Bacterial pathogens and factors associated with Salmonella contamination in hybrid red tilapia(Oreochromis spp.)cultivated in a cage culture system

作     者：Varangkana Thaotumpitak Jarukorn Sripradite Edward R.Atwill Surapun Tepaamorndech Saharuetai Jeamsripong Varangkana Thaotumpitak;Jarukorn Sripradite;Edward R.Atwill;Surapun Tepaamomndech;Saharuetai Jeamsripong

作者机构：Research Unit in Microbial Food Safety and Antimicrobial ResistanceDepartment of Veterinary Public HealthFaculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand Department of Social and Applied ScienceCollege of Industrial TechnologyKing Mongkut's University of Technology North BangkokBangkokThailand Department of Population Health and ReproductionSchool of Veterinary MedicineUniversity of CaliforniaDavisDavisCAUSA Functional Ingredients and Food Innovation Research GroupNational Center for Genetic Engineering and Biotechnology(BIOTEC)Pathum ThaniThailand Department of MicrobiologyFaculty of MedicineChulalongkorn UniversityKing Chulalongkorn Memorial HospitalBangkokThailanc 

出 版 物：《Food Quality and Safety》 (食品品质与安全研究（英文版）)

年 卷 期：2022年第6卷第3期

页      面：404-415页

核心收录：

学科分类：1004[医学-公共卫生与预防医学(可授医学、理学学位)] 100403[医学-营养与食品卫生学] 10[医学] 

基　　金：supported by the University of California,Davis,USA (A19-4577-S001) partially funded by the Faculty of Veterinary Science,Chulalongkorn University,Thailand (RG17/2559) the 90th Anniversary of Chulalongkorn University fund (Ratchadaphiseksomphot Endowment Fund) supported by the National Research Council of Thailand (NRCT5-RGJ63001-017) 

主　　题：Aeromonas spp grazing duck Salmonella spp tilapia Vibrio spp 

摘      要：Microbial food safety in cultured tilapia remains a challenge to public health worldwide,due in part to intensive aquaculture leading to poor water quality and high organic matter *** study aimed to determine the prevalence of indicator and potential pathogenic bacteria in hybrid red tilapia(Oreochromis spp.)and their cultivation water and to identify environmental parameters and other bacterial contaminants associated with Salmonella contamination.A total of 120 fish were sampled,which were partitioned into fish carcasses(n=120),muscle(n=120),intestine(n=120),liverandkidney(n=120),and cultivationwater(n=120)from three commercial farms in westernThailand from October2019 to November *** prevalence of fecal coliforms and Escherichia coli(***)in these 600 samples was 74.8%and 56.7%,*** prevalence of Salmonella,Vibrio cholerae(***),Aeromonas hydrophila,and Vibrio vulnificus(***)was 23.0%,17.5%,2.5%,and 1.7%,*** of the samples tested positive for Streptococcus *** water exhibited a high prevalence for Salmonella(58.3%).Among fish samples,Salmonella had the highest prevalence at 14.1%,which was mainly from fish *** was a significant association of Salmonella with the presence of fecal coliforms,***,***,and *** predominant serovars of Salmonella included Saintpaul,Neukoelln,Escanaba,and *** ducks that were raised in proximity to these cultured tilapia shared the same isolates of Salmonella based on the similarity of their rep-PCR DNA fingerprints,suggesting that ducks may function as either a biological reservoir for tilapia or at minimum participate in the environmental replication of this strain of *** together,the results suggest that the environment used for tilapia aquaculture may be contaminated with pathogenic bacteria;therefore,food safety precautions are needed during processing,transportation,cooking,and consumption.