海南文昌鸡禽致病性大肠杆菌流行病学调查及耐药性分析

IF 2.5 2区农林科学 Q1 VETERINARY SCIENCES Avian Pathology Pub Date : 2025-01-13 DOI:10.1080/03079457.2024.2447296

Rui Tian, Feng Xie, Xin Wang, Lei Dai, Jinxiu Wang, Yuqing Liu, Chengxin Zhao, Qingxia Li, Wei Zhang

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引用次数: 0

摘要

禽致病性大肠杆菌（APEC）是世界范围内禽类发病的主要原因之一，严重降低了蛋鸡的产蛋量和胚胎孵化率。海南文昌鸡是中国海南重要的家禽品种，其文化长期受到APEC的影响。为了探讨文昌鸡在养殖过程中孵化率低、雏鸡虚弱的原因，本研究从海南地区5个文昌鸡大型养殖场采集的591份鸡胚样本中分离出130株APEC菌株。对海南文昌鸡胚中分离的APEC菌株进行血清型、耐药性、基因组及进化关系分析。胚胎APEC主要流行血清型为O8型，分离株对抗生素具有高度耐药和多重耐药。对14种抗生素耐药的占19.2%，耐药率大于73%。从胚胎分离的APEC菌株携带的抗性基因数量稳定在53个。泛基因组分析结果表明，海南文昌鸡胚APEC分离株基因组可集中在2个进化聚类中，且同一血清型分离株具有极其密切的进化关系。本研究是首次从文昌鸡胚中大规模分离和分析APEC，可为海南文昌鸡的APEC防控和抗生素使用提供参考。

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Epidemiological investigation and drug resistance analysis of avian pathogenic Escherichia coli (APEC) of Wenchang chickens in Hainan, China.

Research highlights: Type O8 is the most prevalent serotype of APEC isolated from Wenchang chicken embryos (Hainan, China).The isolates were more than 90% resistant to erythromycin, amoxicillin, ampicillin, and tetracycline.19.2% of the isolates were multi-resistant to more than 14 antibiotics.APEC of the same serotype isolated from Hainan Wenchang embryos have close relationships in the evolutionary tree of the core genome.

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来源期刊

Avian Pathology 农林科学-兽医学

CiteScore

4.50

自引率

10.70%

发文量

审稿时长

1 months

期刊介绍： Avian Pathology is the official journal of the World Veterinary Poultry Association and, since its first publication in 1972, has been a leading international journal for poultry disease scientists. It publishes material relevant to the entire field of infectious and non-infectious diseases of poultry and other birds. Accepted manuscripts will contribute novel data of interest to an international readership and will add significantly to knowledge and understanding of diseases, old or new. Subject areas include pathology, diagnosis, detection and characterisation of pathogens, infections of possible zoonotic importance, epidemiology, innate and immune responses, vaccines, gene sequences, genetics in relation to disease and physiological and biochemical changes in response to disease. First and subsequent reports of well-recognized diseases within a country are not acceptable unless they also include substantial new information about the disease or pathogen. Manuscripts on wild or pet birds should describe disease or pathogens in a significant number of birds, recognizing/suggesting serious potential impact on that species or that the disease or pathogen is of demonstrable relevance to poultry. Manuscripts on food-borne microorganisms acquired during or after processing, and those that catalogue the occurrence or properties of microorganisms, are unlikely to be considered for publication in the absence of data linking them to avian disease.