Prevalence and Persistence of Salmonella in Broiler Chicken Flocks

Journal of Veterinary Medical Science

Masuo Ogawa²  Kaori Ono²  Ken-ichi Kaneko²  Hideki Hayashidani²  Chuzo Hirota¹  Alexandre Tomomitsu Okatani²  Suvit Limawongpranee² 

[1] Nihon Sun Farm Co., Ltd., 120 Yata, Ogawa-machi, Tochigi 324-0512, Japan;Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan

关键词: broiler;    hatchery;    poultry farm;    prevalence;    Salmonella;   

DOI  :  10.1292/jvms.61.255

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(29)Cited-By(17)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.

【 授权许可】

Unknown