Guilherme Konradt

ORCID: 0000-0003-0202-579X
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Research Areas
  • Microbial infections and disease research
  • Viral gastroenteritis research and epidemiology
  • Vector-Borne Animal Diseases
  • Animal Disease Management and Epidemiology
  • Animal Virus Infections Studies
  • Veterinary medicine and infectious diseases
  • Vector-borne infectious diseases
  • Rabies epidemiology and control
  • Mycobacterium research and diagnosis
  • Veterinary Oncology Research
  • Infectious Diseases and Mycology
  • Toxoplasma gondii Research Studies
  • Bacillus and Francisella bacterial research
  • Herpesvirus Infections and Treatments
  • Tuberculosis Research and Epidemiology
  • Viral Infections and Immunology Research
  • Streptococcal Infections and Treatments
  • Plant Toxicity and Pharmacological Properties
  • Diphtheria, Corynebacterium, and Tetanus
  • Infectious Diseases and Tuberculosis
  • Ruminant Nutrition and Digestive Physiology
  • Plant and fungal interactions
  • Bacteriophages and microbial interactions
  • Animal Behavior and Welfare Studies
  • Milk Quality and Mastitis in Dairy Cows

Universidade Federal do Rio Grande do Sul
2016-2021

University of Cruz Alta
2018-2020

Universidade Federal de Mato Grosso do Sul
2016

Universidade Federal de Santa Maria
2013

ABSTRACT: This study describes suppurative infectious diseases of the central nervous system (CNS) in domestic ruminants southern Brazil. Reports from 3.274 cattle, 596 sheep and 391 goats were reviewed, which 219 21 7 diagnosed with inflammatory diseases. Suppurative CNS corresponded to 54 cases (28 19 goats). The conditions observed consisted listerial meningoencephalitis (8 sheep, 5 4 cattle), leptomeningitis (14 2 1 sheep), cerebral (6 cattle spinal cord (7 sheep) abscesses, basilar...

10.1590/s0100-736x2017000800007 article EN cc-by Pesquisa Veterinária Brasileira 2017-08-01

Bovine viral diarrhea virus (BVDV) belongs to the Pestivirus genus, which is further divided into subgenotypes (1a–1u and 2a–c). When persistent infection occurs, calf will be immunotolerant BVDV possibly develop mucosal disease. This study describes an outbreak of BVDV-1d–induced disease lacking intestinal lesions. Eleven calves presented with anorexia, sialorrhea, lameness, recumbency, death. Three were necropsied, showing ulceration interdigital skin oral nasal mucosa; linear ulcers in...

10.1177/0300985816666610 article EN Veterinary Pathology 2016-09-02

Twenty-six cattle and 7 horses were diagnosed with rabies. Samples of brain spinal cord processed for hematoxylin eosin staining immunohistochemistry (IHC). In addition, refrigerated fragments tested by direct fluorescent antibody test intracerebral inoculation in mice. Statistical analyses Fisher exact performed commercial software. Histologic lesions observed the all horses. Inflammatory moderate at thoracic, lumbar, sacral levels, marked lumbar enlargement level. Gitter cells present...

10.1177/1040638716647992 article EN Journal of Veterinary Diagnostic Investigation 2016-05-30

This study reports the epidemiological, pathological and mycological findings of cutaneous pythiosis in cattle southern Brazil. 23 calves, that were kept next to a river with extensive marshy regions, presented ulcerated lesions thoracic pelvic limbs, sometimes extending ventral region. Histopathological examination revealed multifocal pyogranulomas superficial deep dermis. The Grocott-Methenamine silver, immunohistochemistry anti-Pythium insidiosum, ELISA serology molecular characterization...

10.1016/j.mmcr.2016.11.004 article EN cc-by-nc-nd Medical Mycology Case Reports 2016-11-26

Visando-se determinar as características e frequência das doenças na população suína região de abrangência do Laboratório Patologia Veterinária (LPV) da Universidade Federal Santa Maria (UFSM), foi realizado um estudo retrospectivo todos os diagnósticos necropsias realizadas nesta espécie no período 1964 a 2011. Foram separados 564 casos com conclusivos. A criação é predominantemente familiar diagnosticadas, refletem esta realidade. As infecciosas parasitárias foram mais prevalentes...

10.1590/s0100-736x2013001000006 article PT cc-by Pesquisa Veterinária Brasileira 2013-10-01

ABSTRACT: The diagnosis of the cause death in goats submitted to necropsy from January 2000 December 2016 by Setor de Patologia Veterinária Universidade Federal do Rio Grande Sul was reviewed. Epidemiological features, such as breed, sex and age, addition clinical pathological features were evaluated. During this period, 322 necropsied, which a conclusive obtained 290 (90%) goats. Goats that part other experimental study excluded study. From these cases, 167 (57.6%) corresponded diseases...

10.1590/1678-5150-pvb-5765 article EN cc-by-nc Pesquisa Veterinária Brasileira 2018-11-01

Summary Background Trema micrantha is a tree widely distributed throughout the Americas. The produces highly palatable leaves that have been associated with natural poisoning in goats, sheep and horses, which hepatic necrosis encephalopathy observed. Objectives This study describes malacia haemorrhage central nervous system (CNS) due to T. consumption, minimal absent lesions. Study design Retrospective case series. Methods A total of 14 horses history neurological signs spontaneous...

10.1111/evj.12741 article EN Equine Veterinary Journal 2017-08-14

Porcine circovirus type 2 (PCV2) is associated with multiple clinical syndromes in pigs, known as porcine diseases. This work describes an outbreak of diseases severe lesions affecting the skeletal muscle. Ninety-two pigs had apathy, weight loss, and diarrhea over a course 7 to 10 days. Approximately 30 stiff gait, muscle weakness, hind limb paresis, recumbency. Twelve 92 were necropsied, 4 pale discoloration muscles microscopic granulomatous necrotizing myositis. Immunohistochemistry showed...

10.1177/0300985817736114 article EN Veterinary Pathology 2017-10-19

ABSTRACT: Sida carpinifolia poisoning causes a chronic neurodegenerative disorder associated with lysosomal storage by indolizidine alkaloids (swainsonine). The epidemiological, clinical, pathological and lectin histochemistry findings of an outbreak natural S. in horses Rio Grande do Sul state, Brazil, are described. Five from total 15 that were kept on native pasture large amounts presented during 90 days clinical signs progressive weight loss, incoordination, stiff gait ramble, addition...

10.1590/s0100-736x2017000900005 article EN cc-by-nc Pesquisa Veterinária Brasileira 2017-09-01

ABSTRACT: This study aimed to determine the frequency and distribution of infectious diseases diagnosed through necropsy examination histopathological analysis in growing/finishing pigs along 12 years (2005-2016) Southern Brazil. We evaluated 1906 anatomopathological exams at phases, which corresponded 75.6% cases (1,441/1,906). Porcine circovirus type 2 (PCV2) infections were most frequent, accounting for 51.3% (739/1,441) with a higher from 2005 2007, characterizing an epidemic...

10.1590/1678-5150-pvb-6510 article EN cc-by-nc Pesquisa Veterinária Brasileira 2020-04-01

ABSTRACT: This paper describes six cases of tuberculosis in the central nervous system (CNS) cattle state Paraíba northeastern Brazil. We reviewed autopsy reports 851 bovine necropsies performed from 2003 to 2016. Seventy-three (8.6%) were diagnosed with and showed lesions CNS. Three affected up two-year-old other three adults. presented exclusively signs, two had respiratory signs weight loss one did not present any clinical signs. At necropsy, five thickening leptomeninges cerebellum,...

10.1590/1678-5150-pvb-5976 article EN cc-by-nc Pesquisa Veterinária Brasileira 2018-11-01

Background: Cases of plant intoxication in small animals are observed frequently the domestic environment, mainly because most dogs and cats live households occasionally have access to streets rural areas. Among such toxic agents, ornamental plants genus Lilium Hemerocallis, which potentially nephrotoxic feline species, highlighted. Affected start presenting clinical signs 1-6 h after ingestion. Renal failure takes place 12-72 h, death may occur an interval ranging from three seven days. The...

10.22456/1679-9216.89516 article EN cc-by ACTA SCIENTIAE VETERINARIAE 2018-01-12

Cholelithiasis is a rare condition in horses that may cause biliary obstruction and consequent hepatic fibrosis. Two with history of icterus were presented for clinical examination. Horse #1, an 18-year-old crossbred gelding, inappetence, head pressing, abnormal gait both pelvic limbs. #2, 14-year-old stallion severe cachexia. At necropsy, the liver was firm prominence lobular pattern reticular whitish aspect. The common duct horse #1 #2 contained, respectively, 6 cm diameter numerous 2.5–5...

10.1016/j.jevs.2017.05.009 article EN publisher-specific-oa Journal of Equine Veterinary Science 2017-05-20

RESUMO: O botulismo nos animais domésticos é uma intoxicação fatal ocasionada pela ingestão da neurotoxina de Clostridium botulinum. Este trabalho descreve os aspectos epidemiológicos, clínicos e laboratoriais um surto tipo C em equinos propriedade rural no município Porto Alegre, Rio Grande do Sul. Do total 20 equinos, sete (35%) foram acometidos morreram, eutanasiado após apresentar prognóstico desfavorável. Os cavalos, criados extensivamente, apresentaram sinais semelhantes,...

10.1590/s0100-736x2017001200002 article PT cc-by-nc Pesquisa Veterinária Brasileira 2017-12-01

Resumo: Timpanismo ruminal consiste na distensão acentuada do rúmen e retículo, devido a incapacidade animal em expulsar gases produzidos durante o processo fisiológico da fermentação. O timpanismo pode ser ocasionado de forma primária, por formação espuma estável, ou secundária, anormalidades funcionais e/ou físicas que interferem eructação. Nesse trabalho, são descritos os aspectos epidemiológicos, clínicos anatomopatológicos ocorrência secundário bovinos, decorrente obstrução esofágica...

10.1590/s0100-736x2016000500007 article PT cc-by-nc Pesquisa Veterinária Brasileira 2016-05-01

Background: Squamous cell carcinoma (SCC) is a malignant neoplasm of epidermal cells that exhibits keratinocyte differentiation. These neoplasms are common in dogs, cats, horses, and cattle, relatively uncommon sheep, rarely affect goats pigs. There several factors associated with the development SCC, including prolonged exposure to ultraviolet light, lack pigment epidermis, sparse coating or fur at affected sites. The aim this study was report occurrence squamous domestic pig.Case: A...

10.22456/1679-9216.84475 article EN cc-by ACTA SCIENTIAE VETERINARIAE 2016-01-16

Nephroblastoma is a congenital renal neoplasm composed of metanephric blastema and stromal cells. A one-year-old male Angus calf presented with diarrhea, nasal discharge, cough weight loss. Serum levels creatinine urea were increased, reduction in the level albumin. After eight days, clinical condition got worse died. On necropsy, cranial pole left kidney firm whitish mass (30 x 21 14 cm). Multifocal to coalescing nodules observed on serosa large intestine, mesentery adventitia urinary...

10.5433/1679-0359.2017v38n1p305 article EN publisher-specific-oa Semina Ciências Agrárias 2017-03-02
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