochemical agents in animal husbandry indoor environments are known to promote the occurrence of various illnesses among workers and animals. The relationship between endotoxin levels in dust collected from chicken farms and various immunological markers was investigated. Peripheral blood was obtained from 20 broiler chickens and 20 laying hens from four different chicken farms in Korea. Concentrations of total or respirable dust in the inside the chicken farm buildings were measured using a polyvinyl chloride membrane filter and mini volume sampler. Endotoxin levels in the dust were determined by the Limulus Amebocyte Lysate Kinetic method. Interferon-γ production by peripheral blood mononuclear cells stimulated with concanavalin A was significantly lower in broilers or layers from the farms with higher endotoxin concentrations than the chickens from the farms with lower endotoxin levels. An opposite pattern was observed for plasma cortisol concentrations with higher cortisol levels found in chickens from the farms with higher endotoxin levels. When peripheral lymphocytes were examined, the percentage of CD3Ia B cells was lower in layers from farms with higher endotoxin levels than those from locations with lower endotoxin levels. Overall, these results suggest a probable negative association between dust endotoxin levels and cell-mediated immunity in chickens.

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