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发病情况我市海港区刘某,１９９８年３月购得成年小尾寒羊６０只,饲养到１９９９年７月已发展到２００多只,７月 １４日开始发病,至８月 １０日一共有３６只羊陆续发病,曾用青霉素、链霉素、抗病王医治无效,已死亡９只。故来我站就诊,被确诊为羊的肝片吸虫病,现报告如下： 临床症状发病急的羊,在发病初期表现体温升高,精神沉郁,食欲减少或不食,腹胀,偶有腹泻,粘膜苍白,在２－３天内死亡;发病慢的羊逐渐消瘦,粘膜苍白,被毛粗乱,颌下、胸腹部出现水肿,食欲减退,便秘和下痢交替发生。 剖检病变急性死亡的,肝肿大,肝包膜… 相似文献
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２００１年５月，我区化龙镇某种鸡场的后备种鸡突然发病，开始时未见任何临床症状，突然急性死亡，经诊断为鸡坏死性肠炎。现将诊治情况介绍如下。一、发病情况及临床症状发病鸡群为７５日龄的后备肉用穗麻种鸡，存栏量５０００只，分１０栏饲养。２０天前曾发生过球虫病，但已治愈。５月２０日有３栏突然发病，急性死亡。病鸡精神沉郁，羽毛松乱，食欲减退，闭目呆立；下痢，拉黄白色或黄绿色稀粪，病程１～２天。当天死亡１２只，次日死亡２７只，第３日死亡数上升到１００多只，即来我站就诊。二、剖检变化病死鸡营养中上。剖开的病死鸡… 相似文献
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<正> 内蒙古赤峰市巴林左旗白音沟乡一养殖户的绒山羊发生一种以高热、急性死亡为特征的传染性疾病,经临床检查、病理剖检以及实验室诊断,确诊为羊急性败血性链球菌病,报告如下。1 发病情况该户饲养绒山羊116只,其中有母羊66只,种公羊2只,1～2岁羊28只,7月龄羔羊20只,开始发病羊9只为7月龄羔羊,继而蔓延到1～2岁羊只。发病1～4天死亡,部分病羊无明显症状就死亡,共有31只发病。2 临床特征突然发病,体温高达41℃左右,精神不振、流泪、结膜充血,严重者口腔黏膜潮红,流涎,呼吸困难,流浆液性鼻液。2天内有部分羊出现跛行或不能站立,行走时后躯摇摆,有些羊出现磨牙、空嚼或昏睡等症状。有的羊只皮肤敏感,颈、背部皮肤广泛性充血、 相似文献
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鹿快疫的诊断与防制 总被引：1，自引：0，他引：1
1997年 7月中旬 ,我市某养鹿场 ,发生了一种急性传染病。该病发病急 ,病程短 ,突然死亡 ,真胃粘膜呈现出血性坏死性炎症。根据流行病学调查、临床特征、病理剖检、实验室诊断 ,确诊为鹿快疫 ,现报告如下。1 发病情况及临术症状 该鹿场于 1 998年初引进马鹿 6 0只 ,其中母鹿 45只 ,公鹿 1 5只 ,自繁仔鹿 2 0只 ,截止 1 999年1 0月 ,鹿场存栏马鹿 80只。 1 999年 5月、8月鹿场突然二次死亡 2只鹿 ,1 0月又突然死亡 1只 ,其中 2只 2岁 ,1只 1 .5岁。有 2只夜间突然发病死亡 ,1只白天吃草时突然发病 ,表现运动失调 ,口吐白沫 ,全身震颤 ,四肢… 相似文献
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宁夏盐池县某养殖场饲养的羊发生了突然倒地死亡,或晚上没有任何症状而次日晨死于羊圈为特征的疾病,经诊断为羊A型魏氏梭菌病。现将诊断和防治情况报道如下。1流行情况该养殖场共饲养羊1328只,发病324只,全部死亡。发病羊都是青壮年羊,营养比较好,发病地区羊没有进行羊梭菌病疫苗免疫注射。本病为散发,1个羊群发病后,附近其他羊群不一定同时发病。在1个羊群中出现后,一般要延续10～20d,表现为陆续发病、死亡。2临床症状在5个发病羊群中,初期都有3～5只羊急性死亡,或在放牧途中或正在吃草即突然倒地挣扎几下就死去;或向前猛冲,腾空而起然后… 相似文献
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水貂急性链球菌病的诊治 总被引：1，自引：0，他引：1
２０００年６月下旬，我市养貂户刘某饲养的水貂发生了急性传染病，经临床观察、病理剖检、细菌学检查及药物治疗确诊为水貂急性链球菌病。１发病情况刘某饲养水貂 １１４只，成年貂 ２８只，当年幼貂８６只，生长发育良好，６月２２日突然发病，到６月３０日共死亡１１只，成貂２只，９只均为幼貂。２临床症状最急性的无任何症状，前１ｄ晚上吃食尚正常，次日早晨就死亡，或早上尚吃喝正常，不到中午就已死亡，病程短的仅为０．５ｈ～２ｈ。急性的病貂突然拒食，精神沉郁，不愿活动，行走时后驱左右摇晃，呼吸急促而浅表，有的病貂流鼻汁，… 相似文献
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１９９９年８月２４日青海循化县查汗都斯乡阿河滩等地区发生“胆大病”,羊只陆续死亡,经现场调查,尸体剖解和微生物学检查等诊断结果报告如下：１发病情况阿河滩村韩某等五门户饲养育肥的欧拉型藏羊（以下简称羊）系河南县、泽库县等地贩运而来,育肥已两月余。于８月２４日至９月１０日相继死亡２１只,均为幼龄羊。该地区每月都有“胆大病”病料送县化验室检疫,均以疑似羊块疫处理。２临床症状发病突然、死亡快,常见患羊放牧时死在外面或早晨发现死在羊圈里。腹部膨胀,有疝病症状。３尸体剖解新鲜尸体的主要损害为真胃有显著的出血… 相似文献
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禽霍乱是鸡、鸭、鹅和火鸡的一种急性、败血性传染病。病的特征呈现急性败血症和剧烈下痢，发病急、死亡快。根据发病情况、临床症状、剖检变化和实验室等综合诊断为鸭巴氏杆菌病。１发病情况和临床症状２０００年５月，我市某鸭场饲养的肉食鸭，于４５日龄时，突然发病，很快死亡，发病死亡鸭都是健壮肥大的。第１ｄ发病死亡９只，其后，鸭群中不少鸭表现精神沉郁，食欲减少，渴欲增加，体温升高达４３℃～４４℃，排黄绿色稀粪，呼吸急促，鼻孔和口流出混有泡沫状粘液，鸭冠呈蓝紫色。２剖检变化 剖检６只发病死亡鸭，其皮下组织、腹膜、… 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