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Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China

The present study was designed to explore the Salmonella prevalence and antimicrobial resistance characteristics in the context of chick mortality at hatching in China. Between December 2015 and August 2017, 1,288 dead-in-shell chicken embryos were collected from four breeder chicken hatcheries in T...

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Autores principales: Zhao, Xiaonan, Ju, Zijing, Wang, Guisheng, Yang, Jie, Wang, Fangkun, Tang, Hui, Zhao, Xiaomin, Sun, Shuhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8007780/
https://www.ncbi.nlm.nih.gov/pubmed/33796577
http://dx.doi.org/10.3389/fvets.2021.581946
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author Zhao, Xiaonan
Ju, Zijing
Wang, Guisheng
Yang, Jie
Wang, Fangkun
Tang, Hui
Zhao, Xiaomin
Sun, Shuhong
author_facet Zhao, Xiaonan
Ju, Zijing
Wang, Guisheng
Yang, Jie
Wang, Fangkun
Tang, Hui
Zhao, Xiaomin
Sun, Shuhong
author_sort Zhao, Xiaonan
collection PubMed
description The present study was designed to explore the Salmonella prevalence and antimicrobial resistance characteristics in the context of chick mortality at hatching in China. Between December 2015 and August 2017, 1,288 dead-in-shell chicken embryos were collected from four breeder chicken hatcheries in Tai'an, Rizhao, Jining, and Heze, China. Salmonella isolates were successfully recovered from 6.7% of these embryos (86/1,288) and were evaluated for serotype, antimicrobial susceptibility, Class 1 integron prevalence, antimicrobial resistance gene expression, and multilocus sequence typing (MLST). Salmonella Thompson (37.2%), and Salmonella Infantis (32.6%) were the two most prevalent isolates in these chicken embryos, and 66.3% of isolates exhibited robust ampicillin resistance, while 55.8% of isolates exhibited multi-drug resistance (MDR). The majority of isolates harbored the bla(TEM) gene (74.4%), with the qnrS gene also being highly prevalent (50.0%). In contrast, just 27.9% of these isolates carried Class 1 integrons. These 86 isolates were separated into four sequence types (STs), whereby ST26 (32.2%) was the most prevalent. Overall, these results suggested that Salmonella infections may be an important cause of chicken embryo mortality in China, and that efforts to support the appropriate use of antibiotics in managing poultry populations are essential.
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spelling pubmed-80077802021-03-31 Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China Zhao, Xiaonan Ju, Zijing Wang, Guisheng Yang, Jie Wang, Fangkun Tang, Hui Zhao, Xiaomin Sun, Shuhong Front Vet Sci Veterinary Science The present study was designed to explore the Salmonella prevalence and antimicrobial resistance characteristics in the context of chick mortality at hatching in China. Between December 2015 and August 2017, 1,288 dead-in-shell chicken embryos were collected from four breeder chicken hatcheries in Tai'an, Rizhao, Jining, and Heze, China. Salmonella isolates were successfully recovered from 6.7% of these embryos (86/1,288) and were evaluated for serotype, antimicrobial susceptibility, Class 1 integron prevalence, antimicrobial resistance gene expression, and multilocus sequence typing (MLST). Salmonella Thompson (37.2%), and Salmonella Infantis (32.6%) were the two most prevalent isolates in these chicken embryos, and 66.3% of isolates exhibited robust ampicillin resistance, while 55.8% of isolates exhibited multi-drug resistance (MDR). The majority of isolates harbored the bla(TEM) gene (74.4%), with the qnrS gene also being highly prevalent (50.0%). In contrast, just 27.9% of these isolates carried Class 1 integrons. These 86 isolates were separated into four sequence types (STs), whereby ST26 (32.2%) was the most prevalent. Overall, these results suggested that Salmonella infections may be an important cause of chicken embryo mortality in China, and that efforts to support the appropriate use of antibiotics in managing poultry populations are essential. Frontiers Media S.A. 2021-03-16 /pmc/articles/PMC8007780/ /pubmed/33796577 http://dx.doi.org/10.3389/fvets.2021.581946 Text en Copyright © 2021 Zhao, Ju, Wang, Yang, Wang, Tang, Zhao and Sun. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Veterinary Science
Zhao, Xiaonan
Ju, Zijing
Wang, Guisheng
Yang, Jie
Wang, Fangkun
Tang, Hui
Zhao, Xiaomin
Sun, Shuhong
Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title_full Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title_fullStr Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title_full_unstemmed Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title_short Prevalence and Antimicrobial Resistance of Salmonella Isolated From Dead-in-Shell Chicken Embryos in Shandong, China
title_sort prevalence and antimicrobial resistance of salmonella isolated from dead-in-shell chicken embryos in shandong, china
topic Veterinary Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8007780/
https://www.ncbi.nlm.nih.gov/pubmed/33796577
http://dx.doi.org/10.3389/fvets.2021.581946
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