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1.
为查清渭南地区奶牛乳房炎主要病原菌的种类及其药物敏感情况,为本地区奶牛乳房炎的防治提供理论依据,对渭南地区部分奶牛场采集39份临床型或隐性乳房炎乳样进行细菌分离鉴定,并对主要病原菌进行药敏试验。结果表明:从所测乳样中检查出细菌48株,其中金黄色葡萄球菌18株,占37.5%;大肠杆菌14株,占29.2%;无乳链球菌9株,占18.7%;乳房链球菌5株,占10.4%;停乳链球菌2株,占4.2%。主要病原菌对各药物敏感性不同,其中对头孢喹诺、头孢曲松钠、环丙沙星、氧氟沙星均高度敏感,对青霉素、红霉素、克林霉素等有较强的耐药性。 相似文献
2.
为了解云南省奶牛乳房炎的主要病原菌及耐药情况,提供试验依据与理论参考,对云南省5个地区30个奶牛场60份奶样进行细菌分离鉴定和药敏试验。结果表明:引起云南省奶牛乳房炎的病原菌主要是金黄色葡萄球菌、柠檬色葡萄球菌、乳链球菌、化脓棒状杆菌和大肠杆菌。在检出的70株病原菌中,金黄色葡萄球菌21株,占30.0%;柠檬色葡萄球菌7株,占10.0%;乳链球菌15株,占21.4%;大肠杆菌27株,占38.6%。各病原菌均对大环内酯类抗生素敏感,可以尝试作为预防与治疗云南省奶牛乳房炎的首选药物,但对青霉素、氨基糖苷类、磺胺类、头孢类、喹诺酮类抗生素产生了不同程度的耐药性。 相似文献
3.
为解大肠杆菌在新疆昌吉地区奶牛隐性乳房炎流行中所起的作用,试验对昌吉地区奶牛隐性乳房炎病牛乳样进行了大肠杆菌的分离、鉴定及耐药性研究。结果表明,昌吉地区规模化奶牛场的隐性乳房炎阳性率为40.8%,从671份乳样中分离出大肠杆菌64株,占样本数的9.5%,大肠杆菌、金黄色葡萄球菌、链球菌三种细菌总数的32.16%。药敏试验结果表明鉴定出的64株大肠杆菌对氧氟沙星、头孢唑林、克林霉素敏感;对青霉素、庆大霉素、氨苄西林中度敏感;对链霉素、四环素有耐药性。 相似文献
4.
为了弄清呼和浩特及周边地区奶牛乳房炎的分布情况,鉴定主要致病菌的耐药特征,为本地区奶牛乳房炎的防治提供理论依据,对内蒙古呼和浩特及周边地区部分奶牛场进行了调查,共采奶样100份进行细菌分离鉴定并对主要病原菌进行药敏实验.结果表明,导致该地区奶牛乳房炎的病原菌主要为金黄色葡萄球菌、链球菌和大肠杆菌.检测出的124株病原菌中,有金黄色葡萄球菌36株,占32.1%;无乳链球菌36株,占32.1%;停乳链球菌24株,占21.4%;大肠杆菌16株,占14.3%;其它菌12株,占10.7%.4种主要病原菌对各药物敏感性不同,对环丙沙星、左氟沙星、氧氟沙星和先锋霉素V均较为敏感,但对青霉素、红霉素、复方新诺明等有较强的耐药性. 相似文献
5.
为了弄清引起我国不同地区奶牛乳房炎病原菌的种类及分布情况,研究致病菌的耐药性特征,为该地区及我国奶牛乳房炎的综合防治提供理论依据,本研究对甘肃和贵州地区部分奶牛场采得的临床型或亚临床型乳房炎患牛奶样169份进行细菌分离鉴定和病原菌药敏试验。结果表明,引起两地区奶牛乳房炎的病原菌主要为葡萄球菌、链球菌和大肠杆菌。在检出的189株病原菌中,金黄色葡萄球菌65株,占34.39%;表皮葡萄球菌62株,占32.8%;无乳链球菌4株,占2.12%;停乳链球菌32株,占16.93%;乳房链球菌13株,占6.88%;大肠杆菌13株,占6.88%。各种病原菌在两地区所占的比例具有差异性。各病原菌对药物的敏感性多有不同,但大多对左氟沙星、环丙沙星和先锋霉素V较为敏感,而对其他药物均有不同程度的耐药情况,特别是对复方新诺明、青霉素和万古霉素产生了强耐药性。 相似文献
6.
为了获得上海地区奶牛乳房炎病原菌及其药物敏感性的系统资料并为指导临床合理用药和提高奶牛乳房炎防治效果提供理论依据,本研究对在上海郊区4个奶牛场采集的临床型和隐性乳房炎患牛的126份奶样进行细菌培养、分离鉴定和药敏试验.共分离到萄葡球菌,无乳链球菌,大肠杆菌3种主要病原菌107株,其中金黄色葡萄球菌74株,占分离菌株的69.16%;无乳链球菌27株,占分离菌株的25.23%;病原菌单独感染率为48.78%,其中金黄色葡萄球菌的单独感染率达39.02%;病原菌混合感染率占51.22%,多为金黄色葡萄球菌和无乳链球菌混合感染.主要病原菌对头孢拉定、环丙沙星、庆大霉素敏感,对大多数抗菌素产生了不同程度的耐药性,对氨苄青霉素产生了完全耐药性. 相似文献
7.
将从黑龙江西部地区部分奶牛场采集的临床型乳房炎奶牛的22份奶样进行细菌培养、分离鉴定和药敏试验。共分离到葡萄球菌,无乳链球菌,大肠杆菌3种主要病原菌56株。金黄色葡萄球菌32株,占分离菌株的57．14％;大肠杆菌15株,占分离菌株的26．79％;无乳链球菌3株,占分离菌株的5．36％,多为金黄色葡萄球菌和大肠杆菌的混合感染。主要病原菌对头孢噻呋、达诺沙星、新霉素敏感,对大多数抗生素产生了不同程度的耐药性,对氨苄青霉素已经产生完全耐药性。 相似文献
8.
对无锡6个奶牛场做了临床型乳房炎和隐性乳房炎调查,并对采集的63份临床乳房炎乳样和61份隐性乳房炎乳样分别做了细菌学检查,将样品分别划线接种于麦康凯琼脂平板、普通肉汤琼脂平板、Todd-Hewittbroth（THB）琼脂平板进行分离纯化培养。挑取纯化平板上的单菌落进行生化试验。试验结果表明,引起奶牛乳房炎主要病原菌包括凝固酶阴性葡萄球菌、金黄色葡萄球菌、链球菌、肠杆菌等。药敏试验表明,三种主要致病菌对多种抗生素都产生了耐药性。 相似文献
9.
黑龙江省某奶牛场奶牛乳房炎发病率高,牛乳中体细胞超标严重,严重影响该奶牛场的经济效益。为了明确引起该奶牛场奶牛乳房炎的主要致病病原菌,筛选敏感药物给出治疗方案。本实验对该奶牛场中30份奶牛乳房炎乳汁进行乳样处理、细菌培养、药敏试验及DNA提取和PCR扩增。通过DNA提取和PCR扩增确定其主要致病病原菌大多为无乳链球菌、停乳链球菌、肠球菌及少量金黄色葡萄球菌。乳样中并未检测出支原体、乳房链球菌及变形杆菌。药敏试验结果表明,该场患病奶牛对阿莫西林、头孢噻呋钠敏感,对一种商品名为惠可宁的硫酸头孢喹肟乳房注入剂耐药性明显。最终得出该厂患乳房炎奶牛的乳汁中分离出的细菌大多数为停乳链球菌,无乳链球菌,肠球菌和少量的金黄色葡萄球菌。当本地区奶牛检测为乳房炎时,可首选阿莫西林,头孢噻呋钠等敏感药物治疗,对奶牛乳房炎的治疗具有积极的指导意义。 相似文献
10.
[目的 ]了解宁夏地区奶牛隐性乳房炎主要病原菌流行情况及主要病原菌的耐药特征。[方法 ]采集宁夏地区5个规模化奶牛养殖场乳样共计461份,分离培养后,应用全自动细菌鉴定仪进行鉴定并选择主要致病菌进行药敏试验。[结果 ]隐性乳房炎阳性检出率平均为65.3%(301/461);分离到金黄色葡萄球菌22株、无乳链球菌5株、大肠杆菌10株。这些细菌对阿米卡星、头孢噻肟等药物敏感,对青霉素与环丙沙星耐药。[结论 ]宁夏地区奶牛隐性乳房炎的阳性率较高,主要病原菌对阿米卡星、头孢噻肟等药物敏感。 相似文献
11.
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%). Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada. 相似文献
12.
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
13.
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection. 相似文献
15.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
16.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated. Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively. 相似文献
17.
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
18.
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%). Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada. 相似文献
20.
In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
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