禽霍乱病的诊断及治疗

张某于2006年6月15日在当地购进肉鸡雏2000支,7月14日(40日龄)发病,前来就诊。1主诉从进雏到7月13日鸡长的很好,14日下午发现精神不好、减食、饮水增加,拉黄绿便,出现死亡,鸡冠发紫,一个上午就死20只,张某拿一只死鸡一只活鸡前来解剖。2剖检变化病鸡外观肛门被黄绿粪便粘满,鸡冠发紫,剖开内脏,腹部脂肪有多量针尖大小出血点、心冠脂肪出血点明显,肝肿大,表面有白色坏死点多量,十二指肠出血,疑似禽霍乱(巴氏杆菌病)立即用肝片用美兰染色,显微镜下见到两个染色的卵圆杆菌。根据临床症状、剖检、化验、综合判断为禽霍乱(巴氏杆菌病)。3处理意见…     

异学鸡粪与常见鸡病的关系

白色稀便与鸡白痢、禽霍乱:当鸡粪为白色糊状不成形时,一般可能是发生鸡白痢或禽霍乱病.鸡白痢发病高峰期多为7-14月龄.典型的症状是拉白色糊状如浓稠石灰乳状的粪便(摪琢),此种粪便一排出即凝固为石灰石状物,堵塞肛门,小鸡常因全身性败血症而大批死亡.白色稀粪便的另一可能疾病是禽霍乱,一般是在成年鸡群中发生.其病原为多杀性巴氏杆菌,病鸡常有剧烈腹泻.排灰白色粪便.     

一起禽巴氏杆菌病的诊治报告

禽巴氏杆菌病又称禽霍乱,是由多杀性巴氏杆菌引起的禽的急性、出血性、败血性、接触性传染病。在流行病学调查和临床诊断工作中发现,该病目前在养禽业中零星散发,一旦发病,给养禽业带来一定经济损失。本文介绍了一起禽巴氏杆菌病,主要表现鸡冠发紫,排白色稀粪,急性死亡等症状,通过发病情况、剖检病变、实验室诊断等手段综合分析后进行确诊,并采取针对性措施,病情得到有效控制。     

鸡巴氏杆菌病的流行病学、临床症状、剖检变化、实验室诊断与防控措施

鸡巴氏杆菌病也叫做鸡出血性败血症、禽霍乱,是由于感染多杀性巴氏杆菌而发生的一种接触性传染病。急性型主要是突然出现发病,表现出败血症、下痢症状;慢性型主要是肉髯、鸡冠发生水肿,并伴发关节炎。在气候突变、鸡群饲养管理不当以及机体抵抗力下降时就会诱发该病。大部分国家都可出现发病,且病菌强毒株可导致年龄不同的育成鸡和成年鸡全部感染发病,病死率超过60%,造成巨大的经济损失。现概述该病的防控措施。     

鸡巴氏杆菌病的诊治

鸡巴氏杆菌病是由禽多杀性巴氏杆菌引起的鸡的一种接触性传染病,主要危害较大日龄的产蛋禽.发病特征为突然发病,病程短,以败血症为主要特征.《动物防疫法》规定禽霍乱属二类疫病.本文介绍了一例鸡巴氏杆菌病的诊断和防治过程及体会,为禽生产工作者提供参考.     

禽巴氏杆菌病的综合防治

禽巴氏杆菌病又叫禽出血性败血症,是由多杀性巴氏杆菌引起鸡、鸭、鹅和火鸡的一种急性、热性、败血性传染病,以秋、冬两季为发病高峰期,病死率高达85%以上,本病特征为突然发病,下痢,出现急性败血病而骤死,是威胁我县农村养禽业的主要禽病之一,为此,必须及时有效地防治禽巴氏杆菌病。     

禽霍乱及其防治

禽霍乱又名禽巴氏杆菌病,是各种家禽的急性败血性传染病。急性型突然发病、下痢,出现急性败血症症状;慢性型以鸡冠、肉髯水肿和关节炎为特征。     

禽霍乱的诊疗体会

禽霍乱或称禽巴氏杆菌病、禽出血性败血症，是由多杀性巴氏杆菌引起的主要侵害鸡、鸭、鹅、火鸡等禽类的一种接触性传染病。该病以发病急、病程短、死亡快为主要特征，死前往往无明显症状。     

一例鸡巴氏杆菌病的诊治

禽巴氏杆菌病,也称禽霍乱,禽出血性败血症,是由巴氏杆菌引起的一种急性败血性传染病,鸡、鸭、鹅均可共患,其病原为多杀性巴氏杆菌.     

禽巴氏杆菌病防治浅析

<正>禽巴氏杆菌病也称禽霍乱或禽出血性败血症,简称禽出败,是由多杀性巴氏杆菌引起的接触性传染病,临床主要特征是发病急、持续时间长、出现急性败血症等。该病流行快、死亡率高,给养禽业造成较大的损失,为此,本文对该病的病原及临床诊断、防治措施进行浅析。1病原多杀性巴氏杆菌为球杆状或短杆状菌,两端钝圆。单个存在,有时成双排列。病料涂片用瑞氏染色或美蓝染色时,可见典型的两极着色,及     

商会自治的基石——商会自治规范研究

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。     

癸氧喹酯干混悬剂含量测定的改进

采用高效液相色谱法测定癸氧喹酯干混悬剂的含量,在2-250μg/mL范围内,峰面积的常用对数与进样量浓度的常用对数呈良好的线性关系,R^2=1(n=5),平均回收率为99.24%~99.51%,RSD在0.05%~0.28%。此方法分析时间短,样品前处理简便、定量结果准确,重现性好,结果满意,为其质量控制提供了依据。     

猪毛色遗传的研究进展

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。     

Comparison of 2 methods of centesis of the bursa of the biceps brachii tendon of horses

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.     

不同样本商品蜂蜜中硒含量的测定

用硝酸和高氯酸消化蜂蜜,使硒游离出来,在微酸性环境下,硒和2,3-二氨基萘(DAN)生成有较强荧光的物质,用环己烷萃取,在激发波长378nm,荧光波长518nm处测定其荧光强度。蜂蜜中硒含量范围:0.10～0.82μg/g。表明:蜂蜜应视为天然富硒营养品。     

乳酸杆菌益生作用机制的研究进展

乳酸杆菌作为益生菌广泛用于人和动物。本文综述了乳酸杆菌改善宿主健康的机制。乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道。文章重点讨论了乳酸杆菌表面成分（表面蛋白、脂磷壁酸和肽聚糖）与肠道受体（Ｃ型凝集素受体、Ｔｏｌｌ样受体和 Ｎｏｄ样受体）,阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制。     

中华人民共和国农业部公告 第267号

为贯彻落实《兽药生产质量管理规范》(简称《兽药GMP》),进一步推动兽药GMP实施进程,我部制定了《兽药生产质量管理规范检查验收办法》,现予公告。本公告自2003年6月1日起施行。附件:兽药生产质量管理规范检查验收办法二○○三年四月十日第一章 总则 第一条 为推动《兽药生产质量管理规范》(以下简称兽药GMP)的实施,规范兽药GMP检查验收工作,制定本办法。 第二条 农业部负责全国兽药GMP管理和检查验收工作;负责制修订兽药GMP检查验收管理规定;负责兽药GMP检查员队伍建设和监督管理工作,负责国际兽药贸易中GMP互认工作。 …     

鸡败血支原体垂直传播模式及其阻断方法

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。     

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.