共查询到19条相似文献，搜索用时 468 毫秒
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从307份鸡盲肠内容物样品中分离到47株空肠弯曲杆菌,并测定这些空肠弯曲杆菌耐药性,结果显示对喹诺酮类药(环丙沙星)耐药性为31.9%;对氨苄青霉素,克林霉素和红霉素耐药性较高,分别达到85.1%、83.0%和83.0%;而对痢特灵和庆大霉素则较为敏感,敏感度分别为85.1%和74.5%。有89.4%的菌株显示多重耐药性。利用MAMAPCR技术,对获得的47株空肠弯曲杆菌进行检测,结果显示对环丙沙星耐药的15株空肠弯曲杆菌均检测出其在gyrA基因257位发生点突变,30株对喹诺酮药物敏感的菌株均未检出。另外2株对环丙沙星耐药的菌株,有1株检测出点突变。 相似文献
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猪、鸡间空肠弯曲杆菌感染分布状况的调查研究 总被引：1，自引：0，他引：1
目的:对入沪28个产地(河南开封、山东青岛、江苏南通、浙江金华、上海奉贤等地)的鸡、猪进行了空肠弯曲杆菌流行分布调查,了解空肠弯曲杆菌在不同动物种间的分布状况。方法:以空肠弯曲杆菌特异性的VS1基因为扩增目标片段,对2005～2007年间在上海市三家家禽市场和五家生猪屠宰场采集的2234(鸡1015份、猪1219份)盲肠内容物样品进行PCR检测。结果:鸡盲肠内容物检出空肠弯曲杆菌阳性的样品288份,平均阳性率为28.4%,猪盲肠内容物检出空肠弯曲杆菌阳性的样品420份,平均阳性率为34.4%。结论:28个产地的鸡、猪均有空肠弯曲杆菌感染,不同产地、种属其感染率和发病情况不同,经统计学分析显示,猪的感染阳性率显著高于鸡,上海市内(奉贤等地)来源的畜禽感染阳性率显著低于浙江金华、江苏海门、江苏张家港和江苏大丰等外省市地区。 相似文献
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《中国家禽》2017,(18)
为了解江苏地区鸡源弯曲杆菌的流行和耐药状况,采集养殖场及农贸市场鸡泄殖腔棉拭子样品和超市鸡肉样品进行空肠弯曲杆菌、结肠弯曲杆菌的分离与鉴定,对分离菌株采用纸片扩散法检测其耐药情况。结果显示:泄殖腔棉拭子样品弯曲杆菌总分离率为38.68%(205/530),其中空肠弯曲杆菌和结肠弯曲杆菌阳性率分别为27.36%(145/530)和11.32%(60/530);鸡肉样品中弯曲杆菌总分离率为45.33%(68/150),其中空肠弯曲杆菌和结肠弯曲杆菌阳性率分别为30.00%(45/150)和15.33%(23/150)。所有样品空肠弯曲杆菌分离率极显著高于结肠弯曲杆菌(P0.01),就泄殖腔棉拭子样品而言,养殖场样品弯曲杆菌总分离率显著高于农贸市场样品(P0.05),泄殖腔棉拭子样品与鸡肉样品弯曲杆菌分离率无显著性差异(P0.05)。耐药检测结果显示,弯曲杆菌对9大类27种抗生素耐药率在80%以上的有6种,分别为头孢噻肟、头孢曲松、诺氟沙星、环丙沙星、甲氧苄胺嘧啶和克林霉素,所有菌株表现出多重耐药现象,耐药谱主要集中在12耐、13耐和14耐。研究表明,江苏地区鸡源弯曲杆菌流行普遍,分离菌株存在耐药现象且多重耐药情况较严重。 相似文献
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《畜牧与兽医》2016,(12):95-98
为分析并比较我国5省份屠宰场鸡胴体分离的空肠弯曲菌的耐药状况,采用琼脂稀释法测定鸡酮体空肠弯曲菌分离株对8类14组抗生素的耐药性。结果表明:72株空肠弯曲菌分离株对8类14组抗生素均有不同程度的耐药,其中对喹诺酮类、四环素类、头孢菌素类显示为高度耐药(环丙沙星98.6%、萘啶酸93.1%,四环素94.4%、多西环素90.3%,头孢他啶87.5%);对青霉素类、磺胺类显示为中等耐药(阿莫西林/克拉维酸45.8%,甲氧苄啶/磺胺甲噁唑44.4%);对大环内酯类、氨基糖苷类、林可酰胺类显示为低耐药(红霉素2.8%、阿奇霉素6.9%,庆大霉素18.1%、链霉素4.2%,克林霉素4.2%);对碳青霉烯类(美罗培南)和氯霉素均显示为全敏感。72株分离株均对4种及以上抗生素有耐药性,共产生31种耐药谱型,其中以TET-CIP-NAL-CAZ-DOX型最多,占比22.2%。各省份之间耐药状况差异不明显。说明我国5省份屠宰场从鸡酮体分离的空肠弯曲菌均有不同程度的耐药,多重耐药菌占比较高,应加强鸡场养殖环节抗生素使用的监管,防止药物滥用,保障动物和人类健康。 相似文献
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随着畜禽规模化养殖业的发展,大肠杆菌、沙门氏菌、葡萄球菌、巴氏杆菌等已成为畜禽规模化养殖场的主要病原菌。多年来,由于抗生素的不合理使用,使主要病原菌产生了严重的耐药性。1耐药性葡萄球菌对青霉素、红霉素、氟哌酸的耐药性分别为91.2%、83.4%、56.6%。大肠杆菌对土霉素的耐药性为26.1%,对痢特灵、链霉素、强力霉素、氨苄青霉素的耐药性大于50%,对阿莫西林、土霉素、新霉素、三甲氧苄氨嘧啶等耐药性达55%～89%。四川等地猪源性大肠杆菌对16种抗菌药物的耐药性由大到小依次是:林可霉素、青霉素、土霉素、阿莫西林、四环素、红霉素、吡… 相似文献
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本文对集约化肉鸡场空肠弯曲杆菌流行状况进行监测与分析。1 981份样品中,JM地区的肉鸡空肠弯曲杆菌阳性率为6.48%~7.48%,JZ地区的肉鸡空肠弯曲杆菌阳性率为9.45%~9.91%,JN地区的肉鸡空肠弯曲杆菌阳性率为14.6%~16.9%。17种抗菌药中,对36株肉鸡空肠弯曲菌分离株高度敏感的是:阿米卡星(86.1%)、链霉素(91.7%)、庆大霉素(94.4%)、卡那霉素(83.3%)、阿奇霉素(86.1%)、头孢噻肟(83.3%),另外有3种抗菌药对肉鸡空肠弯曲杆菌表现出较好的敏感性,分别是红霉素(61.1%)、氨苄西林(78.8%)、青霉素(69.4%),其它临床常用抗菌药对36株肉鸡空肠弯曲杆菌则表现出较强的耐药性。JM地区空肠弯曲杆菌分离株的耐药谱为7耐至10耐,JZ地区空肠弯曲杆菌分离株的耐药谱为8耐至12耐,JN地区空肠弯曲杆菌分离株的耐药谱为7耐至11耐。研究结果证明,不同地区肉鸡中空肠弯曲杆菌的流行和耐药状况呈现多样化。 相似文献
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为了解不同动物源肠球菌耐药性,试验选用10种常用抗生素,采用统一材料、方法(KB法)和判断标准[美国临床实验室标准化协会(CLSI)2007年版]对从5种不同动物源(人、狗、鸡、牛、猪)粪便中分离得到的肠球菌进行耐药性检测。结果表明:共分离得到肠球菌646株,包括人源肠球菌146株、狗源肠球菌138株、鸡源肠球菌128株、牛源肠球菌111株、猪源肠球菌123株;各动物源肠球菌对四环素和利福平耐受性偏高,对青霉素G、万古霉素和高浓度庆大霉素耐受性偏低,其中耐万古霉素肠球菌47株,平均耐药率为7%;各动物源肠球菌的耐药性表现为鸡源肠球菌最强,猪源肠球菌、狗源肠球菌、人源肠球菌次之,牛源肠球菌最低。说明滥用抗生素已造成人和畜禽动物肠球菌较为普遍的耐药,应引起临床及畜禽业高度重视。 相似文献
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为了解鸡源弯曲菌分离株中毒力基因携带情况和耐药现状，探讨毒力基因的存在与耐药性的关系，本试验通过PCR方法对贵州省9个市(州)禽类养殖场分离的96株弯曲菌进行毒力基因检测，采用琼脂稀释法进行药敏试验，通过分类变量的关联性分析，计算关联系数(Cramer’s V)后分析毒力基因与耐药性的相关性。结果显示，在弯曲菌分离株中携带率位于前3名的毒力基因是sodB、cheY、fur(99.0%、96.9%、96.9%),ciaB、virB11的携带率均为0;空肠弯曲菌优势毒力基因谱为flaA-cadF-cheY-cdtA-cdtB-cdtC-fur-katA-sodB,结肠弯曲菌优势毒力基因谱为flaA-cadF-cheY-fur-katA-sodB,结肠弯曲菌毒力基因谱型多于空肠弯曲菌。空肠弯曲菌和结肠弯曲菌分离株耐药率位于前3名的抗菌药均为萘啶酸(88.2%、93.5%)、四环素(85.2%、90.3%)和环丙沙星(73.5%、87.0%);结肠弯曲菌对红霉素、阿奇霉素、链霉素、氯霉素、泰利霉素和克林霉素的耐药水平高于空肠弯曲菌。红霉素与cdtC基因，阿奇霉素与cdtA、cdtB基因，环丙沙... 相似文献
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部分鸡场大肠杆菌对抗菌药物的耐药性 总被引：12，自引：0，他引：12
从江西、辽宁、广东3个省的鸡场分离到204株大肠杆菌，按NCCLs推荐的纸片扩散法测定了其对24种抗菌药物的敏感性。结果表明，分离菌对四环素的耐药性最高，为92．2％．余下依次为二氟沙星、萘啶酸、磺胺、复方新诺明、氨苄西林、阿莫西林、恩诺沙星、沙拉沙星、洛美沙星、链霉素、达氟沙星、培氟沙星、环丙沙星、诺氟沙星、氧氟沙星、氯霉素、庆大霉素、卡那霉素、头孢噻吩、奥格门丁(阿莫西林和克拉维酸钾)、阿米卡星、氟苯尼考．头孢曲松无1例耐药。 相似文献
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Antimicrobial resistance of thermophilic Campylobacter spp. isolated from cattle in Poland 总被引：1，自引：0，他引：1
Campylobacter species are among the most frequently identified bacterial causes of human gastroenteritis. Because Campylobacter spp. harbored by cattle can be transmitted to humans, in this study we investigated antimicrobial resistance of thermophilic Campylobacter isolated from cows. Our study included 150 strains of Campylobacter (143 strains of C. jejuni and 7 strains of C. coli) isolated from cows in South-Western Poland. The minimal inhibitory concentration (MIC) to ciprofloxacin, erythromycin, gentamicin and tetracycline were determined using the agar dilution methodology. All strains of C. coli were susceptible to all four drugs studied. The most frequently detected resistance of C. jejuni was to ciprofloxacin (26 strains 18.2%). Resistance to tetracycline was observed in 5 strains (3.5%). All strains of C. jejuni were susceptible to erythromycin and gentamicin. 相似文献
13.
Chuma T Hashimoto S Okamoto K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2000,62(12):1291-1295
The best combination of primers and the annealing temperature of multiplex PCR for Campylobacter jejuni, Campylobacter coli, and Campylobacter lari were examined. The multiplex PCR was able to detect type strains of the three species. All results of identification of wild strains (30 strains of C. jejuni, 20 strains of C. coli, and 4 strains of C. lari) by the multiplex PCR coincided with those of the conventional biochemical identification tests, suggesting that the multiplex PCR can simultaneously differentiate C. jejuni, C. coli, and C. lari from wild strains of campylobacters easily and rapidly. Campylobacters were detected from sparrow feces by the multiplex PCR and antimicrobial sensitivities of the strains were determined to discuss the role of sparrows in contamination of broilers with C. jejuni. Three out of 13 strains of C. jejuni isolated from sparrow feces showed quinolone resistance. From the frequent use of quinolones for treatment of industrial animals like chickens, pigs, and cows, the three strains of quinolone-resistant C. jejuni in sparrows must have been originated from those industrial animals. Sparrows that have quinolone-resistant C. jejuni were considered to have contacted with industrial animals or thier feed. It may be presumed, on the contrary, that C. jejuni in sparrows could be a potential source of contamination of broilers. 相似文献
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金黄色葡萄球菌是引起人和动物感染及食物中毒的重要病原体之一。为了解四川省山羊金黄色葡萄球菌的健康带菌情况及其耐药性,采集了省内4个养殖场共32只山羊的鼻腔棉拭子样本,进行金黄色葡萄球菌的分离、鉴定及药敏试验。共从11只羊的鼻腔棉拭子样本中分离出金黄色葡萄球菌,检出率为34.4％。对临床分离株进行了苯唑西林、头孢西丁、万古霉素等11种抗菌药物的药敏试验,结果表明,分离株对氨苄西林的耐药率为72.7％,对其它抗菌药物没有耐药性,未发现耐甲氧西林金黄色葡萄球菌（MRSA）。本研究结果表明,四川地区山羊的金黄色葡萄球菌的带菌情况较普遍,因此,应该规范屠宰过程的卫生操作,并进行严格监控,减少金黄色葡萄球菌的污染。 相似文献
15.
Marja-Liisa Hnninen 《Acta veterinaria Scandinavica》1982,23(1):88
Characteristics of 50 strains of G. jejuni/coli isolated from rectal swabs, caecal contents or bile of cow, sheep, goat, swine, broiler chicken and man were investigated. All the strains grew at 30 °C, 35°C 42°C, but not at 25 °C. The strains were nalidixic acid sensitive. Differences were noticed in salt-tolerance, in the growth with 2,3,5 tri-phenyltetracolium chloride and in the hippurate hydrolysis. Growth of the strains with certain bile salts was also investigated and the results are discussed. 相似文献
16.
ZHI Chan-ping GUO Xiao-ting YAO Xu GUO Ze-wen WU Sheng-jun YI Ling-xian CHENG Bang-zhao WANG Jun-jun LIU Jian-hua 《中国畜牧兽医》2015,42(12):3351-3357
To determine the drug resistance of E.coli strains from swine and chicken in organic farm,collection of stool specimens was conducted in one organic farm in Conghua city,Guangdong province in 2014,in which 118 E.coli strains were separated,including 55 from chicken and 63 from swine.The sensitivity of the E.coli strains from swine and chicken to 18 kinds of drugs was detected through agar dilution method.Similar properties in drug resistance were observed both in E.coli strains from swine and chicken in the same organic farm.In consideration of the resistance rate,samples were relatively sensitive to ceftazidime,cefquinome,cefoxitin,amikacin,apramycin,gentamicin,neomycin,florfenicol,chloramphenicol,imipenem,ciprofloxacin and olaquindox (chicken 0 to 21.8%;swine 0 to 14.3%).These isolates showed moderate resistance to ampicillin and streptomycin (chicken 29.1% to 38.2%;swine 23.8% to 27.0%).About 56.4% chicken isolates and 47.6% swine isolates showed resistant to more than 3 kinds of drugs.However,severe resistance was observed in trimethoprim-sulphamethoxazole,tetracyclineand and doxycycline (chicken 45.5%,76.4% and 72.7%;swine 50.8%,81.0% and 68.3%).The results also indicated that under organic farming mode,the drug resistance rates of E.coli strains from swine and chicken were relatively low in general.Multi-drug resistance existed but was relatively slight.Although the drug resistance rate to several specific antimicrobials was high,it was still lower than that in conventional farms.Since most studies focused on the drug resistance of the bacteria under conventional farming model,this study filled the blank of the research of drug resistance under organic farming model. 相似文献
17.
有机农场鸡、猪源大肠杆菌耐药性研究 总被引：1，自引：0，他引：1
为了解有机养殖模式下鸡、猪源大肠杆菌的耐药情况,2014年从广东从化某有机农场鸡、猪粪便中采集并分离出118株大肠杆菌,包括55株鸡源大肠杆菌和63株猪源大肠杆菌,采用琼脂稀释法测定大肠杆菌对18种抗菌药的敏感性。结果发现,同一有机农场中,鸡源大肠杆菌与猪源大肠杆菌在耐药种类及耐药率上均呈现相似规律,对头孢他啶、头孢喹肟、头孢噻肟、头孢西丁、阿米卡星、安普霉素、庆大霉素、新霉素、氟苯尼考、氯霉素、亚胺培南、环丙沙星、喹乙醇等较敏感(鸡0~21.8%,猪0~14.3%),对氨苄西林、链霉素呈现轻度耐药(鸡29.1%~38.2%,猪23.8%~27.0%),对复方新诺明、四环素、多西环素呈现较严重耐药(鸡45.5%、76.4%和72.7%,猪50.8%、81.0%和68.3%)。鸡源大肠杆菌中3耐及3耐以上的菌株占56.4%,猪源大肠杆菌占47.6%。结果表明有机养殖模式下鸡、猪源大肠杆菌耐药率相对较低,多重耐药现象存在但相对轻微,对个别临床常用抗菌药耐药率虽较严重但比常规养殖场低。由于目前国内大部分学者致力于研究常规养殖方式下细菌耐药情况,本研究很好地填补了有机养殖模式下畜禽大肠杆菌耐药性研究的空白。 相似文献
18.
oqxAB是近年新发现的一种可同时介导细菌对喹口恶啉类药物、氯霉素和喹诺酮类等抗菌药物耐药的多重耐药外排泵。本研究拟比较oqxAB基因在不同来源动物大肠杆菌中的流行情况,并分析oqxAB对耐药性的影响。采用PCR法对2007—2009年主要分离自广东地区的655株大肠杆菌,包括猪源219株、牛源40株、鸭源205株及鸡源191株,进行oqxAB基因的检测,并采用琼脂稀释法测定大肠杆菌对10种抗菌药物的敏感性。oqxAB在猪、牛、鸭、鸡源大肠杆菌的阳性率分别为49.3%(108/219)、47.5%(19/40)、60.5%(124/205)和12.6%(24/191),总阳性率为42.0%(275/655)。大肠杆菌对庆大霉素、氨苄西林、复方新诺明、恩诺沙星和四环素耐药率较高,分别达到68.2%、68.7%、70.4%、77.9%和80.8%。oqxAB阳性菌和阴性菌对头孢曲松、四环素和复方新诺明的耐药率差别不显著(P＞0.05),对庆大霉素的耐药率差别显著(P＜0.05),对氨苄西林、环丙沙星、阿米卡星、氯霉素、氟苯尼考和恩诺沙星的耐药率oqxAB阳性菌极显著高于阴性菌(P＜0.01)。中国兽医临床oqxAB流行很普遍,这可能与国内大量使用喹口恶啉类药物有关。 相似文献
19.
Ertaş HB Ozbey G Kiliç A Muz A 《Journal of veterinary medicine. B, Infectious diseases and veterinary public health》2003,50(6):294-297
In this study, 100 gall bladder samples of sheep slaughtered at an abattoir in Elazi? province were examined for Campylobacter jejuni and Campylobacter coli by culture and polymerase chain reaction (PCR). Preston Campylobacter Agar supplemented with 7% horse blood and Preston Selective Supplement (Oxoid, Hampshire, UK) were used for isolation of the agents. Campylobacter spp. were isolated in 66 samples, and they were identified as 34% C. jejuni and 32% C. coli. A multiplex PCR based upon the use of ceuE gene-specific primers was applied on DNA samples extracted from C. jejuni and C. coli isolates. All C. jejuni and C. coli strains that were positive by culture were also detected to be positive by PCR. This study shows that PCR can be used an alternative, rapid and sensitive test for the identification of C. jejuni and C. coli which threaten human and animal health. 相似文献