Unidentified coryneform bacterial strain from cases of polyarthritis in chickens: phenotype and fatty acid profile     

Mohan K  Shroeder-Tucker LC  Karenga D  Dziva F  Harrison A  Muvavarirwa P 《Avian diseases》2002,46(4):1051-1054

We report isolation of a strain of fermentative coryneform bacteria from an outbreak of polyarthritis in chickens. This strain could not be assigned to any recognized bacterial taxon because its peculiar phenotype is not yet reported. The strain possessed phenotypic characteristics and fatty acid profile similar to Erysipelothrix but, on the other hand, exhibited temperature-dependent motility like Listeria. We found no evidence of either Mycoplasma synoviae or Chlamydia infection. Details of the phenotype and fatty acid profile of the isolate and measures undertaken to contain the outbreak have been described.  相似文献   

Transitional cell carcinoma of the urinary bladder in a Thoroughbred, with intra-abdominal dissemination     

Patterson-Kane JC  Tramontin RR  Giles RC  Harrison LR 《Veterinary pathology》2000,37(6):692-695

A 14-year-old Thoroughbred gelding with a history of acute onset of hematuria was presented for necropsy. Transitional cell carcinoma of the urinary bladder with intra-abdominal dissemination was diagnosed. Tumor masses were observed on the splenic capsule and surrounding the distal abdominal aorta. Tumor cells showed diffuse cytoplasmic reactivity for cytokeratin but were negative for epithelial membrane antigen, carcinoembryonic antigen, tumor-associated glycoprotein 72, and vimentin.  相似文献   

Enrofloxacin-induced retinopathy in a guanaco (Lama guanicoe).     

Tara M Harrison  Richard R Dubielzig  Timothy R Harrison  Modesto McClean 《Journal of zoo and wildlife medicine》2006,37(4):545-548

A 4-yr-old male guanaco (Lama guanicoe) in a multispecies exhibit presented with a laceration in the axillary region. The laceration was surgically repaired. Medical treatment was initiated with penicillin G procaine and benzathine (1920 IU/kg, i.m., s.i.d. for 14 days), and enrofloxacin (2.4 mg/kg, i.m., s.i.d. for 14 days). The animal was later treated with trimethoprim-sulfadiazine (24 mg/kg, p.o., s.i.d. for 10 days). Twenty-six days after initial presentation, the guanaco was suspected to be blind. An ophthalmic examination confirmed retinal damage. On postmortem histological evaluation, there was outer retinal atrophy that was most severe in the central retina with localized foci of complete retinal atrophy; lesions were similar to those observed in enrofloxacin retinal toxicity in cats.  相似文献   

Toxoplasma gondii in an African crested porcupine (Hystrix cristata).     

Tara M Harrison  Jamee Black Moorman  Steven R Bolin  Nicole L Grosjean  Ailam Lim  Scott D Fitzgerald 《Journal of veterinary diagnostic investigation》2007,19(2):191-194

An adult female crested porcupine (Hystrix cristata) was evaluated for acute onset of neurologic signs including head tilt, circling, and ataxia. She was found dead in her holding area 2 days after initially exhibiting clinical signs. Necropsy was unremarkable. Histopathology of brain tissue revealed the presence of protozoal cysts associated with inflammation as the underlying cause of clinical signs and death. Immunohistochemical staining of brain tissue for Toxoplasma gondii was strongly positive. PCR on fresh brain confirmed T. gondii as the causative organism. An adult male in the same enclosure has demonstrated similar neurologic signs over the past 3 years and has failed to respond to various medical treatments. Clinical disease associated with T. gondii has not been previously reported in this porcupine species or any other Old World porcupines, although there are several reports of clinical toxoplasmosis involving New World porcupine species.  相似文献   

Systemic calicivirus epidemic in captive exotic felids.     

Tara M Harrison  James Sikarskie  John Kruger  Annabel Wise  Thomas P Mullaney  Matti Kiupel  Roger K Maes 《Journal of zoo and wildlife medicine》2007,38(2):292-299

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First report of a lethal yellowing phytoplasma in Thrinax radiata and Coccothrinax readii palms in the Yucatan Peninsula of Mexico     

M. Narvaez  I. Cordova  R. Orellana  N. A. Harrison  C. Oropeza 《Plant pathology》2006,55(2):292-292

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THE DURAL TAIL SIGN IN THE DIAGNOSIS OF MENINGIOMAS   总被引：3，自引：0，他引：3  

John P.  Graham  MVB  MSc  Susan M.  Newell  DVM  MS  Andra K.  Voges  DVM  Gregory D.  Roberts  DVM  MS  Jay M.  Harrison  MS 《Veterinary radiology & ultrasound》1998,39(4):297-302

In humans the dural tail is a sign seen on contrast enhanced T1 weighted magnetic resonance images. This finding is considered specific for meningioma. The purpose of this study was to determine how often the dural tail occurs in cats and dogs and whether it is a specific sign for meningiomas in these species. MR examinations for eighteen dogs and four cats with proven diagnoses were reviewed. Diagnoses included ten meningiomas (seven dogs and three cats), three gliomas, two pituitary tumors, single examples of two other tumor types and five patients with mass lesions due to inflammatory disease. Contrast enhanced T1 weighted images were evaluated independently by three of the authors for the presence of a dural tail, without knowledge of the diagnoses. The results were compared to the diagnosis for each patient and the performance of individual reviewers compared. When their results were averaged, the reviewers reported the presence of a dural tail in 6 of 10 (60%) meningiomas, although detection varied between observers from 40% to 80%. Each reviewer had one false positive result, two reported a dural tail with a chromophobe adenocarcinoma and one with a toxoplasma meningoencephalitis. When a dural tail is seen an associated mass is most likely a meningioma. It is uncertain whether the dural tail represents neoplastic infiltration beyond the margins of the meningioma. This should be considered when planning treatment.  相似文献   

Reviews and publications received     

J. A. de Bokx  B. D. Harrison 《Potato Research》1972,15(4):403-404

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Surgical correction of a traumatic esophageal diverticulum in a horse     

I W Harrison  R E Cartee 《The Cornell veterinarian》1990,80(3):279-284

A nine-year-old gelding was presented to the Auburn University Large Animal Clinic with discharge of saliva and food material from both nostrils. A diagnosis of esophageal diverticulum was made; treatment is described.  相似文献   

Application of the analytic hierarchy process to riparian revegetation policy options     

M.?E.?QureshiEmail author  S.?R.?Harrison 《Small-Scale Forestry》2003,2(3):441-458

While riparian vegetation can play a major role in protecting land, water and natural habitat in catchments, there are high costs associated with tree planting and establishment and in diverting land from cropping. The distribution of costs and benefits of riparian revegetation creates conflicts in the objectives of various stakeholder groups, and elicitation of importance weights of objectives and determination of rankings of a number of policy options by these stakeholder groups becomes critical in decision-making. The analytic hierarchy process (AHP) is a multicriteria analysis technique that provides an appropriate tool to accommodate the conflicting views of various stakeholder groups. The AHP allows the users to assess the relative importance of multiple criteria (or multiple alternatives against a given criterion) in an intuitive manner. This paper presents an application of AHP to obtain preference weights of environmental, social and economic objectives which have been used in ranking riparian revegetation policy options in a small catchment (watershed) in north Queensland, Australia. The preference weights towards environmental, economic and social objectives have been obtained for the various stakeholder groups (landholders, representatives of local sugar mill staff, environmentalists, recreational fishers and the local community). The AHP technique has proved useful in eliciting objectives and ranking policy options as well as in checking for consistency of the statements of stakeholder groups. Implementation of this approach requires a complex data elicitation process.  相似文献