Prevalence and risk factors for Salmonella spp. contamination of slaughtered chickens in Taiwan

C-H Lin; P.J. Adams; J-F Huang; Y-F Sun; J-H Lin; I.D. Robertson

doi:10.1016/j.prevetmed.2021.105476

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Prevalence and risk factors for Salmonella spp. contamination of slaughtered chickens in Taiwan

Journal article

Peer reviewed

Prevalence and risk factors for Salmonella spp. contamination of slaughtered chickens in Taiwan

C-H Lin, P.J. Adams, J-F Huang, Y-F Sun, J-H Lin and I.D. Robertson

Preventive Veterinary Medicine, Vol.196, Article 105476

2021

DOI: https://doi.org/10.1016/j.prevetmed.2021.105476

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Abstract

The present study was designed to estimate the prevalence of Salmonella contamination in Taiwanese broilers at slaughter and to identify risk factors associated with the presence of Salmonella in processed batches of broilers. Carcass rinse samples from 362 batches of broilers were collected from 45 chicken abattoirs in Taiwan between February 2013 and November 2014. Univariate analyses and multivariable logistic regression analyses were conducted to identify putative risk factors for contamination. Salmonella was detected in 32.6 % (95 % CI: 30.4–34.8) of individual broilers and 56.4 % (95 % CI: 51.1–61.5) of the sampled batches. The multivariable logistic regression model identified season (July to November) (OR = 1.95; 95 % CI: 1.2–3.2) as increasing the risk of infection. Abattoirs in the southern region (Taichung and Kaohsiung) (OR = 0.45; 95 % CI: 0.3−0.8); batches scalded for > 90 s (OR = 0.2; 95 % CI: 0.1−0.3) and batches of commercial white broilers (BR) (OR = 0.21; 95 % CI: 0.1−0.4) all had a decreased risk of contamination compared to abattoirs from the northern region, scalding < 90 s and Taiwan native chickens (TNC), respectively. This study highlights the influence of environmental conditions and poultry breed on the risk of Salmonella contamination of chickens during slaughter.

Details

Title: Prevalence and risk factors for Salmonella spp. contamination of slaughtered chickens in Taiwan
Authors/Creators: C-H Lin (Author/Creator) - Council of Agriculture
P.J. Adams (Author/Creator) - School of Veterinary Medicine, Murdoch University, Murdoch, Western Australia 6150, Australia; Department of Primary Industries and Regional Development, Western Australia 6151, Australia.
J-F Huang (Author/Creator) - Agricultural Technology Research Institute
Y-F Sun (Author/Creator) - Agricultural Technology Research Institute
J-H Lin (Author/Creator) - Agricultural Technology Research Institute
I.D. Robertson (Author/Creator) - Murdoch University
Publication Details: Preventive Veterinary Medicine, Vol.196, Article 105476
Publisher: Elsevier
Identifiers: 991005544177607891
Copyright: © 2021 Elsevier B.V.
Murdoch Affiliation: School of Veterinary Medicine
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.42 Bacteriology; 1.42.376 Salmonella and Campylobacter
Web Of Science research areas: Veterinary Sciences
ESI research areas: Plant & Animal Science