Prevalence and persistence of Salmonella in broiler chicken flocks
Prevalence and persistence of Salmonella in broiler chicken flocks
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DOI：
10.1292/jvms.61.255
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发表时间：
1999-03-01
影响因子：
1.2
通讯作者：
Ogawa, M
中科院分区：
文献类型：
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作者：
Limawongpranee, S;Hayashidani, H;Ogawa, M
对来自12个养殖场的2,345只肉鸡的盲肠内容物进行了沙门氏菌的检测，以了解鸡群中沙门氏菌的实际感染情况。检出沙门氏菌336份，占14.3%。从这些分离株中鉴定出8个血清型。336株沙门氏菌中，Blockley沙门氏菌242株(72.0%)，Hadar沙门氏菌60株(17.9%)，Bredeney沙门氏菌15株(4.5%)，施瓦辛格氏沙门氏菌9株(2.7%)，阿纳图姆沙门氏菌4株(1.2%)，肠炎沙门氏菌3株(0.9%)，俄亥俄州沙门氏菌2株(0.6%)，利文斯通沙门氏菌1株(0.3%)。在同一农场的鸡只中，多次发现相同的沙门氏菌血清型。从孵化场收集的破碎蛋壳样品中检出了鼠伤寒沙门氏菌和肠炎沙门氏菌。质粒谱分析显示，布洛克利沙门氏菌有11种模式，哈达沙门氏菌有7种模式。在第一次分离后一年多的时间里，从同一养殖场重复分离到相同质粒谱的菌株。
Cecal contents of 2,345 broiler chickens consisting of 28 flocks originated from 12 farms were examined for the prevalence of Salmonella to know the actual status of infection with Salmonella in the chicken flocks. Salmonella was isolated from 336 (14.3%) samples. From these isolates, eight serovars were identified. Of the 336 Salmonella isolates, 242 (72.0%) were serotyped as S. Blockley, 60 (17.9%) S. Hadar, 15 (4.5%) S. Bredeney, nine (2.7%) S. Schwarzengrund, four (1.2%) S. Anatum, three (0.9%) S. Enteritidis, two (0.6%) S. Ohio, and one (0.3%) S. Livingstone. The same serovars of Salmonella were repeatedly found in the chickens from the same farms. S. Typhimurium and S. Enteritidis were detected in pooled broken eggshell samples collected from the hatchery. Analysis of plasmid profiles revealed 11 patterns of S. Blockley and seven patterns of S. Hadar. Strains of the same plasmid profiles of S. Blockley were isolated repeatedly from the same farm over one year after the first isolation.