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貉源绿脓杆菌分离鉴定

2021-12-23王建军,莫玲,郭广君,韩强,姚春阳,王玉茂

中国动物保健 2021年12期

王建军,莫玲,郭广君,韩强,姚春阳,王玉茂

摘要:为确诊引起山东省潍坊市某貉子养殖场的主要细菌性疾病,对该养殖户送检的病死貉子进行剖检,根据病貉的临床症状、病理剖检变化及其对分离纯化的细菌进行形态特征观察、生化试验、细菌16S rDNA PCR鉴定、药物敏感试验,初步确诊为绿脓杆菌感染。药物敏感试验结果表明,分离菌株对恩诺沙星、硫酸粘杆菌素、氟苯尼考中敏,对头孢噻呋、庆大霉素、替米考星、多西环素、林可霉素、阿莫西林耐药。

关键词:貉;绿脓杆菌;药敏试验;PCR鉴定

Isolation and PCR Identification of Pseudomonas Aeruginosa from Raccoon

Wang Jianjun1, Mo Ling1, Guo Guangjun1, Han Qiang2, Yao Chunyang1, Wang Yumao1

(1.Shandong Binzhou Animal Science and Veterinary Medicine Academy; 2. Shandong LVDU Bio-science & Technology Co., Ltd, Binzhou, Shandong, 256600)

Abstract: In order to diagnose the main bacterial diseases caused by a raccoon dog farm in Weifang City, Shandong Province, the dead raccoon dogs sent by the farmer for examination were dissected. According to the clinical symptoms and pathological changes of the sick raccoon dogs and the morphological characteristics observation, biochemical test, bacterial 16S rDNA PCR identification and drug sensitivity test of the isolated and purified bacteria, it was preliminarily diagnosed as Pseudomonas aeruginosa infection. The results of drug sensitivity test showed that the isolated strains were moderately sensitive to enrofloxacin, Colistin sulfate and florfenicol, but resistant to ceftiofur, gentamicin, timicosin, doxycycline, lincomycin and amoxicillin.

Keywords: Raccoon; Pseudomonas aeruginosa; drug sensitivity test; PCR identification

綠脓杆菌(pseudomonas aeruginosa),又称铜绿假单胞菌,1882年首先由Gerssard从伤口脓液分离得到[1],该菌广泛存在于自然界中,是一种临床上较为常见的人畜共患条件性致病[2],主要经呼吸道、消化道和接触等多种途径易引起多种动物及人原发或继发或混合感染[3],对多种畜禽均有不同程度的危害[4],可导致水貂、狐、貉等毛皮动物出血性肺炎或经产道感染导致狐狸、貉子的内膜炎,经创伤感染引起化脓。该病常发生于温暖、潮湿的季节,在我国毛皮动物养殖区域广泛流行,其特点是发病急、病程短、死亡快,多呈地方性暴发性流行[5],给毛皮动物养殖业造成了较大的经济损失[6]。

山东省潍坊市某貉子养殖合作社现有养殖量为1,500只,在3月龄出现咳嗽、流鼻涕、个别貉口、鼻有血液流出的疾病,发展迅速,严重时1d出现100余只发病,每天出现死亡,严重时日死亡60余只。死亡率在10%~30%左右。给养殖户造成了严重的经济损失。

对来诊病死貉子进行病理剖检,病理变化为肺脏充血、出血,严重的有出血斑,肺脏有明显的结节状突起,切面流出血样性泡沫液体。……

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