浅谈猪附红细胞体病

附红细胞体病最早发现于1928年,1950年确定为猪的附红细胞体病,我国于1981年首先在家兔中发现附红细胞体。1986年puntarie等正式描述了人类附红细胞体病。目前已有30多个国家和地区报告了附红细胞体的感染情况。附红细胞体的宿主范围广泛,已有鼠、犬、牛、绵羊、猪、猫、兔、山羊、马、驴、骡、鸡、骆驼、南美洲驼羊、北极驯鹿、银狐等动物及人感染附红细胞体的报道,其中猪感染附红细胞体最为严重,引起巨大的经济损失。     

浅谈猪附红细胞体病

附红细胞体病最早发现于1928年,1950年确定为猪的附红细胞体病,我国于1981年首先在家兔中发现附红细胞体。1986年puntarie等正式描述了人类附红细胞体病。目前已有30多个国家和地区报告了附红细胞体的感染情况。附红细胞体的宿主范围广泛,已有鼠、犬、牛、绵羊、猪、猫、兔、山羊、马、驴、骡、鸡、骆驼、南美洲驼羊、北极驯鹿、银狐等动物及人感染附红细胞体的报道,其中猪感染附红细胞体最为严重,引起巨大的经济损失。     

贵州省思南县牛附红细胞体病的诊断

附红细胞体病(Eperythrozoonosis)是由附红细胞体(Eperythrozoon)寄生于红细胞表面、血浆和骨髓而引起的一种高度传染性人畜共患传染病。该病又称为红皮病、黄疸性贫血、类边虫病、赤兽体病等,能感染猪、牛、马、羊、鸡、野生动物等多种动物和人类。由于附红细胞体既有原虫的某     

猪附红细胞体病诊治

附红细胞体病是由附红细胞体(嗜血支原体)寄生于人、猪等多种动物红细胞表面或血浆及骨髓中,引起的临床上以发热、贫血、黄疸为特征的一类人畜共患病。多种动物可感染,常感染猪、牛、羊、兔及鼠。猪附红细胞体病可发生于各日龄猪,但以架子猪多见。被感染的猪不能产生很强的免疫力,再次感染会随时发生。常呈零星散发,只有新发病区能形成地方性流行。     

牲畜附红细胞体病的诊治

附红细胞体病简称附红体病，是由附红细胞体寄生在红细胞表面、血浆和骨髓而引起的一种人畜共患的传染病。本病最初发现时病原性较弱，但50年代初，证明猪边虫样疾病是由附红细胞体引起以后，附红细胞体的病原性受到重视。尤其是近年来，随着牲畜附红细胞体病爆发和流行，以及与圆环病毒、高致病性蓝耳病的混合感染，对养猪业发展造成了严重危害，引起国内外专家学者的广泛关注。     

猪附红细胞体病的研究现状及展望

猪附红细胞体病(Eperythro-zoonosis)是由立克次氏体(Rickettsiorganism)之猪附红细胞体(Eperythrozoon suis)感染猪所引起的一种传染性血液病,附红细胞体寄生于人、猪多种动物的红细胞或血浆中属人畜共患病。国内外曾有人称之为黄疸性贫血,类边虫病,赤兽体病,或者红皮病等。主要侵害动物的红细胞和造血组织,主要表现为黄疸性贫血,发热、呼吸困难、虚弱、流产、腹泻等症状,但是不同动物感染附红细胞体后,其临床表现有很大差异。由于该病广泛分布于世界各地,具有多宿主感染性,并且危害逐年加大,已成为研究的热点和难点1病原学猪附红细胞体…     

猪附红细胞体病的综合诊治

猪附红细胞体病(Eperythrozoonosis Suis简称附红体病)并不是一种新病,早在1932年印度就有报道,但一直未受到注意.只是近几年,该病突然多了起来,在全国许多地区、猪场发生与流行,才引起了人们的重视.该病是由附红细胞体寄生于红细胞和血浆中而引起的一种传染性疾病,临床以发热、厌食、贫血、黄疸及四肢、耳尖和腹下出血为主要特征,易感动物有猪、牛、羊、猫和其他动物,在不同宿主中存在不同的虫种(如猪附红细胞体、羊附红细胞体).人也可感染附红细胞体.近年来猪附红细胞体病呈暴发流行的趋势,已成为危害养猪业的重要疾病之一.     

牛附红细胞体解离方法的比较

牛附红细胞体(E．wenyoni)一直被认为是致病性较弱的一种病原体，大多数呈亚临床感染。但近年来，牛附红细胞体病呈明显的蔓延趋势，尤其奶牛的感染情况严重，已给养牛业带来极大的经济损失。目前，对该病的病原生物学、免疫学研究还处于初级阶段。因此，建立一种较好的牛附红细胞体解离方法，可为牛附红细胞体病的病原学和免疫学等研究提供依据。     

山羊附红细胞体病的防治

<正>山羊附红细胞体病是由附红细胞体感染山羊所引起的一种传染性血液病。山羊附红细胞体病的病原是山羊附红细胞体,归类于立克次氏体属。少量的附红细胞体栖息在红细胞表面和血浆中,致病力低,一般呈隐性感染,在应激因素作用下,附红细胞体迅速增殖,侵入外周血液并破坏红细胞而发     

附红细胞体病及其混合感染的病例2则——病例一：黄牛附红细胞体病

牛附红细胞体病是牛附红细胞体之立克次氏体寄生于牛、羊、猪、人等多种动物细胞表面或血浆及骨髓中引起的一种溶血性传染病。其特征为高热、贫血、黄疸、消瘦。病原为一种寄生于血浆和红细胞的血液寄生虫。牛附红细胞体对干燥和化学药物抵抗力较弱．耐低温．一般常见消毒药均可将其杀灭。该病常发生于夏秋温暖季节．主要由蚊虫及吸血昆虫传播引起发病．寒冷季节较少发生。牛发病后如不及时治疗，会造成死亡，现将一起黄牛附红细胞体病的诊治情况介绍如下。     

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.