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为了解犬钩端螺旋体病的临床特点和诊疗方法,对2017年10月至2018年7月在浙江大学动物医院确诊的16例钩端螺旋体病犬的发病和诊疗情况进行了回顾分析。PCR诊断钩端螺旋体免疫的公犬是高发群体,雨水较多的月份发病率高于雨水少的月份,由于周边地区金毛、贵宾和田园犬的保有量相对其他品种要高,故在患犬中占比较高。病初主要表现为呕吐、脱水、精神委靡、结膜潮红、食欲废绝等症状。临床检查发现血尿素氮、血肌酐、血磷等指标明显升高,白细胞不同程度升高,部分病例出现贫血。B超检查可见肾肿大、肾实质损伤。主要酸碱紊乱类型为代谢性酸中毒和呼吸性酸中毒,低钠血症最为常见,并发症有肝损伤、胰腺炎、肺炎等。 相似文献
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<正>钩端螺旋体病是由钩端螺旋体引起的一种分布广泛的人兽共患传染病。在我国不少地区,尤其南方感染率很高,但多数呈亚临床感染症状而不被觉察,只有感染黄疸出血型和犬型等致病性强的钩端螺旋体才呈现急性、亚急性临床发病。笔者在临床工作中遇到一起犬钩端螺旋体病,现报道如下。 相似文献
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钩端螺旋体病是一种犬类与多种动物感染钩端螺旋体所导致的自然疫源性疾病,同时也是一种人畜共患病。引发钩端螺旋体病的病原体是具备致病性的问号钩端螺旋体。犬类被感染后,由于感染的钩端螺旋体的血清型的不同,主要体现为两类不同的症状:一类是急性、致死性黄疸,体温上升、精神萎靡不振、呕吐、肌肉发痛、黄疸、口唇出现血性疱疹,牙龈与口腔黏膜出血,严重时病犬还会发生死亡;另一类是亚急性或慢性肾病,临床多体现为肾病症状,其他的内脏器官也易受到侵犯。人体在被钩端螺旋体感染后会出现螺旋体性黄疸,被叫作Weil氏病。当犬只发生钩端螺旋体病时,应立即进行诊断,同时采取一些必要的措施防范控制该病的扩散,保障犬只身体健康。 相似文献
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一、钩端螺旋体与犬钩端螺旋体病钩端螺旋体属有2个种,引起人和犬发病的是问号钩端螺旋体。钩端螺旋体病(简称钩体病)就是由致病性钩端螺旋体引起的一种重要的人犬共患传染病。该病原菌菌型复杂,目 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献