Clinical features associated with seroconversion to Anaplasma marginale, Babesia bigemina and Theileria parva infections in African cattle under natural tick challenge   总被引：2，自引：1，他引：1  

Magona JW  Walubengo J  Olaho-Mukani W  Jonsson NN  Welburn SC  Eisler MC 《Veterinary parasitology》2008,155(3-4):273-280

A longitudinal study was conducted in Southeast Uganda for 14 months on 640 Zebu cattle kept under natural tick challenge, with a view to identifying clinical features for prediction of seroconversion to Anaplasma marginale, Babesia bigemina and Theileria parva infections. Physical examination, condition scoring and tick counts were undertaken on all cattle every 4 weeks. In addition, 5300 sera were collected and analysed for antibodies against A. marginale, B. bigemina and T. parva infections using the enzyme-linked immunosorbent assay (ELISA). The major clinical features compiled included weight loss, fever (rectal temperature), anaemia (packed cell volume), pallor of mucous membranes, lymph node enlargement, staring coat, diarrhoea and lacrymation. The risk factors included tick challenge at village level, sex, age, Rhipicephalus spp. density and Boophilus spp. density on individual animals. Using a binary logistic regression model, the clinical features and risk factors were analysed. The results suggest that increasing rectal temperature was associated with increased probability for seroconversion to A. marginale, while high level of Rhipicephalus spp. density and increasing packed cell volume (PCV) were significantly associated with reduced probability of seroconversion. Although statistically significant, none of the factors had large effects, with odds ratios (OR) of 0.87, 1.15 and 0.98 for Rhipicephalus spp. density, rectal temperature and PCV, respectively. For B. bigemina infection, a high level of Boophilus spp. density, anaemia and staring coat were significantly associated with increased probability of seroconversion (OR 1.50, 1.78, 1.37, respectively). Presence of lacrymation and old age were associated with reduced probability of seroconversion (OR 0.52, 0.86 respectively). For T. parva infection, lymph node enlargement (OR 1.30) was associated with increased probability of seroconversion, while high Rhipicephalus spp. density and increasing packed cell volume (PCV) were associated with reduced probability of seroconversion (OR 0.68 and 0.98, respectively). In conclusion, presence and intensity of the respective tick vectors for tick-borne diseases, age and clinical features such as anaemia, fever, staring coat, lymph node enlargement and lacrymation are indicators for seroconversion to A. marginale, B. bigemina and T. parva infections in cattle. These indicators for seroconversion could be exploited in the development of decision support tools for clinical diagnosis of tick-borne diseases.  相似文献   

Vegetative Endocarditis in Equids (1994–2006)     

S.R. Porter  C. Saegerman  G. Van Galen  C. Sandersen  C. Delguste  H. Guyot  H. Amory 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2008,22(6):1411-1416

Background: Endocarditis is a rare heart condition with variable clinical expressions in equids. Risk factors for this disease are incompletely understood. Objective: Describe risk factors for endocarditis in equids. Animals: One hundred and fifty‐three equids admitted to Liège University, 9 diagnosed with endocarditis and 144 free from endocarditis but admitted to the hospital with a differential diagnosis including this disease. Methods: Retrospective case‐control study. Results: Equids with endocarditis were significantly younger (mean age = 4.84 ± 5.74 years) than control equids (mean age = 10.8 ± 7.73 years) (P= .01). No sex or breed predisposition was observed. Animals with hyperthermia (odds ratio [OR] = 24.4; confidence interval [CI] = 1.40–428), synovial distension (OR = 13.4; CI = 3.00–59.8), lameness (OR = 6.52; CI = 1.63–26.1), hyperglobulinemia (OR = 26.4; CI = 3.03–229), hypoalbuminemia (OR = 11.4; CI = 1.34–96.8), hyperfibrinogenemia (OR = 9.81; CI = 1.16–82.7), or leukocytosis (OR = 7.12; CI = 1.40–36.4) presented a significantly higher risk of having endocarditis than control horses. The presence of two of the clinical signs mentioned above significantly increased the probability of a diagnosis of endocarditis (P≤ .05). Conclusions and Clinical Importance: Age is associated with equine endocarditis. The diagnostic value of certain clinical signs and abnormalities in blood parameters in this disease are described.  相似文献   

Hematologic, biochemical, and protein electrophoretic values in captive tawny owls (Strix aluco)     

Spagnolo V  Crippa V  Marzia A  Alberti I  Sartorelli P 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2008,37(2):225-228

BACKGROUND: The tawny owl (Strix aluco) is a protected species in Italy. Orphaned, injured, and ill owls often are sheltered and treated in rehabilitation centers, where hematologic and biochemical analyses would be helpful to evaluate and monitor the status of their health. OBJECTIVES: The major aim of this work was to assess hematologic and biochemical constituents together with protein electrophoretic fractions in healthy tawny owls. In addition, we compared laboratory methods for determining hemoglobin (Hgb), total protein, and albumin concentrations. METHODS: Heparinized blood samples were collected from 10 clinically healthy adult captive tawny owls between March 2001 and November 2003 for CBC, routine biochemical analysis, and protein electrophoresis. Alternate methods for Hgb (estimation as HCT/3 vs spectrophotometry), total protein (biuret vs refractometry), and albumin (bromcresol green vs electrophoresis) concentrations were compared in 34 samples from 16 unhealthy adult owls and 8 nestlings. RESULTS: Results were reported as mean, median, and range (minimum-maximum). Significant differences and poor concordance were observed between methods for Hgb, total protein, and albumin. CONCLUSIONS: Hematologic and plasma biochemical values in captive tawny owls may be useful in evaluating and monitoring the health of this species in captivity.  相似文献   

兽医临床实例训练课程教学与考核模式的探索     

冯士彬  王希春  李锦春  刘亚  韩春杨  李玉  徐前明  吴金节 《畜牧与饲料科学》2019,40(9):100-104

兽医临床实例训练是安徽农业大学动物医学专业近几年新开设的一门实践课程。该课程以学校动物医院为实践平台,以提高学生的动手操作技能,增强临床实践能力,培养学生的临床思维能力和初步职业素质为目标,通过在教学过程中不断地实践和完善,探索出一套合理的、先进的教学与考核模式。该模式取得了明显的教学效果,为兽医临床实践教学改革提供了新思维和新方法。  相似文献   

多种植物活性物质混配剂对瓜类白粉病病菌毒力测定和药效试验     

吾建祥  周小军  凌士鹏  杨德毅  万梨芳 《蔬菜》2018,(2):50-54

为了利用植物资源中所具有的杀虫、杀菌、抗病毒和除草等特性的天然活性物质,达到不破坏生态环境、延缓靶标生物抗药性的目的,从黄柏皮、大黄、松脂、芦荟、皂角、苦楝根等多种植物中提取活性物质并混配加工成水剂,对黄瓜白粉病病菌进行毒力测定,并研究了黄瓜、南瓜、西瓜白粉病田间药效试验及安全性评价。结果表明:多种植物活性物质混配剂对黄瓜白粉病的侵染有较强抑制作用,其抑制活性EC_(50)值为5.981 7;对黄瓜、南瓜、西瓜白粉病的防效随着使用浓度的增加而增强,稀释400倍对黄瓜、南瓜和西瓜白粉病的防效分别达75.8%、76.7%和78.1%,施用后对以上瓜类生长安全。  相似文献   

ISOXAZOLINES     

Peter A. Sojka 《Journal of Exotic Pet Medicine》2018,27(2):118-122

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三黄白术片对人工感染鸡传染性法氏囊病的疗效     

胡功政  刘冰宏 《中国兽药杂志》1999,33(1):16-19

３组１６日龄小鸡人工感染以鸡传染性法氏囊病（ＩＢＤ）病毒,４８ｈ后出现临床症状,分别内服三黄白术片,剂量分别为０．３７５ｇ,０．２５ｇ和０．１２５ｇ,每日２次,连服５日,随后的１０日内,治疗组分别死亡１３．３％（４／３０）、１６．７％（５／３０）和４０％（１２／３０）,而未治疗的对照组死亡５３．３％（１６／３０）。在相对增重上,治疗组分别为７３．９％、７０．１％和７１．１％,而未治疗对照组为２５．８％。  相似文献   

药物防治的临床药理学与水产药物学问题   总被引：18，自引：0，他引：18  

潘连德  陈辉 《水产科技情报》1998,25(4):169-173

阐述了影响水产养殖中药物防治效果的临床药理学的几个重要参数和水产药物学在药物制剂、给药方案、治疗药物的检测和治疗效果等方面存在的问题,及其给水产养殖动物造成的不良后果。并提出了正确用药的原则和方法。  相似文献   

不同药剂、不同药械防除小麦田杂草田间药效对比试验     

张祥 《现代农业科技》2024,(11)

作者简介:张祥,男,1977年生,安徽六安人,高级农艺师,本科学历,从事种子农药管理和农业执法工作,邮箱:14025035@qq.com。  相似文献   

30%螺螨磺酯?阿维菌素可分散油悬浮剂的配方及生物活性          下载免费PDF全文

徐姗姗  鞠光秀  许良忠 《农学学报》2016,6(9):37-41

测试了不同复配比例的螺螨磺酯、阿维菌素对二斑叶螨的毒力,确定最佳药效的原药比例;通过对乳化剂、增效剂的筛选,获得了30%螺螨磺酯?阿维菌素可分散油悬浮剂(OD)的最优配方;测试了其对苹果二斑叶螨、柑橘红蜘蛛的田间防效。30%螺螨磺酯?阿维菌素OD的配方组成为：螺螨磺酯27%、阿维菌素3%、YUS FS3000 4%、601# 5%、T-20 7%、有机膨润土2%、GY-T0304 0.4%、油酸甲酯补足至100%,其各项性能符合可分散油悬浮剂的要求,田间药效试验表明其对二斑叶螨和柑橘红蜘蛛的防效优于对照药剂30%螺螨酯.阿维菌素OD,并且持效期长,具有良好的开发前景。  相似文献