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猪传染性胃肠炎临床诊断及防治 总被引：1，自引：0，他引：1
猪传染性胃肠炎是由猪传染性胃肠炎病毒引起的急性高度接触性肠道传染病,临床上以腹泻、呕吐和脱水为特征,各种年龄的猪都可发病,对哺乳仔猪的危害最严重.然而以腹泻为主症的还有猪痢疾、仔猪黄痢、仔猪白痢、仔猪红痢(梭菌性肠炎)、流行性腹泻、轮状病毒感染、仔猪副伤寒等7种疫病,为了更有效地防控猪传染性胃肠炎,做到早诊断、早治疗.论文阐述了猪传染性胃肠炎与猪其他7种腹泻疫病的临床症状的区别及猪传染性胃肠炎的防治要点. 相似文献
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一、仔猪腹泻流行新特点(一)引起仔猪腹泻的疫病种类多1.细菌性疫病。主要包括仔猪黄痢、仔猪白痢、仔猪红痢、猪副伤寒、猪痢疾。2.病毒性疫病。主要包括猪流行性腹泻、传染性胃肠炎、轮状病毒感染、猪瘟、伪狂犬病、猪繁殖与呼吸综合征、猪圆环病毒病。3.寄生虫性疫病。主要是猪球虫病。(二)病原常呈混合感染,临床疫情复杂,影响诊断或引起诊断误差例如:传染性胃肠炎+猪流行性腹泻;传染性胃肠炎+猪流行性 相似文献
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正随着冬天的来临,气温下降。河北辛集市多个养猪场发生以水样腹泻,呕吐、脱水和新生仔猪高病死率为症状的传染病。笔者根据临床症状分析为猪传染性胃肠炎和流行性腹泻混合感染所致。猪传染性胃肠炎和流行性腹泻是猪的一种高度接触性、消化道传染病。以呕吐、水样腹泻、和脱水为特征。猪传染性胃肠炎和流行性腹泻在临床方面无显著差别,只是猪传染性胃肠炎比猪流行性腹泻病死率 相似文献
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在兽医临床上,仔猪表现有腹泻症状的疫病主要有猪传染性胃肠炎、猪流行性腹泻、猪轮状病毒病、仔猪白痢、仔猪黄痢、仔猪红痢、仔猪刚伤寒、猪痢疾。这几种疫病在鉴别上容易混淆,笔者根据多年工作的经验,浅述其诊断要点。1观察粪便作出初步诊断仔猪副伤寒：含有坏死组织纤维状物的稀粪。猪痢疾：血性粘液下钢。猪轮状病毒病：黄白暗黑色水样或糊状稀粪。仔猪白痢：白色糊状稀粪。仔猪黄痢：黄色糊状稀粪。仔猪红痢：红色粘性稀粪。猪传染性胃肠炎：灰色或黄色水样稀粪,传播快。猪流行性腹泻：同传染性胃肠炎,但传播慢。2临床诊断要点：… 相似文献
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猪病毒性腹泻疾病主要包括猪传染性胃肠炎、猪流行性腹泻和猪轮状病毒感染3种。本病以冬春寒冷季节多发,对仔猪的危害较大。近年来,猪病毒性腹泻疾病的发生与流行日益增多,是目前仔猪生长受阻和高死亡率的主要原因之一,给我国养猪业造成了巨大的经济损失。本文通过对猪传染性胃肠炎、猪流行性腹泻和猪轮状病毒感染3种猪病毒性腹泻疾病的病原、流行病学、临床症状和病理变化的对比,为兽医工作人员提出行之有效的诊断依据和综合防治措施,以提高对本病的防治水平。 相似文献
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<正>1流行情况去年冬季到现在,陕西及周边区域的养猪场疾病流行主要以传染性胃肠炎和流行性腹泻、副猪嗜血杆菌病、传染性胸膜肺炎、链球菌病的发病为主。1.1传染性胃肠炎和流行性腹泻流行情况猪传染性胃肠炎为冠状病毒;猪流行性腹泻为类冠状病毒。这两种病主要以呕吐、严重的腹泻为主要症状,造成仔猪严重脱水而后死亡的疾病。传染性胃肠炎和流行性腹泻近3年来成为威胁全球仔猪保育的疾病,使仔猪保育率下降10%~50%,成为种猪场和仔猪繁育场威胁最大的疾病之一。我省 相似文献
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正猪流行性腹泻是由猪流行性腹泻病毒引起的消化道疾病,具有急性、接触性、高度传染性;以哺乳仔猪、断奶仔猪和育肥猪发病率最高,主要症状为呕吐、水样腹泻和脱水,其中,以哺乳仔猪受害最为严重。猪流行性腹泻(PED)与猪传染性胃肠炎(TGE)、猪轮状病毒病是目前危害我国猪群最严重的三种病毒性腹泻病,临床症状都是以腹泻为主,很难区分。本研究以河南某暴发仔猪腹泻的猪场为例,分析猪流行性腹泻病毒(PEDV) 相似文献
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农业部《关于进一步加强动物疫病防治工作的紧急通知》传达后,各地密切注视冠状病毒科病毒所引起的动物疫病,对已发现疫病进行早诊断、早预防、早治疗、早控制。经临床验证,猪白细胞干扰素系广谱抗病毒生物药品,对猪传染性胃肠炎、猪流行性腹泻等病毒疫病治愈率高,疗效显著,值得推广。 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