猪痢疾的诊治及防控措施

猪痢疾(SD)是由猪痢疾短螺旋体(曾被称为猪痢疾密螺旋体或猪痢疾蛇形螺旋体)引起的猪特有的一种主要感染生长育成猪,以消瘦、黏液性出血性结肠炎为主要特征的肠道传染病,过去也被称为猪痢疾密螺旋体病、血痢、黑痢或黏液出血性下痢等。病理学特征为卡他性、出血性、纤维素性或坏死性盲肠与结肠炎。它与称为猪结肠螺旋体病或猪肠道螺     

引进种猪发生猪痢疾的防控措施

猪痢疾(SD)是由猪痢疾密螺旋体(TH)引发的一种猪肠道传染病,主要特征为大肠黏膜发生黏液性、渗出性、出血性及坏死性炎症.猪群起初发生时以急性出血性下痢为主,随后为亚急性和慢性黏液性下痢.2000年3月,安龙县新安镇某猪场因引进种猪引发猪痢疾,笔者参与了对该病的净化工作,取得了良好效果,现报告如下.     

猪痢疾的防治

猪痢疾又称血痢、黑痢、黏液出血性下痢等,是由猪痢疾短螺旋体引起的猪特有的一种肠道传染病,以病猪消瘦、腹泻、黏液性或黏液出血性下痢为特征。病理学特征为卡他性、出血性、纤维性或坏死性盲肠与结肠炎。(一)流行特点不同年龄、品种的猪均易感染,以7～12周龄的幼猪发生最多,哺乳仔猪发病较少,不感染其他动物。病猪和带菌猪是该病     

猪痢疾的防治

猪痢疾是由猪痢疾密螺旋体引起的猪的一种肠道传染病,其发病特征是患猪大肠黏膜发生黏液性、渗出性、出血性及坏死性炎症。病初以急性出血性下痢为主,随后转为亚急性和慢性黏液性下痢。幼猪发病死亡率较高。     

浅谈猪痢疾防治

猪痢疾是由猪痢疾密螺旋体引起的一种以黏液性出血性下痢为特征肠道传染病。尽管死亡率低,但这种病发病率高,患猪生长缓慢,饲料转化效率降低,加上连续不断的药物开销,会给养猪业带来较大损失。本文根据该病的特征,寻求更多的防治方案,以降低养猪业的损失为目的。     

猪痢疾与附红细胞体混合感染的病例诊治

猪痢疾是由猪密螺旋体引起的一种特有的肠道传染病,临床以消瘦、腹泻或黏液性出血性下痢为特征。该病发病率高、发病快、死亡率高。     

猪痢疾与附红细胞体混合感染的病例诊治体会

猪痢疾是由猪密螺旋体引起的一种特有的肠道传染病,临床以消瘦、腹泻或黏液性出血性下痢为特征。该病发病率高、发病快、死亡率高。     

猪痢疾的综合防治

猪痢疾是猪的肠道传染病,在临床上表现为黏液性或黏液出血性下痢。 1病原 猪痢疾是猪痢疾密螺旋体与肠道内特定的厌氧菌相互作用的结果。     

猪痢疾与附红体细胞混合感染的诊治

猪痢疾是由猪密螺旋体引起的一种特有的肠道传染病．临床症状以消瘦、腹泻或黏液性出血性下痢为特征。该病发病率高、发病快、死亡率高。     

猪痢疾的防制措施

猪痢疾是由猪痢疾蛇形螺旋体（Serpulina hyodysenteriae）的一种微生物引起的猪肠道传染病。其特征为大肠黏膜发生黏液性,渗出性,出血性及坏死性炎症。最急性猪病例往往会突然死亡,猪群起初发生时精神稍差,食欲减少,粪便变软,表面附有条状黏液,以急性出血性下痢为主,随后以亚急性和慢性粘液性下痢所代替。     

Swine dysentery: the influence of dietary selenium on clinical and pathological effects of Treponema hyodysenteriae infection

Twenty-four conventionally reared pigs divided into 4 groups were fed a basic ration deficient in selenium. The following daily supplement of selenium was given per pig; Group 1: none, group 2: 0.2 mg, group 3: 0.4 mg and group 4: 0.8 mg. After 51 days all pigs were inoculated orally with a pure culture of Treponema hyodysenteriae, and subsequently observed for 26 days. Clinical signs of swine dysentery were seen in all 4 groups. Criteria such as morbidity rate, incubation time and weight gain showed that the non-supplemented pigs suffered more severely from swine dysentery than the supplemented ones. Best protection was found among the pigs given a daily supplement of 0.4 mg selenium, whereas a supplement of 0.8 mg had a negative influence on the resistance to swine dysentery. The results indicate that selenium plays a more complex role in mucosal defence mechanisms than hitherto anticipated.     

新生羔羊痢疾原因及防治

羔羊痢疾是新生羔羊群体中的常发病和高发病,属于急性毒血症和急性传染性疾病。临床上主要表现为剧烈腹泻,肠道严重溃烂。该种疾病主要危害7日龄内新生羔羊,随着年龄的增长,抵抗能力增强,羔羊痢疾的发生率呈现逐渐下降趋势。新生羔羊痢疾具有发病急、发病过程短、致死率高的特点,发生流行后如果不能及时诊断,及时采取措施进行防控,短时间内会造成大批量的羔羊死亡,给养殖场带来不可挽回的经济损失。该文主要论述新生羔羊痢疾的发病原因和防治措施,缩短发病周期,提高治疗效果。     

中药新制剂“菌痢消颗粒”对猪、鸡细菌性下痢

以人工复制细菌性下痢的猪、鸡为模型,采用不同剂量的菌痢消颗粒进行了疗效观察。从疗效来看,高、中剂量组的有效率显著高于阳性对照组（P≤0．05）。从治愈率来看,菌痢消颗粒高、中剂量组与低剂量组和阳性对照组差异显著（P≤0．05）,高、中剂量组治愈率差异不显著（P〉0．05）。结果表明,菌痢消颗粒能安全、有效地治疗猪、鸡细菌性下痢。     

敌菌净预防初生羔羊腹泻病的效果和治疗试验

针对高原牧区冬季初生羔羊腹泻病严重的实际，进行敌菌净药物预防、治疗试验。试验结果：预防、治疗效果明显，预防组成活率比对照组提高１５．４个百分点，治疗痊愈率达９０％。试验表明，敌菌净是目前防治初生羔羊腹泻的一种有效方法，可进行推广应用。     

中药复方制剂“冬痢净”对奶牛痢疾病的疗效研究

检测"冬痢净"中黄连的含量,对奶牛场病牛进行治疗,以抗生素为对照药对病牛进行治疗。结果表明:"冬痢净"中黄连约占0.0159%,病猪用药后平均一两天可以止泻,其临床总治愈率达82.76%,总有效率高达93.53%。     

猪痢疾检疫方法概述

猪痢疾是由致病性密螺旋体引起的一种猪肠道传染病,其特征为黏液性或黏液出血性下痢,大肠黏膜发生卡他性出血性炎症,有的发展为纤维素性坏死性炎症。目前,控制本病主要采取综合防制措施,所以,有必要对该病进行检疫,及早阻断病原传播。     

Cessation of clinical disease and spirochete shedding after tiamulin treatment in pigs experimentally infected with “Brachyspira hampsonii”

With the emergence of “Brachyspira hampsonii” associated with swine dysentery in North America, identification of effective treatments and interventions is a pressing need. Denagard® (tiamulin hydrogen fumarate) Liquid Concentrate 12.5% is approved in the United States for treatment of dysentery caused by Brachyspira hyodysenteriae at 0.006% in the water. In this study, the effectiveness of tiamulin in resolving clinical disease, eliminating viable spirochete shedding, and reducing neutrophilic colitis following infection with either “B. hampsonii” or B. hyodysenteriae was evaluated. Seventy-eight 7-week-old crossbred pigs were divided into three groups [sham-inoculated (n = 18), “B. hampsonii”-inoculated (n = 30), and B. hyodysenteriae-inoculated (n = 30)]. Each inoculum group was divided into three subgroups which received either 0.006% tiamulin, 0.018% tiamulin, or no medication. Both levels of tiamulin resolved clinical disease within 24 h of treatment initiation, eliminated spirochete shedding within 72 h of treatment initiation, and resolved and/or prevented histologic lesions in pigs infected with either Brachyspira spp.     

“Brachyspira hampsonii” clade I isolated from Belgian pigs imported to Germany

This report describes the detection of “Brachyspira (B.) hampsonii” clade I in Belgian pigs imported to Germany. Two of seventeen pigs from one herd were reported positive for Brachyspira hyodysenteriae by culture in a Belgian diagnostic laboratory, but negative for this Brachyspira species by specific PCR. In this study, from 22 fecal samples and 2 colon contents of these animals various Brachyspira species were cultured and identified by nox-RFLP as Brachyspira murdochii, Brachyspira innocens and Brachyspira intermedia. Albeit the six B. intermedia isolates proved to be negative in a species specific PCR. Sequencing of the nox-gene of three of these isolates revealed that the sequences were 99% identical to published sequences of “B. hampsonii” clade I. From one pig which was positive for “B. hampsonii” clade I histopathology was done and showed moderate lesions consistent with brachyspiral disease.     

验方治疗仔猪黄白痢

仔猪黄白痢是大肠杆菌引起的细菌性肠道疾病，是以仔猪拉黄色或白色稀粪为主要特征。该病一年四季都有发生，其发病率和死亡率较高，给养殖户带来了巨大的经济损失。为了寻找治疗仔猪黄白痢的特效治疗方法，通过民间走访和向老中兽医悉心请教，总结了一个治疗该病的特效处方，在280例的临床治疗中取得了较好的效果，就此提供给广大养殖业者以供参考。     

Diagnosis and gI antibody dynamics of pseudorabies virus in an intensive pig farm in Hei Longjiang Province

BackgroundPseudorabies (PR), caused by the pseudorabies virus (PRV), is an endemic disease in some regions of China. Although there are many reports on epidemiological investigations into pseudorabies, information on PRV gI antibody dynamics in one pig farm is sparse.ObjectivesTo diagnose PR and analyze the course of PR eradication in one pig farm.MethodsTen brains and 1,513 serum samples from different groups of pigs in a pig farm were collected to detect PRV gE gene and PRV gI antibody presence using real-time polymerase chain reaction and enzyme-linked immunosorbent assay, respectively.ResultsThe July 2015 results indicated that almost all brain samples were PRV gE gene positive, but PRV gI antibody results in the serum samples of the same piglets were all negative. In the boar herd, from October 2015 to July 2018 three positive individuals were culled in October 2015, and the negative status of the remaining boars was maintained in the following tests. In the sow herd, the PRV gI antibody positive rate was always more than 70% from October 2015 to October 2017; however, it decreased to 27% in January 2018 but increased to 40% and 52% in April and July 2018, respectively. The PRV gI antibody positive rate in 100-day pigs markedly decreased in October 2016 and was maintained at less than 30% in the following tests. For 150-day pigs, the PRV gI antibody positive rate decreased notably to 10% in April 2017 and maintained a negative status from July 2017. The positive trend of PRV gI antibody with an increase in pig age remarkably decreased in three tests in 2018.ConclusionsThe results indicate that serological testing is not sensitive in the early stage of a PRV infection and that gilt introduction is a risk factor for a PRV-negative pig farm. The data on PRV gI antibody dynamics can provide reference information for pig farms wanting to eradicate PR.