猪衣原体病的研究进展

猪衣原体病是由衣原体引起的猪的一种接触性传染性病,在我国猪衣原体也叫鹦鹉热或称鸟疫,是由鹦鹉热衣原体所引起猪的一种接触性人畜共患性传染病。它引起猪肺炎、肠炎、心包炎、关节炎、睾丸炎、子宫感染和流产等多种病型。常因菌株毒理、猪性别、年龄、生理状况和环境因素的变化而出现不同症候群。本文从猪衣原体的病原学、分子生物学、发病机理、诊断方法等多方面探讨对猪衣原体病的研究。     

衣原体感染导致母猪繁殖障碍的诊治

猪衣原体病(SwineChlamydiosis)是由鹦鹉热亲衣原体(旧称鹦鹉热衣原体)的某些菌株引起的一种慢性接触性传染病,又称流行性流产、猪衣原体性流产.临诊上可表现为妊娠母猪流产、死产和产弱仔,新生仔猪肺炎、肠炎、胸膜炎、心包炎、关节炎,种公猪睾丸炎等.常因菌株毒力,猪性别、年龄、生理状况和环境的变化而出现不同的征候群.国外于20世纪60年代首先确认猪衣原体病,随后许多国家相继报道了该病.中国在20世纪80年代初,从羊流产和猪繁殖障碍病料中分离出鹦鹉热亲衣原体,从而证实中国动物衣原体病的存在.目前,在中国规模化养猪场,猪群存在有不同程度的衣原体感染,并时有发病和流行的报道.     

猪衣原体病及其防治

猪衣原体病又称鹦鹉热(Psittacosis)或鸟疫(Ornithosis),同义名:猪流行性流产,猪衣原体性流产,猪新立克次体性流产,仔猪衣原体性支气管肺炎。是由鹦鹉热衣原体引起的一种接触性传染病。以母猪的流产、死产、产弱仔,公猪的睾丸炎、尿道炎、龟头包皮炎,仔猪的支气管肺炎、肠炎、结膜炎、多关节炎、多浆膜炎以及中枢神经系统的病损为其主要     

猪衣原体病的临床诊治

猪衣原体病是由鹦鹉热衣原体引起的人畜共患传染病,又称为鹦鹉热或鸟疫。临床上有流产、肺炎、结膜炎、多发性关节炎、脑炎和睾丸炎等多种表现。     

猪衣原体病的临床诊治

猪衣原体病是由鹦鹉热衣原体引起的人畜共患传染病,又称为鹦鹉热或鸟疫。临床上有流产、肺炎、结膜炎、多发性关节炎、脑炎和睾丸炎等多种表现。     

猪衣原体病的有效防治方法

猪衣原体病也叫鹦鹉热或称鸟疫,是由鹦鹉热衣原体所引起猪的一种接触性人畜共患传染病。本病的主要特征为：结膜炎、肠炎、肺炎、多发性关节炎、脑炎,公猪睾九炎、母猪流产。     

猪衣原体病的有效防治方法

猪衣原体病也叫鹦鹉热或称鸟疫,是由鹦鹉热衣原体所引起猪的一种接触性人畜共患传染病。本病的主要特征为：结膜炎、肠炎、肺炎、多发性关节炎、脑炎,公猪睾九炎、母猪流产。     

青海省共和县绵羊衣原体病的血清学调查

衣原体病是由鹦鹉热衣原体（Chlamydia Psittaci）感染引起的羊、牛、人等多种动物共患的传染病,鹦鹉热衣原体属于衣原体科、衣原体属。广泛寄生于人类、鸟类、哺乳动物体内,它可引起不同种动物的多征后群疾病,临诊病理特征为流产、肺炎、肠炎、结膜炎、多发性关节炎和脑炎。该病又叫地方性流产病、衣原体性流产。近几年的研究结果表明,随着布氏杆菌病的基本控制,衣原体病和弓形虫病已成为造成牛羊流产的主要传染性因素。目前青海省对于该病的血清检测已在全省范围内广泛展开,对于检测结果各州都有报道,而本县未见此类报道。为此笔者于2013年5月份应用血凝抑制试验对本县牛羊中该病的感染情况进行了血清学调查,现将结果报告如下：     

宁夏地区部分规模化奶牛场衣原体和布病的血清学调查

衣原体病是由鹦鹉热衣原体引起的各种畜禽及人类共患的传染病。牛衣原体病是由鹦鹉热衣原体（Chlamydia psittaci）感染牛引起的一种多症状性传染病,主要表现为妊娠母牛流产、死产和产弱犊;新生牛多发生肺炎、肠炎、多发性关节炎、脑炎和结膜炎;种公牛发生睾丸炎等。     

猪衣原体病的有效防治方法

<正>猪衣原体病也叫鹦鹉热或称鸟疫,是由鹦鹉热衣原体所引起猪的一种接触性人畜共患性传染病。本病的主要特征为:结膜炎、肠炎、肺炎、多发性关节炎、脑炎,公猪睾丸炎、母猪流产。     

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。     

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.     

Mechanism of Action of Probiotic Function of Lactobacilli

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。 …