Distribution of Fluoroquinolone-Resistant Escherichia coli in Parent Flocks Treated with Fluoroquinolones on Chick Stage and their Broiler Offspring.

IF 1.8 4区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Journal of Poultry Science Pub Date : 2024-04-27 eCollection Date: 2024-01-01 DOI:10.2141/jpsa.2024013
Takeshi Kawasaki
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引用次数: 0

Abstract

This study investigated the distribution of ofloxacin-resistant Escherichia coli (OFXR-EC) in broiler parent flocks (PS) treated with ofloxacin for 5 days from the time the chicks arrived at the poultry house, and their broiler offspring. OFXR-EC was detected in 22.95% of neonatal parent stock chicks (PSN) arriving at the poultry house. The detection rate of OFXR-EC in PS rearing was 72.49%, which was significantly higher than that detected in PSN. In addition, the detection rate of OFXR-EC was significantly lower in neonatal chicks of their offspring broilers (CSN) at 7.06% than that of PS, but was 24.62% in offspring broiler flocks (CS) at approximately 6 weeks of age. The OFXR-EC detection rate was significantly higher in CS than that in CSN, even though no therapeutic antimicrobials, including ofloxacin, were used from CSN to CS. In addition, the proportions of OFXR-ECs in E. coli isolated from samples in which OFXR-ECs were detected were 63.85% for PSN, 10.52% for PS, 62.00% for CSN, and 8.25% for CS. There was little difference in the composition ratio of OFXR-EC between PSN and CSN, or between PS and CS.

在雏鸡阶段使用过氟喹诺酮类药物的母鸡群及其肉鸡后代中耐药大肠埃希氏菌的分布。
本研究调查了耐氧氟沙星大肠杆菌(OFXR-EC)在从雏鸡到达鸡舍开始用氧氟沙星治疗 5 天的肉鸡父母代鸡群(PS)及其肉鸡后代中的分布情况。在抵达鸡舍的新生父母代雏鸡(PSN)中,有 22.95% 检测到 OFXR-EC。在育雏阶段,OFXR-EC 的检出率为 72.49%,明显高于在育雏阶段的检出率。此外,后代肉鸡(CSN)新生雏鸡的 OFXR-EC 检出率为 7.06%,明显低于 PS,但在约 6 周龄的后代肉鸡群(CS)中,OFXR-EC 的检出率为 24.62%。尽管从 CSN 到 CS 期间没有使用包括氧氟沙星在内的治疗性抗菌药,但 CS 的 OFXR-EC 检出率明显高于 CSN。此外,从检测到 OFXR-ECs 的样本中分离出的大肠杆菌中,OFXR-ECs 的比例分别为:PSN 63.85%、PS 10.52%、CSN 62.00%、CS 8.25%。PSN和CSN以及PS和CS之间的OFXR-EC成分比例差异不大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Poultry Science
Journal of Poultry Science AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
2.80
自引率
13.30%
发文量
26
审稿时长
12 months
期刊介绍: The Journal of Poultry Science will publish original reports and reviews which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: breeding and genetics, nutrition and feeds, physiology, reproduction, immunology, behavior, environmental science, management and housing welfare, processing and products, and health in poultry. Submission of original articles to the Journal is open to all poultry researchers. The review articles are invited papers written by international outstanding researchers. Articles will be published in English, American style.
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