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为了更好地指导犬细小病毒病的防治,减少犬患细小病毒病的几率,通过实验验证PHA复合物对犬细小病毒疫苗是否有增强其免疫效果的作用,并拟定出实验观察的具体实施方案。实验选用年龄2～3岁、体重4kg左右的未经免疫或者免疫已过期的健康犬12条,随机分成对照组A和实验组B,每组6条。实验组每条犬皮下注射1头份英特威二联苗并口服PHA复合物0.1mg/kg体重,对照组每条犬皮下注射一头份英特威二联苗。各组在免疫接种前及接种后7、14d,分别颈前静脉采血,分离血清用CPV-Ab金标试纸条测定其抗体滴度,计算阳转率并进行t检验:接种后7d,A组阳转率为33.33%,B组阳转率为50%,实验组与对照组相比,阳转率有所提高,但是t检验时差异不显著;接种后14d,A组和B组的阳转率均为83.33%,但A组抗体滴度≥1∶64的有50%,B组抗体滴度≥1∶64的有66.66%,A组抗体滴度在较低的水平1∶32～1∶64之间波动,而B组抗体滴度在较高的抗体水平1∶64～1∶128之间波动。说明PHA复合物与英特威二联苗联用,可提高犬对英特威二联苗的抗体应答能力,对防治犬细小病毒病有重要作用。 相似文献
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为了更好指导犬细小病毒病的防治,减少犬患细小病毒病的几率,通过试验验证PHA复合物对犬细小病毒疫苗是否有增强其免疫效果的作用,并拟定出试验观察的具体实施方案。试验选择年龄2至3岁、体重4 kg左右的未经免疫或者免疫已过期的健康犬12只,随机分成对照组A和试验组B,每组6只。试验组每只犬皮下注射一头份英特威二联苗并每千克体重口服PHA复合物0.1 mg,对照组每只犬皮下注射一头份英特威二联苗。各组在免疫接种前及接种后第7天和第14天,分别颈前静脉采血,分离血清用CPV-Ab金标试纸条测定其抗体滴度,计算阳转率并进行t检验。接种后第7天,A组阳转率为33.33%,B组阳转率为50%,试验组与对照组相比,阳转率有所提高,但是t检验时差异不显著;接种后第14天,A组和B组的阳转率均为83.33%,但A组抗体滴度≥1∶64的有50%,B组抗体滴度≥1∶64的有66.66%,A组抗体滴度在较低的水平1∶32～1∶64之间波动,而B组抗体滴度在较高的抗体水平1∶64～1∶128之间波动;说明PHA复合物与英特威二联苗联用可提高犬对英特威二联苗的抗体应答能力,对防治犬细小病毒病有重要作用。 相似文献
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该警犬为德国牧羊犬和荷兰牧羊犬杂交犬,雌性,15月龄,定期进行预防接种和驱虫,接种疫苗为荷兰英特威二联苗（犬细小病毒、犬瘟热）和六联苗（犬细小病毒、犬瘟热、犬传染性肝炎、犬腺病毒、犬副流感、犬钩端螺旋体）,驱虫药为盐酸左旋咪唑。自2007年5月服役以来健康状况一直良好。 相似文献
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为了观察中药佐剂对犬疫苗的免疫增强作用,选取45日龄仔犬24头随机分为6组,均用英特威二联苗首免,首免后第14、28天再分别用英特威四联苗、辉瑞四联苗二免、三免,1头份/头,在每次免疫的同时,4个中药佐剂组分别肌肉注射高浓度方Ⅰ和方Ⅱ、低浓度的方Ⅰ和方Ⅱ,1 mL/头,佐剂对照组口服左旋咪唑片(2.5 mg/kg),无佐剂对照组不给药.分别于免疫前(0 d)及首次免疫后第7、14、21、28、35、42天前肢静脉采血,分离血清,检测犬瘟热、犬细小病毒病和犬传染性肝炎抗体及IL-2、IFN-γ、IL-4和IL-10含量的变化.结果显示,2个中药佐剂对3种抗体效价及4种细胞因子的含量均有不同程度的提高,并存在一定的量效关系,综合评价以方Ⅰ高剂量的效果最好. 相似文献
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<正>1免疫时间和所用疫苗1.1首次免疫42日龄时用犬五联(或四联、六联)疫苗+脑炎疫苗免疫。注:犬五联苗为犬瘟热、细小病毒病、狂犬病、副流感、传染性肝炎。犬四联苗为犬瘟热、细小病 相似文献
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犬细小病毒病是由犬细小病毒引起的急性传染病,以剧烈呕吐、出血性肠炎、心肌炎为主要特征,是目前犬病毒性腹泻的主要原因之一。接种疫苗是预防犬细小病毒病的最有效途径。一旦犬发生免疫失败感染犬细小病毒病时,应采取相应的防治措施,以降低损失。笔者通过一典型病例的诊疗过程,对犬细小病毒病的发病、诊断及防治措施进行了介绍,以期为犬细小病毒病的诊治提供参考。 相似文献
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洪学 《河南畜牧兽医(综合版)》2006,27(12):19-19
危害肉犬的主要传染病有犬瘟热、犬细小病毒病、狂犬病、犬传染性肝炎和犬副流感,这五种病死亡率都很高。因此,要提高肉犬饲养的经济效益,就必须搞好疫病防治。预防接种疫苗是增强肉犬特异性免疫力、预防传染病发生的重要措施。目前,国内已生产出预防犬瘟热、犬细小病毒病、狂犬病、犬传染性肝炎和犬副流感这五种传染病的“五联苗”。它们的接种方法均为皮下或肌肉注射,首次接种在6～8周龄;二次接种为10～12周龄;三次接种为14～16周龄;免疫期为1年。一般肉用种犬每年注射1次五联苗。肉用幼犬从经济的角度讲,从出生到出栏最迟到8月龄,以注射… 相似文献
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一株新分离犬细小病毒灭活疫苗的制备及免疫效果研究 总被引：1，自引：0，他引：1
JL0911株犬细小病毒是由军事兽医研究所流行病与病毒病防控技术实验室分离得到的一株新型犬细小病毒,其主要抗原位点上的氨基酸序列较国内先前分离到的其他株有较大差异,不能被归入目前已有的CPV-2a、CPV-2b、CPV-2c三个类型。本研究旨在利用JL0911株犬细小病毒研制灭活疫苗,并评价其免疫原性。试验采用105.5 TCID50/mL的犬细小病毒JL0911,以甲醛灭活后,加入1/4体积的纳米佐剂,制备了犬细小病毒灭活疫苗。取1.5 mL上述疫苗,通过肌肉注射免疫普通家犬,免疫前后不同时间均采集血清,在F81细胞系上测定犬细小病毒的中和抗体。结果显示,免疫后14 d,试验犬血中细小病毒中和抗体效价较免疫前有显著提高,最高可由0提高至29,表明本试验分离的JL0911株犬细小病毒具有生产犬细小病毒灭活疫苗的潜在价值。 相似文献
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通过临床症状、流行病学特点和犬细小病毒抗原试剂盒对疑似细小病毒感染的216例病犬进行确诊,并对确诊为细小病毒感染的部分病例进行抗体水平检测,以判断其预后,采用中西结合的综合措施治疗发病犬,治愈率达到70%,提出了有效的预防措施。 相似文献
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T Miyamoto Y Taura S Une M Yoshitake S Nakama S Watanabe 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》1992,54(5):945-950
To clarify the immunologic effects of vaccination in dogs, we monitored total leukocyte and lymphocyte counts, humoral antibody responses, blastogenic responses of lymphocyte, and delayed type hypersensitivity (DTH) responses after vaccination. Mixed vaccines were administered on day 0 except for canine parvovirus (CPV) vaccine which was readministered on day 21. The puppy and adult dogs had a significant decrease in leukocyte and lymphocyte counts on day 7. The puppies showed a significant increase in the blastogenesis of lymphocytes after each vaccination, whereas the adult dogs had no significant changes. However, the adult dogs were divided into two groups, high responders and low responders in blastogenesis of lymphocytes. The dogs with higher or lower response in SI values on day 0 tended to show decrease or increase after the first vaccination, respectively. Since almost all dogs developed high titers of humoral antibody, it is considered that vaccination acts in an immunomodulative fashion. DTH responses to phytohemagglutinin (PHA) and CPV vaccine monitored at 0, 3, and 8 weeks after the first vaccination produced strong reactions, in particular those to CPV vaccine rose significantly after vaccination and maintained the higher responses for at least 2 months. These results suggest that DTH responses to PHA and CPV vaccine are helpful to monitoring non-specific and specific immune functions in vivo, therefore, DTH could be used as simple and rapid immunologic tests in canine practice. 相似文献
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白细胞介素-2对犬细小病毒疫苗免疫效果的影响 总被引：3，自引：2，他引：1
为研究白细胞介素-2(IL-2)对犬细小病毒疫苗免疫效果的影响,选择40只幼犬,随机分成试验组和对照组,试验组按0.5 ml/头份加入犬用IL-2与犬细小病毒疫苗一起皮下注射,对照组单独使用犬细小病毒疫苗,注射后分别在接种前、接种后7 d和14 d使用金标试纸条检测其抗体效价,并进行组间抗体效价差异的t检验。试验结果表明,接种疫苗前试验组与对照组犬细小病毒平均抗体效价之间差异不显著;接种疫苗后7 d,试验组与对照组犬细小病毒平均抗体效价差异极显著(P<0.01);接种疫苗后14 d,试验组与对照组犬细小病毒平均抗体效价差异极显著(P<0.01)。试验表明:IL-2可明显提高幼犬对犬细小病毒疫苗的抗体应答能力,是一种良好的犬细小病毒疫苗候选佐剂。 相似文献
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van Heerden J Bingham J van Vuuren M Burroughs RE Stylianides E 《Journal of the South African Veterinary Association》2002,73(1):8-12
Wild dogs Lycaon pictuis (n = 8) were vaccinated 4 times against canine distemper (n = 8) (initially with inactivated and subsequently with live attenuated strains of canine distemper) and canine parvovirus infection (n = 8) over a period of 360 days. Four of the wild dogs were also vaccinated 3 times against rabies using a live oral vaccine and 4 with an inactivated parenteral vaccine. Commercially-available canine distemper, canine parvovirus and parenteral rabies vaccines, intended for use in domestic dogs, were used. None of the vaccinated dogs showed any untoward clinical signs. The inactivated canine distemper vaccine did not result in seroconversion whereas the attenuated live vaccine resulted in seroconversion in all wild dogs. Presumably protective concentrations of antibodies to canine distemper virus were present in all wild dogs for at least 451 days. Canine parvovirus haemagglutination inhibition titres were present in all wild dogs prior to the administration of vaccine and protective concentrations persisted for at least 451 days. Vaccination against parvovirus infection resulted in a temporary increase in canine parvovirus haemagglutination inhibition titres in most dogs. Administration of both inactivated parenteral and live oral rabies vaccine initially resulted in seroconversion in 7 of 8 dogs. These titres, however, dropped to very low concentrations within 100 days. Booster administrations resulted in increased antibody concentrations in all dogs. It was concluded that the vaccines were safe to use in healthy subadult wild dogs and that a vaccination protocol in free-ranging wild dogs should at least incorporate booster vaccinations against rabies 3-6 months after the first inoculation. 相似文献
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为研究白细胞介素 2（IL-2）对犬细小病毒疫苗免疫效果的影响,选择40只幼犬,随机分成试验组和对照组,试验组按0.5 ml/头份加入犬用IL-2与犬细小病毒疫苗一起皮下注射,对照组单独使用犬细小病毒疫苗,注射后分别在接种前、接种后7 d和14 d使用金标试纸条检测其抗体效价,并进行组间抗体效价差异的t检验。试验结果表明,接种疫苗前试验组与对照组犬细小病毒平均抗体效价之间差异不显著;接种疫苗后7 d,试验组与对照组犬细小病毒平均抗体效价差异极显著(P<0.01);接种疫苗后14 d,试验组与对照组犬细小病毒平均抗体效价差异极显著(P<0.01)。试验表明：IL 2可明显提高幼犬对犬细小病毒疫苗的抗体应答能力,是一种良好的犬细小病毒疫苗候选佐剂。 相似文献
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Abdelmagid OY Larson L Payne L Tubbs A Wasmoen T Schultz R 《Veterinary therapeutics : research in applied veterinary medicine》2004,5(3):173-186
The results of this study confirmed that dogs vaccinated subcutaneously with a commercially available multivalent vaccine containing modified-live canine distemper virus, canine adenovirus type 2, canine parvovirus type 2b, and canine parainfluenza virus antigens were protected against sequential experimental challenge 55 to 57 months after initial vaccination given at 7 to 8 weeks of age. All 10 vaccinates were protected against clinical diseases and mortality following parvovirus and infectious canine hepatitis experimental infections. All vaccinates were protected against mortality and 90% against clinical disease following distemper challenge. These data support at least a 4-year duration of immunity for these three "core" fractions in the combination vaccine. 相似文献
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犬瘟热,猫细小病毒,犬腺病毒弱毒株的理化特性及生物学试验 总被引：4，自引：2，他引：2
以鸡胚成纤维细胞（ＣＥＦ）、猫肾传代细胞（ＣＲＦＫ）、狗肾传代细胞（ＭＤＣＫ）从引进的疫苗中分别分离到犬瘟热ＣＤＶ－Ａ株、猫细小病毒ＦＰＶ株、犬腺病毒ＣＡＶ１株。对三个弱毒株的细胞病变规律,形态特征,病毒滴度,理化特性,核酸型,血清学交叉反应,本动物的安全性及免疫原性等内容进行了试验。鉴定结果表明,３个弱毒株均可作为制苗用毒种 相似文献