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KMID : 0359320160560010009
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Korean Journal of Veterinary Research
2016 Volume.56 No. 1 p.9 ~ p.14
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Effect of a mixture of Galla rhois and Cinnamomum cassia extracts on susceptibility to the colonization of Campylobacter jejuni in broiler chickens
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Cho Byung-Wook
Lee Soo-Mi
Cha Chun-Nam
Yoo Chang-Yeol
Son Song-Ee
Kim Suk
Lee Hu-Jang
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Abstract
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The present study evaluated the effects of a mixture of Galla rhois and Cinnamomum cassia extracts (GCE) (1 : 1, w/w) on susceptibility to the colonization of Campylobacter (C.) jejuni in broilers. Eighty two-week-old broilers (n = 20 per group) were used to estimate the efficacy of GCE against C. jejuni infection via drinking water. Antibacterial activity testing revealed that the minimum bactericidal concentration of GCE against C. jejuni was 2.5 mg/mL. Broilers challenged with C. jejuni were administered 0.0 (Non-GCE), 2.5 (GCE-2.5), 5.0 (GCE-5.0) and 10.0 g/L (GCE-10) GCE for 7 days, and the cecal contents were collected from five broilers per group on the 1st, 3rd, 5th, and 7th day post-treatment. On day 3 post-administration, the number of C. jejuni in GCE-5.0 (p < 0.05) and GCE-10 (p < 0.01) was significantly decreased relative to Non-GCE, while on day 7 those in all GCE-treated groups were significantly decreased compared to the Non-GCE group (p < 0.001). Hematological and blood biochemical analysis revealed no significant differences in parameters between the Non-GCE and GCE-treated groups. Based on the results of the present study, GCE was identified as a safe and alternative candidate to suppress C. jejuni colonization in broilers.
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KEYWORD
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Campylobacter jejuni, Cinnamomum cassia, Galla rhois, broiler chicken
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