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1.
双抗夹心—ELISA诊断牛隐孢子虫病 总被引：15，自引：1，他引：14
为了建立双抗体夹心—ＥＬＩＳＡ检测牛粪便中隐孢子虫卵囊抗原的方法。采用抗小球隐孢子虫（Ｃ．ｐａｒｖｕｍ）卵囊壁单克隆抗体,经对６０头份牛粪便样本分别进行抗酸染色和双抗夹心—ＥＬＩＳＡ检测,结果抗酸染色法检出１２头份有隐孢子虫卵囊,而ＥＬＩＳＡ除对抗酸染色阳性的１２份粪样判为阳性外,还对抗酸染色阴性的４份粪样判为阳性,且不与牛球虫、牛结肠小袋纤毛虫发生类属反应。此外,本试验在稀释液中加入ＥＤＴＡ,并增加了反应温度,使得试验在抗体包被板并封闭后３０ｍｉｎ结束整个检测过程。结果表明,双抗体夹心—ＥＬＩＳＡ是敏感性高、特异性强的诊断牛隐孢子虫病的方法。 相似文献
2.
PCR方法检测奶牛粪便中鼠隐孢子虫 总被引：14，自引：2，他引：12
从含有鼠隐孢子虫卵囊的奶牛粪便中,直接提取 Ｄ Ｎ Ａ 用作 Ｐ Ｃ Ｒ 模板,用 １ 对人工合成的寡核苷酸作为 Ｐ Ｃ Ｒ 引物,扩增大小为 ５４０ ｂｐ 的特异片段。 Ｐ Ｃ Ｒ 产物经电泳鉴定,表明可从含隐孢子卵囊的奶牛粪便标本 Ｄ Ｎ Ａ 抽提物中扩增出目的片段,而其他几种寄生虫及阴性对照均不能扩增出特异片段。本方法的敏感性最低可检测到含卵囊 ４００ 个／ｍ Ｌ 的样本,具有敏感性高、特异性强的特点。 相似文献
3.
隐孢子虫卵囊形态学观察及动物交叉感染试验 总被引：3，自引：1，他引：2
作者观察了从湖南６种动物分离出的隐孢子虫卵囊的光镜下形态，并以鸡源、牛源和猪源隐孢子虫卵囊人工感染实验动物作交叉感染性研究。结果鉴定出隐孢子虫３个种，即贝氏隐孢子虫（Ｃ．ｂａｉｌｅｙｉ），寄生于鸡、鸭；微小隐孢子虫（Ｃ．Ｐａｒｖｕｍ），寄生于牛、山羊、猪、家兔和小鼠；鼠隐孢子虫（Ｃ．ｍｕｒｉｓ），寄生于牛。交叉感染结果表明，来自鸡的隐孢子虫可以感染雏鸡和雏鸭，而不能感染小鼠和家兔；来自牛的隐孢子虫可以感染小鼠和家兔而不能感染雏鸡，来自猪的隐孢子虫可以感染小鼠而对雏鸡无感染性。作者认为，哺乳类和鸟类的隐孢子虫可能在宿主纲的水平上具有宿主持异性。 相似文献
4.
M．M．A．Mtambo 《中国兽医寄生虫病》1994,2(2):68-69
猫粪便中隐孢子球虫卵囊染色和浓集检测法的比较［英］Ｍ．Ｍ．Ａ．Ｍｔａｍｂｏ等隐孢子虫是一种球虫目的寄生虫，可引起人和多种动物的腹泻。隐孢子虫病的诊断主要是从宿主粪便中查得卵囊而确诊。已用于隐孢子虫卵囊检查的有卵囊染色的改良萋－尼法（ＭＺＮ）、金胺酚法... 相似文献
5.
双抗夹心——ELISA诊断兔隐孢子虫病初步研究 总被引：2，自引：0，他引：2
本文报道了应用双抗夹心－ＥＬＩＳＡ检测兔粪便中隐孢子虫卵囊抗原方法的建立，试验所用抗体为抗小球隐孢子虫（Ｃ．ｐａｒｖｕｍ）卵囊壁的单克隆抗体，经过２０头份兔粪便样本分别进行抗酸染色和双抗夹心－ＥＬＩＳＡ试验，结果抗酸染色法检出８份有隐孢子虫卵囊，而ＥＬＩＳＡ法除对抗酸染色阳性的８份粪样判为阳性外，还对抗酸染色阴性外，还对抗酸染色阴性的１份粪样判为阳性，并不与兔球虫粪便发生类属反应，此外，本试验还在 相似文献
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7.
应用间接ELISA检测动物隐孢子虫病抗体 总被引：4，自引：0，他引：4
分别应用蔗糖和氯化铯密度梯度离心法纯化小型隐孢子虫（ Ｃｒｙｐ ｔｏｓｐ ｏｒｉｄｉｕｍ ｐ ａｒｖｕｍ ）卵囊，获得高纯度的抗原，建立了用间接 Ｅ Ｌ Ｉ Ｓ Ａ 检测动物隐孢子虫病抗体的方法。抗原最适包被质量浓度是 ５．０ ｍ ｇ／ Ｌ，待检血清最佳稀释度是 １∶１００，明胶封闭体积分数和作用时间分别为 １％ 和 ６０ｍ ｉｎ。试验证明，该法具有快速、简便、特异和重复性好等优点。 相似文献
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9.
应用巢式聚合酶链反应(Nested PCR)建立了一种检测隐孢子虫(Cryptosporidium)的方法。试验中隐孢子虫卵囊纯化采用庶糖密度梯度离心法,以液氮-热水浴反复冻融及酚-氯仿抽提冷乙醇沉淀法制备模板DNA,根据隐孢子虫18S rRNA序列高度保守区设计2对引物,建立Nested PCR诊断方法。该方法特异性强,可检出牛源微小隐孢子虫(C.parvum)、羊源微小隐孢子虫(C.parvum)、牛源安氏隐孢子虫(C.andersoni)、鸡源贝氏隐孢子虫(C.baileyi)及猪源隐孢子虫(C.suis);敏感性高,该方法最低核酸DNA检测量达到10fg。初步应用结果表明,所建立的Nested PCR方法适合于隐孢子虫病的诊断和分子流行病学调查。 相似文献
10.
本文报道了应用双抗夹心─ＥＬＩＳＡ检测兔粪便中隐孢子虫卵囊抗原方法的建立。试验所用抗体为抗小球隐孢子虫（Ｃ．ｐａｒｖｕｍ）卵囊壁的单克隆抗体，经对２０头份兔粪便样本分别进行抗酸染色和双抗夹心─ＥＬＩＳＡ试验．结果抗酸染色法检出８份有隐孢子虫卵囊，而ＥＬＩＳＡ法除对抗酸染色阳性的８份粪样判为阳性外，还对抗酸染色阴性的１份粪样判为阳性；并不与兔球虫粪便发生类属反应。此外，本试验还在稀释液中加入ＥＤＴＡ，并增加了反应温度，使得试验在抗体包被反应板并封闭完成后３０分钟结束整个检测过程。 相似文献
11.
试验选用96头平均体重14.82 kg左右的杜×长×大断奶仔猪,随机分成4组,每组3栏,每栏8头(公母各半)。对照组饲喂基础日粮,试验1、2、3组分别添加1%80目白术、0.2%白术多糖和1%微米白术。试验期30 d。结果表明:在生长性能方面,与对照组相比,1%微米白术添加组可显著提高日增重(P0.05)、降低饲料增重比和腹泻率,而且效果优于1%80目白术组和0.2%白术多糖组,在肠道形态和肠道微生态区系方面,与对照组相比,日粮添加1%80目白术、0.2%白术多糖、1%微米白术均可不同程度的提高十二指肠和空肠的绒毛高度,加深十二指肠和空肠的隐窝深度,并且增加肠道微生态区系的多样性,其中以1%微米白术添加组的效果最佳。 相似文献
12.
Sissay, M.M., Uggla, A. and Waller, P.J., XXXX. Prevalence and seasonal incidence of nematode parasites and fluke infections
of sheep and goats in eastern Ethiopia. Tropical Animal Health and Production, XXXX. A 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal
(GI) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern Ethiopia. During May 2003 to April
2005, viscera including liver, lungs and GI tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs
located in the towns of Haramaya, Harar, Dire Dawa and Jijiga in eastern Ethiopia. All animals were raised in the farming
areas located within the community boundaries for each town. Collected materials were transported within 24 h to the parasitology
laboratory of Haramaya University for immediate processing. Thirteen species belonging to 9 genera of GI nematodes (Haemonchus contortus, Trichostrongylus axei, T. colubriformis, T. vitrinus, Nematodirus filicollis, N. spathiger, Oesophagostomum
columbianum, O. venulosum, Strongyloides papillosus, Bunostomum trigonocephalum, Trichuris ovis, Cooperia curticei and Chabertia ovina), and 4 species belonging to 3 genera of trematodes (Fasciola hepatica, F. gigantica, Paramphistomum {Calicohoron} microbothrium and Dicrocoelium dendriticum) were recorded in both sheep and goats. All animals in this investigation were infected with multiple species to varying
degrees. The mean burdens of adult nematodes were generally moderate in both sheep and goats and showed patterns of seasonal
abundance that corresponded with the bi-modal annual rainfall pattern, with highest burdens around the middle of the rainy
season. In both sheep and goats there were significant differences in the mean worm burdens and abundance of the different
nematode species between the four geographic locations, with worm burdens in the Haramaya and Harar areas greater than those
observed in the Dire Dawa and Jijiga locations. Similar seasonal variations were also observed in the prevalence of flukes.
But there were no significant differences in the prevalence of each fluke species between the four locations. Overall, the
results showed that Haemonchus, Trichostrongylus, Nematodirus, Oesophagostomum, Fasciola and Paramphistomum species were the most abundant helminth parasites of sheep and goats in eastern Ethiopia. 相似文献
13.
Tropical Animal Health and Production - 相似文献
14.
Rassnick KM Gieger TL Williams LE Ruslander DM Northrup NC Kristal O Myers NC Moore AS 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2001,15(3):196-199
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
15.
H Hayashi T Yoshimura J Y Chen 《Comparative immunology, microbiology and infectious diseases》1985,8(2):73-87
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
16.
Davis MS Willard MD Nelson SL Mandsager RE McKiernan BS Mansell JK Lehenbauer TW 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(3):311-314
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
17.
Furosemide continuous rate infusion in the horse: evaluation of enhanced efficacy and reduced side effects 总被引：1，自引：0，他引：1
Johansson AM Gardner SY Levine JF Papich MG LaFevers DH Fuquay LR Reagan VH Atkins CE 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):887-895
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
18.
B. Cinar Kul N. Bilgen J.A. Lenstra O. Korkmaz Agaoglu B. Akyuz O. Ertugrul 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2015,132(6):449-453
Genetic variations in chromosome Y are enabling researchers to identify paternal lineages, which are informative for introgressions and migrations. In this study, the male‐specific region markers, sex‐determining region‐Y (SRY), amelogenin (AMELY) and zinc finger (ZFY) were analysed in seven Turkish native goat breeds, Angora, Kilis, Hair, Honaml?, Norduz, Gürcü and Abaza. A SNP in the ZFY gene defined a new haplotype Y2C. All domestic haplogroups originate from Capra aegagrus, while the finding of Y1A, Y1B, Y2A and Y2C in 32, 4, 126 and 2 Turkish domestic goats, respectively, appears to indicate a predomestic origin of the major haplotypes. The occurrence of four haplotypes in the Hair goat and, in contrast, a frequency of 96% of Y1A in the Kilis breed illustrate that Y‐chromosomal variants have a more breed‐dependent distribution than mitochondrial or autosomal DNA. This probably reflects male founder effects, but a role in adaptation cannot be excluded. 相似文献
19.
Ling GV Thurmond MC Choi YK Franti CE Ruby AL Johnson DL 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):817-823
The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors. 相似文献
20.
<正>1.INTRODUCTION Ensuring transportation network security is one Of the most daunting challenges confronting homeland security agencies today.Significant research has been dedicated.To model and analyze the vulnerability of transportation systems,while notably fewer studies propose specific strategies for deploying defensive technologies to safeguard these systems. 相似文献