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动物宰前、宰后旋毛虫病的检验 总被引：1，自引：0，他引：1
动物旋毛虫病是由旋毛虫引起的人畜共患病。成虫（肠旋毛虫）寄生在哺乳动物的肠内，幼虫（肌旋毛虫）寄生在肌肉组织中且形成包囊，猪、狗等多种动物易感。目前因为屠宰生猪来源广泛，品种繁多，使得旋毛虫的检出率明显提高，狗肉中旋毛虫的检出率也高达20％～50％。本病对人体的危害较大，严重时肌肉旋毛虫病可致人死亡，因此肉品检验将其列为重点检验项目。 相似文献
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旋毛虫病检验是生猪屠宰检疫中一项重要的内容。通过该项检验可以检出由旋毛线虫引起的人畜共患寄生虫病的猪只。防止因烹饪处理不当而进食受感染引起旋毛虫病。本病对人体健康危害很大,严重时可并发心肌炎、肺炎、脑膜炎等症而导致生命危险。旋毛虫病对人体的致病作用危害大于动物。因此,生猪宰后对肌肉旋毛虫的检验十分重要,是我国长期以来兽医卫生、动物防疫检疫工作的重点之一。开展旋毛虫病检验工作,有必要了解旋毛虫的来源、形态特征与生活史,利于鉴别、判定,从而迅速作出处理意见。对于杜绝病害肉流入市场,有着重要的作用。１… 相似文献
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随着人民生活水平的提高，人们对肉品卫生安全和身体健康甚为关注。猪的旋毛虫病是一种人畜共患寄生虫病，严重危害人畜健康。旋毛虫病的宿主是猪和犬，旋毛虫猪肉是人旋毛虫的重要传染来源。旋毛虫猪肉快速检验是防止旋毛虫病既经济又可靠的办法，现介绍几种检验方法，供参考。 相似文献
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旋毛虫各隔离种的感染性和分布规律的研究 总被引：1，自引：0，他引：1
旋毛虫病(Trichinellosis)是由旋毛虫寄生于宿主体内而引起的一种重要的人兽共患寄生虫病,对人和家畜健康危害很大.成虫寄生于肠腔,称为肠型旋毛虫;幼虫寄生于同一动物的横纹肌内,称为肌型旋毛虫.其主要的宿主动物是猪、犬、猫、鼠类、狐狸、野猪及人等.由于人食入含有幼虫包囊的生猪肉而感染旋毛虫病,可使人死亡,因此旋毛虫病原检测在肉品卫生检验上特别重要. 相似文献
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<正>猪的旋毛虫病是由旋毛形虫的幼虫,寄生于猪的横纹肌内而引起的一种寄生虫病。本病属人畜共患病,严重时可致人死亡,给养殖业和人体健康带来了极大危害。因此,旋毛虫的检验近年来越来越重要。现将一屠宰猪旋毛虫病例报告如下:1基本情况2012年12月,柳州市郊某县一屠宰厂在交易 相似文献
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旋毛虫病是一种具有广泛宿主域的人畜共患寄生虫病,在世界各地广泛流行,危害甚大。不仅对养猪业造成巨大的经济损失,而且严重威胁着人体健康。在我国,最早于1881年在厦门发现猪感染旋毛虫病,以后在福建、东北、云南,贵阳、甘肃等地发现旋毛虫感染。河南省南阳地区在全国是旋毛虫病严重流行区,1981年猪的旋毛虫检出率是 相似文献
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旋毛虫病是人畜共患的严重寄生虫病之一,对人危害极大,最易感的动物是猪和鼠,其它动物如狗、狼、猫等哺乳动物和人吃了生的或未煮熟的含肌旋毛虫的肉均可感染,严重时可导致死亡,给养殖业和人体健康带来了极大危害。尤其近几年来,人们生活水平提高、肉食量增加,而肉类的食用方法多样化,致使本病的发生有增加趋势。因此,猪旋毛虫病历来是法定的检疫项目。1病原旋毛虫的首次发现是在1825年,定名为旋毛形线虫,后来又陆续发现几种。1996年第五次国际旋毛虫会议将旋毛虫分为5个种:旋毛形线虫、本地毛形线虫、尼氏毛形线虫、伪毛形线虫、布氏毛形线… 相似文献
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<正> 旋毛虫病是一种比较严重的人兽共患寄生病。目前已发现有60多种哺乳动物为其宿主,肉用动物中主要是狗和猪。关于人感染旋毛虫的事例,世界各国报道很多,对人的健康危害很大。近年来,我国发生人感染旋毛虫病的事例日益增多,地区范围也日益扩大。其中狗肉在旋毛虫对人的感染上具有重要的作用,据报道吉林省大安县(1975)、辽宁省抚顺市(1979)、吉林省舒兰县(1981)均因吃狗肉而发生人感染旋毛虫病。因此,对狗旋毛虫病必须引起重视。1983年我厂为生产出口狗肉,屠宰狗1000只,通过宰后旋毛虫检验,我们对吉林省部分地区狗感染旋毛虫病的感染情况进行了调查研究,现将其结果报道如下。 相似文献
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旋毛虫病(Trichinellasis)是一种人畜共患的寄生虫病。世界各国均有流行。我国于一八八一年从动物(猪)中首次检出。人体旋毛虫病是于一九六四年自西藏地区首次报道。 近年来,我国人、畜旋毛虫病的发病情况日趋严重。除云南、西藏边远地区多发之外,自75年以来,我们在吉林省(1975、1980)、辽宁省(1979)、黑龙江省(1980)以及河南省等地、先后确诊了人体感染旋毛虫病的事例廿余起,染病者200余例。证明我国内地城市“熟食地区”的居民也常有本病的发生。 我国屠宰猪群中,旋毛虫病的检出率,一般为0.1～0.2％左右,近年来有所增长,某些地区报道,检出率达2.0～7.0％。一九七九年五月,在“全国旋毛虫检验技术座谈会议”过程中,进行现场检验和一九八○年一月,作者所进行的调查、统计,证明河南省南阳地区某县社屠宰猪群,旋毛虫检出率高达50％左右。 多年来,在教学与生产实践中,遇到了很多有关旋毛虫的具体问题。为了解决这些问题,作者在对旋毛虫正常生活史进行了实验观察的基础上,着重地研究了旋毛虫包囊的形成、形态结构、存在位置以及旋毛虫的死亡转归等问题;研究了旋毛虫幼虫的“感染力”和肉眼对虫体的“可见度”、并对食肉卫生检验工作中的旋毛虫“目检法”评价的问题;研究了因吃羊肉引起人体旋毛虫病的病原问 相似文献
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猪旋毛虫病是一种严重的人畜共患寄生虫病，对人的危害很大．属国际检疫对象。猪旋毛虫病在国内外均有流行。国内云南、河南、湖北、黑龙江、吉林、辽宁、西藏、广西、四川等省、区均有人富感染发病，而贵州亦有该病流行。互．贵州猪施毛虫病的检验贵阳食品公司系统有贵州肉联厂和贵阳黔峰肉类食品加工厂屠宰生猪。肉联厂的宰猪量占90％以上，30多年来一直根据《四部规程》要求，开展旋毛虫检验工作。黔峰厂是个小型肉制品加工厂．生猪政策放开后才扩大生猪屠宰，数量不多，近年才开始进行旋毛虫检验。生猪派购政策时屠猪来自省内各地．政策… 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
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。 相似文献
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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。 相似文献
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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。 相似文献
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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. 相似文献
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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. 相似文献