猪旋毛虫病检疫与防制措施

旋毛虫病是由毛首目、 毛形科的旋毛形线虫引起的一种人畜共患寄生虫病.猪旋毛虫病可对养猪业造成巨大的经济损失,并严重危害人体健康.本文介绍猪旋毛虫病的检疫与防制.     

猪旋毛虫病的检疫与防制

安阳市位于河南省最北部，是养猪业较发达的地区。1965年首次在生猪屠宰检疫中发现该病。从2000年至2004年上半年实施生猪定点屠宰，动物检疫人员在定点屠宰厂对97．75万头生猪实施的检疫中，检出旋毛虫病猪137头，其中95％是在外地调入猪群中检出。2003年6月8日从一批16头来自我市本地某猪场的猪中检出旋毛虫5头。说明在我市个别猪场已有该病流行。对此，我们采取防检结合的综合措施，加强对旋毛虫病的控制。     

旋毛虫病的发生与防制

沈阳市长生肉类有限责任公司是被沈阳市确定为市内唯一的生猪定点屠宰厂 ,由于精检细验 ,严把产品质量关 ,病害肉的检出率始终较高 ,这也说明我市周边地区的生猪饲养还存在许多问题 ,尤其是有些疾病尚未引起足够的重视 ,如旋毛虫病 ,其检出率曾高达0 1 6‰ ,这不仅给食肉安全带来隐患 ,也给养猪业户带来巨大的损失。 1 999年 1 0月 1 0日两业户共送宰 4 0头猪全部为旋毛虫病猪。这说明猪旋毛虫病有很强的感染性 ,应高度重视。旋毛虫病是由毛形科的旋毛虫的成虫寄生于小肠(肠旋毛虫 ) ,幼虫寄生于各部肌肉 (肌旋毛虫 )所引起的一种线虫病。…     

猪旋毛虫病及其检验方法

猪旋毛虫病及其检验方法马佐喜吴德茂田富森（青岛动植物检疫局２６６００２）旋毛虫病（Ｔｒｉｃｈｉｎｅｌｏｓｉｓ）是一种人、畜共患的严重寄生虫病，本病自１８３５年首次发现后，在世界各地陆续报道。目前仍呈世界性分布。它对人体健康和畜牧业的发展危害十分严重。...     

猪旋毛虫病的检疫和处理办法

本文就猪旋毛病的危害进行了具体的分析,介绍了其病原、宰前症状以及宰后检疫,提出了其处理办法,希望能够为养猪产业提供参考以及借鉴,在保证人们吃上真正安全放心肉的同时,促进我国养猪产业实现健康发展.     

猪大肠杆菌病的流行情况和防制措施

猪大肠杆菌病是由致病性大肠杆菌引起的一种仔猪肠道传染病,其病死亡率高,给养猪户造成较大损失.故本文对这几种主要的猪大肠杆菌病的流行特点,流行情况及防制措施进行了阐述.     

猪大肠杆菌病的流行情况和防制措施

猪大肠杆菌病是由致病性大肠杆菌引起的一种仔猪肠道传染病,其病死亡率高,给养猪户造成较大损失。故本文对这几种主要的猪大肠杆菌病的流行特点,流行情况及防制措施进行了阐述。     

一起旋毛虫病暴发流行的病例报告

一起旋毛虫病暴发流行的病例报告黄日侃陆玉西潘新莲黄文焕广西德保县卫生防疫站５３３７００中图分类号：Ｒ５３２１４１９９５年１月６日，我县隆桑镇下布村北站屯，发生一起旋毛虫病的暴发流行，发病５３人，死亡４人，是我地区第一次发生的病种，也是我区一次最大的...     

猪旋毛虫病的流行病学、检疫方法和防治措施

猪旋毛虫病是一种多见的自然感染疾病,肉食类、杂食类的动物以及人们都可感染发病.当猪感染后,往往会导致人们也感染发病,主要是由于食入未煮熟或者生的猪肉,或者肉品寄生有活的旋毛虫幼虫而患病.该病在全世界各地都可发生,不仅会严重损害养猪业、肉食品加工业以及外贸出口业的经济效益,还会严重危害人类健康.目前,该病已经在我国作为肉...     

Comparison of three methods for detection of prolonged experimental trichinellosis in pigs

Three methods were employed for the diagnosis of porcine trichinellosis. The pooled sample digestion method and trichinoscopy served as European Community (EC) reference techniques, whereas the reliability of the Enzyme Linked Immunosorbent Assay (ELISA) was tested by 11 laboratories of the European Community and Sweden. Three groups of 6 piglets each were orally inoculated with 50, 150 and 1500 Trichinella spiralis larvae into each animal. Another group of 6 animals served as a non-infected control. Animals were slaughtered and serum and muscle samples were collected at Weeks 4, 12 and 40. The material was mailed under code and examined in all participating laboratories. ELISA proved to be a sensitive technique. ELISA micro assay was the most sensitive procedure. Of the direct techniques the reference pooled sample digestion method was more sensitive than trichinoscopy. It was concluded that both micro and macro ELISA can be used with confidence for the detection of low grade, longstanding experimental T. spiralis infections in swine.     

Enhanced chemiluminescent enzyme immunoassay for the detection of trichinellosis antibodies in pigs.

A modified enhanced chemiluminescent enzyme assay (ECIA) was developed for mass screening of pigs for trichinellosis antibodies in abattoirs. Using Bionectics beads as solid support, the assay time could be reduced to 45 min. Optimal conditions for washing, blocking, incubation, concentration of serum, antigens and conjugates as well as timing of film exposure were determined. The sensitivity and specificity of the assay were found to be comparable to those of the triple antibody-IgG ELISA. The assay was tested in an abattoir and its efficacy was found to be satisfactory. However, the major disadvantage of the assay is the high cost of magnetic beads.     

高鸿宾:切实做好秋冬季重大动物疫病防控工作

9月13日,农业部在湖北省恩施市召开全国秋季重大动物疫病防控工作会议,同时举行全国突发重大动物疫情应急演练.农业部副部长高鸿宾出席大会并作重要讲话.他指出,今年以来,农业部和各级畜牧兽医部门按照中央统一决策部署,坚决贯彻落实中央确定的防控方针,加大防控力度,确保全国疫情形势继续保持总体平稳,全国没有暴发区域性重大动物疫情,没有发生重大动物产品质量安全事件.     

使用有机酸控制猪沙门氏菌

正养猪业正在努力降低猪舍中沙门氏菌的流行率,尤其是欧盟国家。控制该菌的方法有很多种,从卫生、消毒到营养途径等。在欧盟,降低猪群沙门氏菌流行率的压力正不断提高。而通过在饲料或饮水中添加有机酸的方法来降低猪沙门氏菌的感染水平是一种有效的手段。沙门氏菌病仍是全球最常见的食源性疾病之一。绝大多数沙门氏菌     

Superiority of the ELISA technique over parasitological methods for detection of trichinellosis in slaughtered pigs in Canada.

Trichinoscopic examination, pepsin-hydrogen chloride digestion and the ELISA assay were used in an epidemiological survey for the presence of Trichinella spiralis in slaughterhouse pigs over a period of 12 months. The first two methods failed to detect any cases of trichinellosis in sows aged between two to three years. The ELISA assay, however, detected a 2.5% prevalence amongst the 2046 blood specimens tested. Foci of T. spiralis are localized in certain regions only. The discrepancy between the results obtained is likely to be due to the low infection density, undetectable by conventional methods. It is postulated that pigs which are not confined indoors came in contact with the sylvatic strain of Trichinella which is known for low muscle invasiveness.     

猪传染性胸膜肺炎的流行和防制

1999— 2 0 0 0年 ,青海、海南、湖北、湖南的 4个规模化猪场分别发生猪疑似传染性胸膜肺炎 ,经流行病学调查、剖检变化、实验室诊断 ,确诊为由放线杆菌引起的猪传染性胸膜肺炎 ,经过防制疫病得到控制。1　发病情况1 .1　 1 999年春 ,青海省格尔木市某猪场饲养的1 0 0 0多头商品猪发病 ,发病率 40 %,死亡率 1 0 %。1 .2　 1 999年冬 ,海口市某猪场的 3 0 0多头猪发病 ,发病率 5 0 %,死亡率 5 %。1 .3　 2 0 0 0年春 ,湖北鄂州市某猪场 80 0多头猪发病 ,发病率 3 0 %,死亡率 8%。1 .4　 2 0 0 0年夏 ,湖南永州市某外贸猪场 6 0 0 0多头猪发病…     

Epidemiology and control of Menangle virus in pigs

OBJECTIVE: To describe the epidemiology and eradication of Menangle virus infection in pigs. DESIGN: Field observations and interventions, structured and unstructured serological surveys, prospective and cross-sectional serological studies and laboratory investigations. PROCEDURE: Serum samples were collected from pigs at a 2600-sow intensive piggery in New South Wales that experienced an outbreak of reproductive disease in 1997. Serum samples were also collected from piggeries that received pigs from or supplied pigs to the affected piggery and from other piggeries in Australia. Serum and tissue samples were collected from pigs at piggeries experiencing reproductive disease in New South Wales. Sera and faeces were collected from grey-headed flying foxes (Pteropus poliocephalus) in the region of the affected piggery. Serum samples were tested for neutralising antibodies against Menangle virus. Virus isolation was attempted from faeces. RESULTS: Following the outbreak of reproductive disease, sera from 96% of adult pigs at the affected piggery, including sows that produced affected litters, contained neutralising antibodies against Menangle virus. Neutralising antibodies were also detected in sera from 88% of finisher pigs at two piggeries receiving weaned pigs from the affected piggery. No evidence of Menangle virus infection was found in other piggeries in Australia. In cross-sectional studies at the affected piggery, colostral antibodies were undetectable in most pigs by 14 to 15 weeks of age. By slaughter age or entry to the breeding herd, 95% of pigs developed high antibody titres (> or = 128) against Menangle virus in the virus neutralisation test. Menangle virus was eradicated from the affected piggery following a program of serological testing and segregation. Neutralising antibodies against Menangle virus were also detected in P poliocephalus from two colonies in the vicinity of the affected piggery. Two piggery workers were infected with Menangle virus. There was no evidence of infection in cattle, sheep, birds, rodents, feral cats and a dog at the affected piggery. CONCLUSIONS: Serological evidence of infection with Menangle virus was detected in pigs at a piggery that had experienced reproductive disease, in pigs at two associated piggeries and in fruit bats in the region of the piggery. Two humans were infected. The mode of transmission between pigs is unknown, but spread by faecal or urinary excretion is postulated. This virus can be eradicated by the segregation of pigs into discrete age groups.     

猪弓形虫病的病理学诊断与防治

弓形虫病又称弓浆虫病或毒浆原虫病,是一种世界性分布的人兽共患的寄生性原虫病,在家畜和野生动物中广泛存在。我国很多地区均有猪、猫、人、兔和鼠等动物发病的报道。猪弓形虫病以3月龄左右的猪多见,呈高热稽留,呼吸系统和网状内皮系统受损害。该病发病急,传染性强,该病的发生     

当前我省肉仔鸡疫病的流行状况及其防治

由于肉仔鸡饲养密度大、环境卫生条件差，因此普遍存在着疫病多、死淘率高的现象，给养鸡户带来了巨大经济损失。如何有效的防治疾病，最大限度的减少禽病所带来的损失，已成为广大养鸡户最为关心的问题。根据我们对全省各地的实际调查及工作经验，现对我省肉仔鸡生产中危害最为严重的几种疫病作一简单介绍，以供养鸡户参考。１大肠杆菌病本病是目前肉仔鸡生产中危害最为严重的细菌性疾病，发病最为普遍。由于养鸡户大量使用各种抗菌药物进行防治，所以现在菌株均存在极强的耐药性，往往多种常用药物均无效。由于大肠杆菌是一种条件性致病菌…