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1.
为了更准确地对猪肺炎支原体感染及免疫状况进行检测,作者拟建立抗猪肺炎支原体IgA间接ELISA检测方法.在比较了猪肺炎支原体全菌抗原和粘附因子P97R1原核表达蛋白后,选择后者作为包被抗原;以羊抗猪IgA为二抗,兔抗猪IgG-HRP作为酶标三抗,并分别对包被抗原的浓度、样品的孵育时间、二抗与三抗的最佳稀释度和作用时间以及显色液的作用时间作了优化.最终建立了稳定而特异的抗猪肺炎支原体IgA的间接ELISA检测方法.批间与批内试验结果证明该方法具有很好的稳定性.初步应用表明,该方法可用于猪肺炎支原体感染或免疫状态的临床监测.  相似文献   

2.
口腔液取样具有无创、可实现早期诊断和群体诊断等优点,在猪病诊断中发挥的作用越来越大。在临床实践中,对口腔液样品的采集和送检如果没有做好,常常会影响诊断结果。总结口腔液采集过程中的一些影响因素和注意事项,以期为科学合理利用猪口腔液诊断猪只的健康状况提供参考。  相似文献   

3.
近十几年来,国内外动物医学界对猪口腔液的研究报道日渐增多和深化,表明口腔液可作为血清样品的替代品、评估猪应激和整体健康状况的生物标记物和特定传染病的诊断样品,为猪口腔液在疫病诊断、检测和健康状态分析等方面的推广应用提供良好的前景。  相似文献   

4.
作者进行了酶联免疫吸附试验(ELISA)检测猪囊虫抗体的研究,发现该法具有很高的敏感性和良好的特异性,少量假阳性主要由细颈囊尾蚴所致,可由细颈囊尾蚴液抑制而消除。以HRP-SPA代替HRP-兔抗猪γ球蛋白,对同一批猪血清进行了ELISA测定,发现两种结合物检测的结果一致,HRP-SPA完全可以代替HRP-兔抗猪γ球蛋白。SPA能与多种动物的IgG结合,而以与猪的IgG亲和力最强,同时它亦能与人的IgG结合。猪囊虫病为人猪共患的疾病,实验室只需准备HRP-SPA一种结合物,即可同时检测人和猪的囊虫病抗体,满足人医和兽医开展ELISA诊断囊虫病的需要。  相似文献   

5.
乳胶凝集法诊断猪囊虫病的研究   总被引：1，自引：0，他引：1  
采取371份患猪血清，138份脊液，用乳胶凝集试验诊断猪囊虫病。取新鲜痘猪囊内液体制成致敏原。分别同患猪血清和脑脊液标本应用乳胶玻片凝集反应和补体结合试验作检查。通过试验，两者的符合率 86.9%（血清）和94.7%（脑脊液）。  相似文献   

6.
<正>人类使用自己的口腔液进行疾病诊断和健康评估已经有很长的历史,并且奠定了非常深厚的研究基础。如通过检测口腔液中的抗百日咳病毒IgG来诊断和监控儿童或青少年感染百日咳的情况,还有人采用PCR方法对口腔液中的人疱疹病毒6型进行定量分析,可见口腔液检测在人医中已经得到广泛应用。而艾滋病家用试剂盒的出现表明这套系统在人医的应用上达到顶峰。而以采集口腔液为基础的健康监测系统能否用于养猪生产呢?2005年,美国衣阿华州立大学兽医诊断实验室对猪蓝  相似文献   

7.
取猪和奶山羊精液经 m-KRB 液10倍稀释,离心洗涤二次,在浓缩精液中加入2毫升m-KRB 液。取一部分稀释精液在 CO_2培养装置内培养五小时后,经离心作电镜观察。另一部分精液,注入到处女猪离体子宫内,浸没在37℃生理盐水中亦经五小时后,用 m-KRB液10毫升冲洗出精子作电镜观察。在 m-KRB 液中培养的猪精子和刚射出的精子相比较,形态上无差异。而在离体猪子宫内培养的猪和乳山羊精子,在顶体头帽部出  相似文献   

8.
为制备抗猪囊尾蚴头节单克隆抗体(MAb),本研究采用纯化的猪囊尾蚴头节(Cysticercus Cellulosae Scolex)作为抗原免疫BALB/c小鼠,通过杂交瘤细胞技术,获得3株分泌抗猪囊尾蚴头节MAb的杂交瘤细胞系(分别命名为2C6、3A5和4G10)。对这3株MAb进行生物学特性鉴定,其染色体平均记数为92±10对,经间接ELISA检测腹水效价分别为1:12800、1:6400和1:25600。亚类鉴定证实,这3株亚类均为IgG1型。Westernblot检测表明,3株纯化的MAb均可与猪囊尾蚴头节抗原发生特异反应;而与猪囊尾蚴囊壁和囊液抗原均不发生反应。本研究获得的3株MAb为猪囊尾蚴病免疫学诊断研究奠定技术基础。  相似文献   

9.
1　抗猪瘟高免血清的制备　选取体况和健康状况一致的试验猪为供试猪进行首次免疫,将供试猪颈部肌注猪瘟兔化弱毒苗10头份/头猪,观察免疫后猪只的精神、食欲等变化。10天后耳静脉采血,Ｄｏｔ-ＥＬＩＳＡ诊断试剂盒测效价达1∶80。二免猪瘟兔化弱毒苗20头份/头猪,15天后采血测效价达1∶320。三免用猪瘟野毒强毒颈部肌注1∶10脾组织悬液10ｍＬ/头,20天后采血测效价达1∶1280。器械消毒准备完成后,颈总动脉放血致死,分离血清,加入2000ｉｕ/ｍＬ双抗,0.01%硫柳汞,即制成抗猪瘟高免血清,分装于-15℃冷冻保存备用。(见表1)表1　抗猪瘟高免血清的制…  相似文献   

10.
鉴于目前国内外用于诊断猪弓形体病原的实验室方法还多少存在一些不足之处,例如操作程序繁琐,费时、技术要求高,有时检出率不高。为了寻找一种比较简便、准确、快速的诊断方法,我们参考中国人民解放军八三医院检验科,利用日本检查人体疟原虫时应用的吖啶橙荧光技术,转而应用到病猪淋巴结等组织的猪弓形体原虫的快速诊断,并与瑞氏染色普通镜检法以及荧光抗体法对阳性小白鼠腹腔液的虫体鉴定和检出率作了对比试验,现将初步试验结果报告如下。  相似文献   

11.
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks.  相似文献   

12.
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large.  相似文献   

13.
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses.  相似文献   

14.
Tropical Animal Health and Production -  相似文献   

15.
The epidemiology of H. placei and of other gastrointestinal nematodes in yearling dairy cattle was examined on two farms in Kiambu District, central Kenya during each of 13 one-month periods from April 1993 to April 1994. On each farm, 32 newly weaned dairy calves were given a single dose of albendazole and then placed on experimental pastures. Twelve of the animals were designated for bi-monthly slaughter (n = 2) and analysis of worm population characteristics and 20 were designated for blood and faecal collection and for weighing. Two parasite-free tracer calves were grazed alongside the weaner calves each month throughout the study period and were also slaughtered for analysis of worm populations. Faecal egg counts, haematological and serum pepsinogen determinations, herbage larval counts, and animal live weight changes were recorded monthly. The study revealed that Haemonchus placei, Trichostrongylus axei, Cooperia spp. and Oesophagostomum radiatum were responsible for parasitic gastroenteritis and that H. placei was the predominant nematode present in the young cattle on both farms. Faecal egg counts from resident cattle and necropsy worm counts revealed that pasture larval levels were directly related to the amount of rainfall. The total worm burdens in the animals were highest during the rainy season (March–June and October–December) and lowest during the dry seasons (July–September and January–February). The very low recovery of immature larvae of H. placei from the tracer calves indicated that arrested development is not a feature of the life cycle of this parasite in central Kenya. The maintenance of the parasite population depended on continuous cycling of infection between the host and the pasture. The agroclimatic conditions of the study area were such that, in general, favourable weather conditions for the development and survival of the free-living stages of gastrointestinal nematodes existed all year round.  相似文献   

16.
The occurrence of ectoparasites in sheep flocks is frequently reported but seldom quantified. Sheep production used to be a predominantly family activity in the state of Sa~o Paulo (Brazil), but it began to become a commercial activity in the past decade. Thus, information about the ectoparasites existing in sheep flocks has become necessary. The present data were obtained by means of questionnaires sent to all sheep breeders belonging to the `Associaça~o Paulista de Criadores de Ovinos' (ASPACO; Sa~o Paulo State Association of Sheep Breeders). Response reliability was tested by means of random visits paid to 10.6% of the respondents. Most of the properties (89.5%) reported the presence of one or more ectoparasites. Screw-worm (Cochliomyia hominivorax) was the most frequent ectoparasite (72.5%), followed by bot fly larvae (Dermatobia hominis, 45.0%), ticks (Amblyomma cajennense) and Boophilus microplus, 31.3%) and finally lice (Damalinia ovis, 13.8%). Combined infestations also occurred, the most common one being screw-worm with bot fly larvae (36.0%) followed by bot fly larvae with ticks (13.9%), screw-worm with ticks (9.3%), bot fly larvae with lice (6.9%), and ticks with lice (5.0%). The most common triple combination was screw-worm, bot fly larvae and ticks (12.8%). Breeds raised for meat or wool were attacked by bot fly larvae and ticks more often than other breeds. Lice were only absent from animals of indigenous breeds. The relationships among these ectoparasites are discussed in terms of sheep breeds, flock size, seasonality and the ectoparasitic combinations on the host.  相似文献   

17.
Our particular attention in this article was given to natural mediators for macrophages isolated from the sites of tissue injury. A number of chemotactic factors, which may satisfy many criteria making them acceptable as inflammatory leucocyte chemotactic factors, has been separated. Among them, our laboratory has isolated three macrophage (monocyte) chemotactic factors (MCF-a, -b and -c). Their purification, characterization and functional specificity are discussed.  相似文献   

18.
Comparison of different tests to diagnose feline infectious peritonitis   总被引：1，自引：0，他引：1  
  相似文献   

19.
An experiment was conducted to study disappearance of C14 to C18 fatty acids, lag times and biohydrogenation (BH) rates of C18 fatty acids of ground soya bean and canola seeds in situ. Three ruminally fistulated Dallagh sheep were used to determine ruminal BH of unsaturated fatty acids (UFAs). Differences in the disappearance of fatty acids through the bags and lag times were observed between the oilseeds. We saw that the longer the incubation time of the oilseeds in the rumen, the lower the content of C18:2 and C18:3. Significantly higher lag times for both C18:2 and C18:3 were observed in ground canola compared to ground soya bean. BH rates of C18:2 and C18:3 fatty acids in soya bean were three times higher than those of canola. These results suggest that the fatty acid profile of fat source can affect the BH of UFAs by rumen micro‐organisms. So that UFAs of canola had higher ability to escape from ruminal BH. It seems that fatty acid profile of ruminant products is more affected by canola seed compared to soya bean seed.  相似文献   

20.
Serum biochemical values and the wet weight to dry weight ratios of tissues were determined in yaks in Shandan county of Gansu province. The liver, kidney, heart and muscle contents of seven elements in yaks were also analysed. Most serum biochemical values were similar to those of cattle, camels and sheep, but the calcium concentration was considerably above the normal range for other ruminants. The liver contained the highest concentrations of copper, manganese and cobalt and the kidney of selenium, iron and calcium.Abbreviations Alb albumin - ALT alanine aminotransferase - AST aspartate aminotransferase - BUN blood urea nitrogen - Chol cholesterol - Glob globulin - -GT -glutamyl transpeptidase - IP inorganic phosphorus - TP total protein  相似文献   

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