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用猪丹毒杆菌人工感染2月龄肉鸽,对其进行临床症状,病理剖检及病理组织学观察。试验结果表明,人工感染猪丹毒杆菌肉鸽在接种细菌后12h出现症状,18～45h全部死亡。剖检可见肠道卡他性炎,脾呈典型的败血性变化,心、肝、肾、肺等不同程度的淤血和出血。病理组织学检查表明,在感染肉鸽的心、肝、肾、肺等组织出现炎症及坏死性脾炎等病变。 相似文献
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猪丹毒是由猪丹毒杆菌引起的猪的一种急性、败血性传染病。其特征为高热和皮肤上形成大小不等,形状不一的紫红色疹块,俗称"打火印",临床主要表现为急性败血型和亚急性疹块型,转为慢性的多发生关节炎、心 相似文献
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猪丹毒一、诊断要点猪丹毒俗称打火印,是由猪丹毒杆菌引起的急性败血性传染病。本病多发于夏季,以幼龄猪更常见。病猪体温达42℃以上,常便秘。病末期,皮表(耳尖、吻突、胸、背、四肢内侧等)呈暗红色,一般1～2天内死亡。病程稍长的猪,皮表可出现略硬且突出的方形、菱形的红色疹块;慢性病猪多见前、后肢的关节红肿、跛行。剖检特征为:胃及十二指肠明显出血;肾肿大、色暗红,俗称“大红肾”;脾肿大,淋巴结全出血。二、防治措施1加强饲养管理,推行自繁自养,严格消毒,搞好环境卫生。常发地区可以用猪瘟、猪丹毒、猪肺疫三联苗预防接种。2一旦发现… 相似文献
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季明 《畜牧兽医科技信息》2021,(3):150-150
猪丹毒(Erysipelassuis)是由红斑丹毒丝菌引起猪的一种急性传染病,病猪通常出现皮肤紫色红色疹块、体温升高等典型症状。近年来随着生猪养殖集约化水平的不断提高,发病率呈现逐年下降趋势,但仍有地方性散发趋势。1病原猪丹毒的病原为红斑丹毒丝菌(Erysipelothrixrhusiopathiae)是微需氧和兼性厌氧菌,俗称猪丹毒杆菌,病菌在病死猪的脾、肝、肾、扁桃体以及淋巴组织等处可以检出。 相似文献
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《中国畜牧兽医文摘》2016,(4)
猪丹毒是猪丹毒杆菌引起的急性、热性传染病,主要侵害架子猪,它能引起急性败血症、亚急性疹块型、慢性型等。本人经治一起疑似猪丹毒病例,临床剖解可见肾脏肿大呈弥漫性暗红色,脾脏充血肿大且中部有黑色梗死灶,肠系膜淋巴结肿大出血;心瓣膜有菜花样疣状赘生物等。取病猪的肝脏、脾脏进行涂片染色镜检,确定病原并配合综合治疗取得良好效果。 相似文献
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家兔亚硒酸中毒的病理形态学研究 总被引：1，自引：0，他引：1
给家兔分别肌肉注射不同剂量的亚硒酸钠，历时入周，复制出亚急性硒中毒的动物模型。病理形态学变化为：家兔的生长受到明显抑制，肝，肾，心，脾等组织器官损害严重如肝实质细胞变性，坏死；肾实质退行病变；心肌纤维变性，充血，肺淤血，水肿：脾萎缩，淋巴细胞坏死，肝，肾，心细胞内线粒高度肿胀，嵴减少，断裂或消失成空泡。 相似文献
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猪丹毒猪丹毒俗称打火印,是由猪丹毒杆菌引起的传染病。急性的常伴随败血症,亚急性的皮肤发生特异性疹块,慢性的主要表现为心內膜炎或关节炎?静≈饕趾?—12个月大的猪只。在夏秋炎热季节多呈地方流行性或散发性爆发。主要通过消化道侵入猪体,皮肤损伤也可感染,蚊蝇 相似文献
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应用光镜和电镜技术研究了人工感染雏番鸭细小病毒病死鸭的心、肝、脾、肺、肾、胰、法氏囊和大脑等8种器官的显微结构和发病鸭的心、肝、脾、肺、肾、胰等6种器官的超微结构变化。结果如下：1．显微结构变化主要表现为：各器官的血管扩张、充血，以肺脏尤为严重，并见少量淋巴单核细胞浸润，同时心、肝、肾、胰和大脑均呈现不同程度的变性；而免疫器官脾、法氏囊则主要表现为淋巴细胞数量减少。2．超微结构变化主要表现为：（1）各实质细胞内线粒体肿胀，嵴变少而或崩解，内质网减少，脂滴增多，部分细胞水肿坏死；（2）血管内皮均有不同程度的脂滴增多，水肿以至脱落；（3）吞噬能力加强，表现为细胞内次级溶酶体增多，吞噬细胞数量增加，其胞浆内含大量的吞噬体。 相似文献
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396头适繁母牦牛和226头围产期牦牛按体况评分方法进行体况评分,并在发情季节进行了发情率的跟踪观察;对446头围产期牦牛按体况评分2.0组和2.0以下组在进行不同量补饲对比试验,旨在探讨体况基础上的营养调控繁殖研究。结果表明:发情牦牛的体况评分为4.16±0.44,未发情牦牛的体况评分为3.49±0.45,差异极显著;妊娠母牦牛产前体况评分在2.63,产后体况评分下降到0.34的母牦牛产后发情率达到45.46%,而产前体况低于2.0,产后体况下降0.5以上的母牦牛产后发情周期不能恢复;围产期牦牛体况评分低于2.0,补饲1kg/d,围产期体况高于2.0,补饲0.5kg/d,能使17%～30%的产后母牦牛当年进入发情配种状态。 相似文献
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Valorie S. Mackey DVM Donald R. Trout DVM‡ Dennis M. Meagher DVM PhD† William J. Hornof DVM MS‡ 《Veterinary radiology & ultrasound》1987,28(1):26-31
The medical records, radiographic and nuclear scintigraphic findings of 26 racing horses with 27 stress fracture episodes of the humerus, radius, or tibia were reviewed. The purposes of this study were to describe the radiographic and/or scintigraphic features of stress fractures of the humerus, radius, or tibia, and to evaluate the signalment and history of horses in which stress fracture occurred. Stress fractures of the three long bones examined were primarily seen in 2-and 3-year-old male Thoroughbred horses; commonly, the onset of lameness was immediately following training gallops or racing. There were 13 humeral stress fracture episodes in 12 horses. Ten were in the proximal caudolateral cortex, and three were in the distal craniomedial cortex. Radial stress fractures were seen in three horses, all in the midshaft radius. Tibial stress fractures were diagnosed in 11 horses. They were located in the proximal lateral tibia in six horses, the distal caudolateral tibia in three horses, and the midshaft tibia in three horses. Fifteen stress fractures were diagnosed with radiographs alone, one was diagnosed with scintigraphy alone, nine were diagnosed with radiographs and scintigraphy, and, in two horses, radiographs were negative, but the scintigraphic findings were consistent with stress fracture. 相似文献
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中华绒螯蟹细菌性病原的分离与鉴定 总被引：5，自引：0，他引：5
对杭州地区患病的中华绒螯蟹进行了病原的分离和鉴定 ,从病蟹体内分离到 2株革兰氏阴性杆菌 ,单极生鞭毛 ,运动 ,兼性厌氧 ,发酵葡萄糖产酸产气 ,氧化酶、过氧化氢酶阳性 ,七叶苷、蔗糖、水杨素阴性 ,还原硝酸盐 ,对氨苄青霉素和羧苄青霉素敏感等 ,同易损气单胞菌的形态特征、生理生化特性基本相同 ,故将这 2株病原菌鉴定为易损气单胞菌 (Aeromonas trota)。人工注射感染健康蟹后 ,均在 2 d内死亡 ,死亡率为 10 0 %,从而证实易损气单胞菌为此次患病中华绒螯蟹的致病菌。 相似文献
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Mukaratirwa S 《Journal of veterinary medicine. B, Infectious diseases and veterinary public health》2006,53(1):51-53
Disseminated zygomycosis and concomitant pulmonary aspergillosis were diagnosed in breeder layer cockerels. Five- to 9-week-old breeder layer cockerels with a history of an increased mortality rate were presented to a diagnostic laboratory for examination. On necropsy, large, multifocal, firm, tan, nodules were observed in the lungs, air sacs, peritoneum, livers, spleens and kidneys. On histopathology, mixed populations of zygomycetes and Aspergillus hyphae were observed in the granulomas in the lungs, and zygomycete hyphae were observed in the granulomas in the air sacs, peritoneum, livers, spleens and kidneys. No bacteria were isolated from any of the lesions. Aspergillus fumigatus was isolated from the lung lesions only and hyphae that were consistent with those of a Rhizopus spp. were isolated from the lesions in several organs. Pullets, which were kept together with the cockerels from the day they were hatched, were not affected. The absence of infection in the pullets, which were kept together with the cockerels, suggests that the cockerels were either infected during incubation, with the fungi penetrating the egg shell, or that they were infected during hatching before they were mixed with the pullets. 相似文献
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Curtis CF 《The Veterinary record》2001,148(8):238-239
This study was designed to assess the accuracy of a commercial enzyme-linked immunosorbent assay for the diagnosis of canine scabies. Serum samples from 37 dogs were examined blind; 12 had sarcoptic mange confirmed by the identification of mites in skin scrapings, 12 were atopic (with positive intradermal reactions to one or more aeroallergens, including Dermatophagoides farinae), and 13 were healthy dogs with no history of skin disease. Optical density values of more than 0.16 were considered positive, 0.145 to 0.16 were considered questionable and less than 0.145 were considered negative. Ten of the 12 dogs with scabies were positive, all 12 atopic dogs were negative, and 11 of the 13 healthy dogs were negative and two were questionable. 相似文献
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红安格斯牛超数排卵和胚胎移植受体同期发情处理 总被引：3，自引：0，他引：3
选择100头红安格斯母牛使用2种超数排卵处理方案,有效超排供体母牛77头。对受体牛采用3种方案进行同期发情处理。结果表明:育成母牛和经产母牛平均回收胚胎数分别为8.45、9.23枚(P>0.05),平均回收可用胚胎数分别为6.33、7.02枚(P>0.05);2种超排方案均取得较好的效果,超排方案1和方案2分别回收胚胎数为10.10、7.63枚,回收可用胚胎数为6.62、6.51枚。受体同期发情处理一次PG法、二次PG法及CIDR+PG法,同期发情率分别为71.19%、74.44%和77.63%(P>0.05),发情受体利用率分别为66.67%、64.93%及69.49%(P>0.05),胚胎移植妊娠率分别为50.00%、55.17%和56.10%(P>0.05),与自然发情受体利用率及胚胎移植妊娠率无显著性差异。 相似文献
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为了鉴定和分析五指山猪背部和腹部皮下脂肪组织中差异表达的长链非编码RNA(long noncoding RNA, lncRNA)和信使RNA(messenger RNA, mRNA),采用RNA-Seq和生物信息学方法对五指山猪皮下脂肪组织中的lncRNA和mRNA进行分析筛选,运用DESeq鉴定背部和腹部皮下脂肪组织中差异表达的lncRNA和mRNA,并对差异表达的lncRNA进行靶基因预测分析。结果显示:在五指山猪皮下脂肪组织中共鉴定出12 875个lncRNA,其中正义型10 155个、反义型278个、内含子型246个、基因间型2 196个;在背部与腹部皮下脂肪间,存在184个差异表达的mRNA,其中前十位分别是ZIC1、ZIC4、HAND2、CCBE1、RPH3A、ISM1、ANXA8、SLITRK4、DSG2、EVPL,存在45个差异表达的lncRNA,其中6个只在背部皮下脂肪中表达、18个只在腹部皮下脂肪中表达;获得差异表达lncRNA的靶基因共109个,包括顺式作用的靶基因和反式作用的靶基因。本试验为进一步研究lncRNA和mRNA调控猪皮下脂肪发育的分子机制提供科学依据。 相似文献
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野生黄鼬消化管组织结构的观察 总被引：1，自引：1，他引：0
通过组织学观察,探讨野生黄鼬消化管的组织结构特点.将8只野生黄鼬经乙醚麻醉后处死,解剖取食管、胃、小肠、大肠,制作石蜡切片,观察其组织结构.结果显示野生黄鼬食管的黏膜为复层扁平上皮,食管腺发达,肌层以骨骼肌为主.胃贲门部有发达的皱襞和贲门腺;胃底腺有大量的主细胞和壁细胞;胃大弯部的腺体以壁细胞为主,仅有少量主细胞;胃幽门部有发达的幽门腺和大量壁细胞.十二指肠黏膜层有小肠腺,内有潘氏细胞存在,黏膜下层含有十二指肠腺;空肠可见孤立淋巴小结、弥散淋巴组织及集合淋巴小结.结肠无皱襞和肠绒毛,大肠腺排列紧密,其中杯状细胞特别多;直肠固有膜内有发达的大肠腺.所以野生黄鼬消化管的特点是胃各部胃腺发达,壁细胞特别多. 相似文献
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S J Cysewski R L Wood A C Pier A L Baetz 《American journal of veterinary research》1978,39(3):445-448
The effect of aflatoxin consumption on the development of acquired immunity to swine erysipelas was studied. Twenty-four pigs were divided into 4 groups (6 pigs/group). Two groups were fed a normal diet and 2 groups were fed the same diet but containing aflatoxin. One group from each diet treatment was given a single injection of an erysipelas bacterin, and 21 days later all pigs were given a challenge inoculum of virulent Erysipelothrix rhusiopathiae organisms. On the basis of the response to the challenge inoculation, pigs were classified as immune, partially immune (PI), or susceptible. Three of the vaccinated pigs fed the normal diet were immune, 2 were PI, and 1 was susceptible, whereas none of the vaccinated pigs given the aflatoxin diet were immune, only 1 was PI, and the remainder were susceptible. Two of the nonvaccinated pigs fed the normal diet were PI and 4 were susceptible; all of the nonvaccinated pigs fed the aflatoxin diet were susceptible. It was concluded that aflatoxin consumption interfered with the development of acquired immunity and apparently increased the severity of the E rhusiopathiae infection in unvaccinated pigs. 相似文献