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1.
A rarely diagnosed case of urachal abscessation without any signs of inflammation of the extra-abdominal navel in a seven-month-old Braunvieh heifer is described. The symptoms of this disease, its diagnosis by the means of ultrasonographic examination and its therapy are explained. The technique of ultrasonographic examination is supposed to be a facilitation of presurgical diagnosis of umbilical disease. Nevertheless the value of this diagnostic procedure should be checked up on more patients. 相似文献
2.
无菌采取病死雏鸡肝、脾、肺等脏器病料,进行了大肠杆菌病原的分离培养与鉴定。综合流行病学、临床症状、病理变化和实验室诊断,确诊为鸡大肠杆菌病。同时,通过药敏试验筛选出敏感药物,为以后的治疗与预防提供理论依据和实际应用参数。 相似文献
3.
Because of their rapid autolysis and post mortem contamination, the examination of dead seapen salmon has been considered of limited value for investigating disease in farmed salmon. Marine anaemia is a recently described plasmacytoid leukemia of farmed salmon that is diagnosed primarily by histological findings. The objectives of this study were to determine if marine anaemia could be reliably diagnosed in dead fish under commercial conditions and to identify the factors that affect the quality of data that are derived from mortality surveys. Surface moribund fish and dead salmon were recovered from four adjacent pens on 31 farm visits to commercial salmon farms over a 6-month period. Mortality surveys provided six times as many fish for gross pathological diagnosis and three times as many fish for reliable histological diagnosis of marine anaemia than did surveys of surface moribund salmon. The interval between recovery of dead fish from a pen most strongly influenced the quality of information derived from the mortality surveys. Mortality surveys proved to be more sensitive to finding the disease than did surface morbidity surveys. The results demonstrated that mortality surveys can provide reliable information, which can generate new insights not only into the impact and epidemiology of marine anaemia, but also for other fatal diseases of seapen salmon. 相似文献
4.
Nine puppies suffered from progressive paresis with muscle wasting, hyporeflexia and extensor rigidity. CK-activity in serum was elevated and electrodiagnostic findings were indicative of lower motor neuron disease. Although lesions were also found in the CNS, additional neurological signs were rare, but CSF examination revealed the presence of inflammatory lesions. On pathologic examination, all animals had a disseminated necrotizing myositis. In addition, a disseminated encephalomyelitis was found as well as, in 2 cases, a neuritis. In the lesions of 6 animals protozoal organisms were found which were immunocytochemically identified as Neospora caninum. Our results show that the protozoal myositis-encephalitis syndrome in puppies can be diagnosed in the clinic with high probability. A clinical differentiation between toxoplasmosis and Neospora caninum infection is presently difficult. 相似文献
5.
The diagnosis of Eperythrozoon suis infection 总被引：3，自引：0，他引：3
K Heinritzi 《Tier?rztliche Praxis》1990,18(5):477-481
Eperythrozoon infection can be diagnosed clinically and hematologically only during acute attacks. In the febrile phase it is possible to detect the eperythrozoon organisms in the blood smear. The best method for staining is that by acridine-orange and examination by fluorescence microscopy. Serological identification (IHA, KBR, ELISA) is suitable for herd diagnosis only, because of the undulating level of the titre. In the individual case only positive results are regarded as significant. The best method to diagnose a latent infection of eperythrozoon suis is to splenectomize a suspected pig. The infection with eperythrozoon suis is a herd problem, therefore an examination should be made whenever there are pale pigs with fever, or a reduction of efficiency or an increased susceptibility to other infections. 相似文献
6.
T Wahli R Knuesel D Bernet H Segner D Pugovkin P Burkhardt-Holm M Escher H Schmidt-Posthaus 《Journal of fish diseases》2002,25(8):491-500
This study presents an overview of the distribution of proliferative kidney disease (PKD) in wild and farmed fish in Switzerland based on two sources: (1) the results of routine diagnostic work at the National Fish Disease Laboratory, and (2) the results of a country‐wide survey for PKD. The first case of PKD in Switzerland was diagnosed in 1979 and since 1981, a few cases have been found every year. Affected species were rainbow trout, brown trout and grayling from rivers and fish farms. Most of the diseased fish were found in the lower altitude regions of the country (Swiss midlands). A seasonal distribution of the cases was evident: PKD‐positive fish occurred only from June to November withprominent peaks in August and September. Among infected fish all length classes were present, but the highest numbers of affected fish were found in the length classes <10 cm and 16–20 cm. The evaluation of the samples from a survey of the occurrence of PKD in 2000/2001 revealed a much broader geographical distribution of the infection than expected from routine diagnostic observations. Fish from 56 of 139 rivers analysed by histological examination were positive for parasites. Fish from 131 of these sites were examined macroscopically. Of these, trout from 45 sites showed gross alterations indicative for PKD. Most of the positive fish were found in the Swiss midlands north of the Alps. Fish from six of 65 fish farms investigated were found to be PKD‐positive by histopathological analysis, and in four of these cases fish could be identified as infected on the basis of gross examination. 相似文献
7.
Novotny L Halouzka R Matlova L Vavra O Bartosova L Slany M Pavlik I 《Journal of fish diseases》2010,33(12):947-955
Mycobacteriosis in fish is a chronic progressive ubiquitous disease caused by Mycobacterium marinum, M. gordonae and M. fortuitum in most cases. The aim of this study was to describe the morphology and distribution of lesions in 322 freshwater ornamental fish across 36 species. Granulomatous inflammation was diagnosed by gross examination and histopathology testing in 188 fish (58.4%); acid‐fast rods (AFR) were determined in only 96 (51.1%) fish from 19 species after Ziehl–Neelsen staining. The most often affected organs with AFR were the kidney (81.2%), digestive tract (54.1%), liver (48.2%), spleen (45.9%) and skin (21.2%); sporadically, AFR were found in the branchiae (9.4%) and gonads (4.7%). In 14 randomly selected fish originating from four different fish tanks, the distribution of mycobacterial infection was studied by culture examination of the skin, gills, muscle tissue, digestive tract, liver, spleen and kidney. In 12 fish, the species M. marinum, M. gordonae, M. fortuitum, M. triviale, and M. avium subsp. hominissuis (serotypes 6 and 8 and genotype IS901? and IS1245+) were detected; mixed infection caused by different mycobacterial species was documented in five of them. 相似文献
8.
W Kraft 《Tier?rztliche Praxis》1988,16(1):75-81
20 cases of feline hyperthyroidism are reported. The examinations were performed during 13 years. The hyperthyroid cats were diagnosed of about 23,000 cats examined in two internal veterinary clinics Giessen und Munich). Diagnosis can be performed with RIA or ELISA methods. Scintigrams had been done for examination of localization and function. Treatments were performed with radioactive iodine, thyroidectomy or thyrostatic drugs. 相似文献
9.
The present work investigated the health status of the Manila clam in Ireland, with particular reference to brown ring disease
(BRD) caused by V. tapetis which has been responsible for high mortalities of this bivalve throughout Europe. BRD was diagnosed in Ireland in the 1990s,
causing heavy mortalities in Manila clam stocks in the north-west coast. In the current study, samples of clams from an Irish
hatchery were obtained and screened from two sites, Drumcliff Bay, Co. Sligo and Dungloe Bay, Co. Donegal. Turbellarians and
trematodes with some minor infections were the only parasites observed. Clams were examined for BRD, by analysis of shell
valves for brown ring signs, and for V. tapetis by microbiological methods and by polymerase chain reaction (PCR). BRD was not diagnosed in cultivated clams from either
site. It was, however, diagnosed in residual clams, which had survived the initial outbreak of BRD in the 1990s in Dungloe
Bay. V. tapetis, however was detected in clams from both sites. Additionally, BRD was diagnosed, and V. tapetis isolated, in a once-off sample of clams from Mulroy Bay, Co. Donegal, where clams had been on-grown from imported seed. Minor
heterogeneity at the 16S rDNA gene was observed between some sequenced products from Mulroy Bay and from Drumcliff Bay and
Dungloe Bay indicating that in addition to V. tapetis, a V. tapetis-like strain may have been present in Mulroy Bay. The detection of V. tapetis in asymptomatic clams in Drumcliff Bay and Dungloe Bay may indicate that disease development may only occur when a number
of factors combine to induce disease symptoms. 相似文献
10.
W Kraft 《Tier?rztliche Praxis》1987,15(2):167-179
Neurological examination in equine practice, physiological findings and pathological disturbances are described. Because of the sizes of the horse the neurological examination is more difficult than in small animals. The examination of cerebrospinal fluid is a worthful completion and is able to refer to the etiology of a certain disease. The technique of the puncture of cerebrospinal fluid is described. 相似文献
11.
Abstract. Nodular gill disease characterized by severe multifocal epithelial hyperplasia was diagnosed in a group of rainbow trout, Salmo gairdneri Richardson, fingerlings. Gills of a large proportion of fish transferred from the affected tank to smaller aquaria showed a marked decrease in severity of the lesions after 2 months. Repair of hyperplastic lesions may occur in various forms of proliferative gill disease, provided that the basement membrane lining the primary and secondary disease, provided that the basement membrane lining the filaments and lamellae remains intact. 相似文献
12.
In a 17 1/2 weeks old pullet stock typhlohepatitis was diagnosed on the occasion of a stock examination by the poultry health service. Liver and gut of randomly selected pullets showed gross and histologic alterations as known in cases of typhlohepatitis in turkeys. Histomonads could be shown using both the PAS-reaction according to McManus and the silverstaining according to Grocott. In the following controls of the herd macroscopic visible alterations of the liver could not be seen, but some of the animals still exhibited gross lesions in the ceca. The course of the development of the herd from point-of-lay to the 9th month of laying period is described. 相似文献
13.
Formaldehyde‐based fixatives are generally employed in histopathology despite some significant disadvantages associated with their usage. Formaldehyde fixes tissue by covalently cross‐linking proteins, a process known to mask epitopes which in turn can reduce the intensity of immunohistochemical stains widely used in disease diagnostics. Additionally, formaldehyde fixation greatly limits the ability to recover DNA and mRNA from fixed specimens to the detriment of further downstream molecular analyses. Amoebic gill disease (AGD) has been reliably diagnosed from histological examination of gills although complementary methods such as in situ hybridization (ISH) and polymerase chain reaction (PCR) are required to confirm the presence of Neoparamoeba perurans, the causative agent of AGD. As molecular techniques are becoming more prevalent for pathogen identification, there is a need to adapt specimen collection and preservation so that both histology and molecular biology can be used to diagnose the same sample. This study used a general approach to evaluate five different fixatives for Atlantic salmon, Salmo salar L., gills. Neutral‐buffered formalin and seawater Davidson's, formaldehyde‐based fixatives commonly used in fish histopathology, were compared to formalin‐free commercial fixatives PAXgene®, HistoChoice?MB* and RNAlater?. Each fixative was assessed by a suite of analyses used to demonstrate AGD including routine histochemical stains, immunohistochemical stains, ISH and DNA extraction followed by PCR. All five fixatives were suitable for histological examination of Atlantic salmon gills, with seawater Davidson's providing the best quality histopathology results. Of the fixatives evaluated seawater Davidson's and PAXgene® were shown to be the most compatible with molecular biology techniques. They both provided good DNA recovery, quantity and integrity, from fixed and embedded specimens. The capacity to preserve tissue and cellular morphology in addition to allowing molecular analyses of the same specimens makes seawater Davidson's and PAXgene® appear to be the best fixation methods for diagnosis and research on AGD in Atlantic salmon gills. 相似文献
14.
对１９９６年底发生在我国东南部沿海地区温室养鳖场原因不明、症状复杂的鳖病进行了寄生虫学、细菌学和病毒学检验,结果未获得致病性病原生物。结合流行病学调查、组织病理和病理生理学检验结果证实,肝脏的病理变化严重,并有规律性,肝功能由功能不全到功能衰竭。临床症状早期表现不明显,晚期严重肝淤血、肝血肿、肝硬变并出现全身性水肿。诊断为中华鳖非寄生性肝病（ｎｏｎ－ｐａｒａｓｉｔｉｃａｌｙｈｅｐａｔｉｔｉｓｏｆＣｈｉｎｅｓｅｓｏｆｔ－ｓｈｅｌｅｄｔｕｒｔｌｅ）。该病为严重肝损害所致,病因为药物、毒物和强化投饲等综合因素。该病患病率高、危害性大,要早期诊断,及时预防与治疗。 相似文献
15.
Two cases of H.c.c. which occurred in winter 1987 in Vienna are described. Case one was a female Chow-Chow, 8 weeks of age, that died from the peracute form of the disease. The diagnosis was confirmed by histology and direct immunofluorescence. Case two, a 9-month old female Kuvacz, showed clinical signs of the subacute form of H.c.c. She was hospitalized and therapy was successful. The disease was diagnosed by the typical clinical signs and the raise of antibodies in paired serum samples. Etiology, clinical signs and immunology of H.c.c. are discussed. 相似文献
16.
B Meinecke 《Tier?rztliche Praxis》1986,14(4):501-508
The present study comprises 31 mares, that showed a permanent unilateral enlargement of the ovary. In 29 patients the ovary in question was removed by a flanc laparotomy in the standing animal. In the histopathologic examination a granulosa cell tumor was diagnosed in 23 cases, a fibroma twice and a teratoma, hematoma, leiomyoma and a cystic ovary each once. Due to the endocrine activity of the granulosa cell tumor, the clinical picture was characterized by changed behaviour and atrophy of the contralateral ovary. Clinically the ovarial blastomas (teratoma, leiomyoma, fibroma) could not be differentiated from granulosa cell tumors. The postoperative prognosis of fertility is good. It should be noted though, that most of the mares did not foal until two years after the surgery. 相似文献
17.
Abstract. Yellow head baculo-like virus infection and disease were demonstrated experimentally in the two main species of penaeid shrimp cultured in Hawaii and the Western hemisphere. Viral infection was induced by intramuscular inoculation of a 10% suspension of cephalothorax tissue filtrate prepared from two tiger shrimp, Penaeus monodon Fabricius, infected with yellow head disease, into sub-adult (3–10g) P. stylirostris (Stimpson) and P. vannamei (Boone). Signs of disease appeared as early as 2 days post infection (p.i.), and in most cases mortality reached 100% within 5–7 days p.i. Histopathological examination of the infected animals revealed extensive cellular necrosis in ectodermal and some mesenchymal tissues. Electron microscopical examination of thin sections of the gill and hepatopancreas from the infected shrimp revealed non-occluded rod-shaped baculo-like virus particles measuring 130–197 & 45–58 nm which were primarily localized within the cytoplasm of infected cells. The virus particles were contained within cytoplasmic vacuoles, and occurred singly or in small groups of two or more particles. 相似文献
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某市某猪场发生了一起以断奶后保育猪突然发病,发热,皮肤发红,贫血,下痢,衰竭为主要症状,发病率和死亡率很高的急性传染病,经流行病学调查、临床症状、剖检变化、实验室检查等综合诊断,确诊为猪圆环病毒病并发猪瘟混合感染,通过采取合理用药和防制措施,病情得到较好的控制。 相似文献