Mostrando recursos 1 - 20 de 63

  1. Equine nasopharyngeal cryptococcoma due to Cryptococcus gattii

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de O.; Leite Filho, Ronaldo Viana; Gonçalves, Maiara Aline; Spanamberg, Andréia; Sonne, Luciana; Ferreiro, Laerte; Pavarini, Saulo Petinatti; Driemeier, David
    Cryptococcus gattii is often associated with pulmonary and systemic infections in humans and animals. In this research we report a case of nasopharyngeal cryptococoma caused by C. gatti in an equine. A 10-year-old mare presented a mass obstructing the oropharynx. Macroscopically the mass was asymmetric, and was attached to the ethmoidal sinuses and obstructed the oropharynx. Histopathological examination of the mass revealed multiple yeast cells ranging from spherical to oval, 4-8μm in diameter, with some of them showing narrow base polar budding. Cryptococcus gattii growth in mycological culture (Sabouraud Dextrose Agar) and was L-canavanine-glycine-bromothymol blue Agar positive. The molecular identification...

  2. Equine nasopharyngeal cryptococcoma due to Cryptococcus gattii

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de O.; Leite Filho, Ronaldo Viana; Gonçalves, Maiara Aline; Spanamberg, Andréia; Sonne, Luciana; Ferreiro, Laerte; Pavarini, Saulo Petinatti; Driemeier, David
    Cryptococcus gattii is often associated with pulmonary and systemic infections in humans and animals. In this research we report a case of nasopharyngeal cryptococoma caused by C. gatti in an equine. A 10-year-old mare presented a mass obstructing the oropharynx. Macroscopically the mass was asymmetric, and was attached to the ethmoidal sinuses and obstructed the oropharynx. Histopathological examination of the mass revealed multiple yeast cells ranging from spherical to oval, 4-8μm in diameter, with some of them showing narrow base polar budding. Cryptococcus gattii growth in mycological culture (Sabouraud Dextrose Agar) and was L-canavanine-glycine-bromothymol blue Agar positive. The molecular identification...

  3. Prototheca zopfii genotype 2 disseminated infection in a dog with neurological signs

    Sonne, Luciana; Oliveira, Eduardo Conceição de; Argenta, Fernando Froner; Monteggia, Rafael Souza; Ferreiro, Laerte; Rösler, Uwe; Kershaw, Olivia; Driemeier, David
    Prototheca zopfii is an alga that can cause disease in animals and humans. Here, we reported a case of systemic protothecosis in a 2-year-old female Boxer. The animal exhibited tetraparesis and vertical nystagmus. It died two weeks after the onset of clinical signs and was necropsied. At gross examination, whitish areas were identified in the heart. Oval or round structures were observed by microscopic examination, some of which formed morula-like structures compatible with algae in the heart, skeletal muscle, and brain. Growth of Prototheca sp. was observed in the heart after culture at 37°C on Sabouraud agar medium with chloramphenicol....

  4. Prototheca zopfii genotype 2 disseminated infection in a dog with neurological signs

    Sonne, Luciana; Oliveira, Eduardo Conceição de; Argenta, Fernando Froner; Monteggia, Rafael Souza; Ferreiro, Laerte; Rösler, Uwe; Kershaw, Olivia; Driemeier, David
    Prototheca zopfii is an alga that can cause disease in animals and humans. Here, we reported a case of systemic protothecosis in a 2-year-old female Boxer. The animal exhibited tetraparesis and vertical nystagmus. It died two weeks after the onset of clinical signs and was necropsied. At gross examination, whitish areas were identified in the heart. Oval or round structures were observed by microscopic examination, some of which formed morula-like structures compatible with algae in the heart, skeletal muscle, and brain. Growth of Prototheca sp. was observed in the heart after culture at 37°C on Sabouraud agar medium with chloramphenicol....

  5. Intoxicação por Senecio brasiliensis em bezerros: padrão e evolução de lesões hepáticas

    Panziera, Welden; Gonçalves, Maiara Aline; Oliveira, Luiz Gustavo Schneider; Lorenzett, Marina P.; Reis, Matheus de O.; Hammerschmitt, Marcia Elisa; Pavarini, Saulo Petinatti; Driemeier, David
    Poisoning by Senecio spp. plants are an important cause of death in cattle in the State of Rio Grande do Sul, Brazil. It is estimated that over 50% of deaths caused by toxic plants are due to the ingestion of Senecio spp. The epidemiological, clinical and anatomopathological aspects of a spontaneous outbreak of Senecio brasiliensis in calves are described here. Characterization and evolution of liver lesions during the outbreak are also described. Two hundred and six 4-month-old female calves were weaned and placed in a 25-hectare pasture heavily infested by S. brasiliensis at of varying growth stages. The calves remained...

  6. Intoxicação por Senecio brasiliensis em bezerros: padrão e evolução de lesões hepáticas

    Panziera, Welden; Gonçalves, Maiara Aline; Oliveira, Luiz Gustavo Schneider; Lorenzett, Marina P.; Reis, Matheus de O.; Hammerschmitt, Marcia Elisa; Pavarini, Saulo Petinatti; Driemeier, David
    Poisoning by Senecio spp. plants are an important cause of death in cattle in the State of Rio Grande do Sul, Brazil. It is estimated that over 50% of deaths caused by toxic plants are due to the ingestion of Senecio spp. The epidemiological, clinical and anatomopathological aspects of a spontaneous outbreak of Senecio brasiliensis in calves are described here. Characterization and evolution of liver lesions during the outbreak are also described. Two hundred and six 4-month-old female calves were weaned and placed in a 25-hectare pasture heavily infested by S. brasiliensis at of varying growth stages. The calves remained...

  7. Neoplasmas bovinos diagnosticados no Setor de Patologia Veterinária da UFRGS, Porto Alegre (2005-2014)

    Reis, Matheus de O.; Slaviero, Mônica; Lorenzett, Marina P.; Cruz, Raquel Aparecida Sales da; Guimarães, Lorena Lima Barbosa; Pavarini, Saulo Petinatti; Driemeier, David; Sonne, Luciana
    A retrospective study has been conducted with the objective of determining the types of bovine neoplasms and their frequency. Necropsy and biopsy cases with diagnosis of neoplasm in cattle submitted to the Setor de Patologia Veterinária of Universidade Federal do Rio Grande do Sul (SPV-UFRGS) from January 2005 to December 2014 were analyzed. A total of 4,188 exams were performed in cattle, and 154 were diagnosed as neoplasm. From these 154 occurrences, 100 cases of neoplasm were the cause of death, 41 were collected from cattle in slaughter house and 13 were biopsies sent by field veterinarians. Neoplasms occurred more...

  8. Neoplasmas bovinos diagnosticados no Setor de Patologia Veterinária da UFRGS, Porto Alegre (2005-2014)

    Reis, Matheus de O.; Slaviero, Mônica; Lorenzett, Marina P.; Cruz, Raquel Aparecida Sales da; Guimarães, Lorena Lima Barbosa; Pavarini, Saulo Petinatti; Driemeier, David; Sonne, Luciana
    A retrospective study has been conducted with the objective of determining the types of bovine neoplasms and their frequency. Necropsy and biopsy cases with diagnosis of neoplasm in cattle submitted to the Setor de Patologia Veterinária of Universidade Federal do Rio Grande do Sul (SPV-UFRGS) from January 2005 to December 2014 were analyzed. A total of 4,188 exams were performed in cattle, and 154 were diagnosed as neoplasm. From these 154 occurrences, 100 cases of neoplasm were the cause of death, 41 were collected from cattle in slaughter house and 13 were biopsies sent by field veterinarians. Neoplasms occurred more...

  9. Rangeliosis: histopathological analysis, hematology and molecular detection of canine Rangelia vitalii in Rio Grande do Sul, Brazil

    Fredo, Gabriela; Leite Filho, Ronaldo Viana; Pietzsch, Camila de Ávila; Andrade, Caroline Pinto de; Duda, Naila Cristina Blatt; Nascimento, L.C.; Valle, Stella de Faria; Soares, João Fábio; Sonne, Luciana
    In the period from January 2004 to December 2015, 56 dogs were diagnosed with rangeliosis in the Setor de Patologia Veterinária at Universidade Federal do Rio Grande do Sul (SPV-UFRGS). The main hematological abnormalities were thrombocytopenia and anemia. The affected dogs showed signs of apathy, anorexia, fetid and bloody diarrhea, vomiting, and dehydration. At necropsy, the main changes were jaundice, splenomegaly, hepatomegaly, and lymphadenomegaly. Histological analyses revealed parasitophorous vacuoles of Rangelia vitalii in cytoplasmic endothelial cells, mainly in the heart, kidneys, lymph nodes, intestines, and pancreas. Inflammation characterized by mononuclear cells was predominant in the analysis, and most was due...

  10. Rangeliosis: histopathological analysis, hematology and molecular detection of canine Rangelia vitalii in Rio Grande do Sul, Brazil

    Fredo, Gabriela; Leite Filho, Ronaldo Viana; Pietzsch, Camila de Ávila; Andrade, Caroline Pinto de; Duda, Naila Cristina Blatt; Nascimento, L.C.; Valle, Stella de Faria; Soares, João Fábio; Sonne, Luciana
    In the period from January 2004 to December 2015, 56 dogs were diagnosed with rangeliosis in the Setor de Patologia Veterinária at Universidade Federal do Rio Grande do Sul (SPV-UFRGS). The main hematological abnormalities were thrombocytopenia and anemia. The affected dogs showed signs of apathy, anorexia, fetid and bloody diarrhea, vomiting, and dehydration. At necropsy, the main changes were jaundice, splenomegaly, hepatomegaly, and lymphadenomegaly. Histological analyses revealed parasitophorous vacuoles of Rangelia vitalii in cytoplasmic endothelial cells, mainly in the heart, kidneys, lymph nodes, intestines, and pancreas. Inflammation characterized by mononuclear cells was predominant in the analysis, and most was due...

  11. Genetic associations between reproductive and linear-type traits of Holstein cows in Brazil

    Almeida, Tatiana Prestes de; Kern, Elisandra Lurdes; Daltro, Darlene dos Santos; Braccini Neto, José; Pimentel, Concepta Margaret McManus; Thaler Neto, André; Cobuci, Jaime Araújo
    This study aimed to estimate heritability, genetic, and residual correlations between reproductive traits such as age at first calving, calving interval, dry period, and first service period and linear type traits measured in Holstein cows born between the years 1990 and 2008 in Brazil. The (co)variance components were estimated by restricted maximum likelihood, using the MTDFREML software. The heritability for reproductive traits and linear-type traits ranged from 0.02 to 0.03 and from 0.07 to 0.40, respectively. Estimates of genetic correlations between reproductive and linear-type traits ranged from –0.23 (top line) to 0.28 (angularity) to age at first calving, from –0.54...

  12. Genetic parameters of age at first calving, weight gain, and visual scores in Nelore heifers

    Claus, Luis Afonso Marques; Koetz Junior, Celso; Roso, Vanerlei Mozaquatro; Borges, Marcelo Henrique Favaro; Barcellos, Julio Otavio Jardim; Ribeiro, Edson Luis de Azambuja
    This study aimed at estimating the heritability of age at first calving and of performance traits included in the selection index and the genetic correlations between age at first calving and these performance traits. Data were extracted from the Conexão Delta G database and only data from herds in which heifers were bred younger than 24 months of age were used, resulting in a file with 331,310 evaluated animals. The following traits were included in the analyses: age at first calving, birth to weaning gain, post-weaning weight gain, visual scores of conformation, precocity, and muscling evaluated at weaning and in...

  13. Facial nerve ganglioneuroblastoma in a feline leukemia virus-positive cat

    Pereira, Paula Reis; Tagliari, Nelson Junior; Leite Filho, Ronaldo Viana; Schaefer, Gabriela da Cruz; Costa, Fernanda Vieira Amorim da; Pavarini, Saulo Petinatti
    Neuroblastic tumors can originate from the central neuraxis, olfactory epithelium, adrenal medullary region or autonomous system. Ganglioneuroblastoma are a type of neuroblastic tumor, with very few case descriptions in animals. Diagnosis of facial nerve ganglioneuroblastoma was made in a feline leukemia virus-positive 11-month-old cat. The cat had hyporexia, left head tilt, depressed mental state, horizontal nystagmus, inability to retract the pinched left lip, anisocoria, ptosis, and absence of the menace reflex. Gross necropsy showed a mass at the left facial nerve root region. Histological examination of this mass showed neoplastic proliferation of neuroblasts arranged in a cohesive pattern and mature...

  14. Steers production in integrated crop-livestock systems : pasture management under different sward heights

    Wesp, Cristiane de Lima; Carvalho, Paulo Cesar de Faccio; Conte, Osmar; Cadenazzi, Monica; Anghinoni, Ibanor; Bremm, Carolina
    The aim of this study was to evaluate the effects of different grazing intensities on forage production and animal performance of yearling steers kept under permanent grazing in an integrated crop-livestock system. The treatments consisted of areas with sward heights of 10; 20; 30 and 40 cm, and one treatment with no grazing. The pastures were of bristle oat (Avena strigosa Schreb.) and annual ryegrass (Lolium multiflorum Lam.) following soybean (Glycine max (L.) Merr.). The variables forage mass, forage allowance and residual straw showed a positive and linear fit to the increasing sward height (P0.0001). Average daily gain of steers...

  15. Relationship of post-weaning growth and age at puberty in crossbred beef heifers

    Pereira, Gabriel Ribas; Barcellos, Julio Otavio Jardim; Sessim, Amir Gil; Tarouco, Jaime Urdapilleta; Feijó, Fernanda Dornelles; Braccini Neto, José; Prates, Enio Rosa; Canozzi, Maria Eugênia Andrighetto
    This study was intended to evaluate body size structure and growth parameters of crossbred heifers fed at four nutritional levels to achieve puberty earlier. Animals were classified depending on their level of crossing between Nelore and Hereford and subjected to four nutritional levels (kg day–1) as follows: 0.5 (light; n = 32), 0.75 (medium; n = 32), 1.00 (high; n = 29), and 1.25 (very high; n = 27). Heifers at puberty and at weaning were individually classified for growth parameters. The fat thickness and longissimus muscle area throughout the experimental period were determined by ultrasonography. The height, heart girth,...

  16. Grazing management in an integrated crop-livestock system : soybean development and grain yield

    Kunrath, Taise Robinson; Carvalho, Paulo Cesar de Faccio; Cadenazzi, Monica; Bredemeier, Christian; Anghinoni, Ibanor
    Grazing livestock in integrated crop-livestock systems can cause impacts in the subsequent crop cycle. Aiming to investigate how grazing could affect soybean, the 9th crop cycle of a pasture/soybean rotation was assessed. Treatments were grazing intensities (10, 20, 30 and 40 cm of sward height) applied since 2001 in a mixed of oat and annual ryegrass; and an additional no grazing area as control. Treatments were arranged in a completely randomized block design with three replicates. Grazing affected soybean population and the mass of individual nodules (P<0.05), while the number and mass of nodules per plant were similar (P>0.05). Soybean...

  17. URS Campestre seedless orange : a new mutant with female sterility

    Bender, Renar João; Santos, Rinaldo Pires dos; Guerra, Divanilde; Schwarz, Sergio Francisco; Bender, Stefan da Silveira
    Seedlessness in fruit is a trait that is much sought after by juice making industries. Close to the city of São Sebastião do Caí, in the state of Rio Grande do Sul (RS), Brazil, a new mutant orange originating from natural mutation was identified and selected as a seedless material. To determine the mechanisms involved in the absence of seeds, the reproductive structures of this new mutant by comparison with a Valencia sweet orange as control, a cultivar with a profusion of seeds, was analyzed in terms of meiotic behavior, meiotic index, pollen viability, in vitro germination, and ovule features...

  18. Additives on in vitro ruminal fermentation characteristics of rice straw

    Peripolli, Vanessa; Barcellos, Julio Otavio Jardim; Prates, Enio Rosa; Pimentel, Concepta Margaret McManus; Stella, Laion Antunes; Camargo, Claudia Medeiros; Costa Junior, João Batista Gonçalves; Bayer, Cimelio
    The objective of this study was to evaluate the effects of mineral and protein-energy (MPES), exogenous fibrolytic enzyme supplements (ES), combination of MPES + ES, and straw without supplement (WS) on digestibility, fermentation kinetic parameters, cumulative gas production, methane, CO2 production, and volatile fatty acid concentration of rice straw of low and high nutritional value, estimated by in vitro techniques. The experimental design was randomized and factorial 2 × 4: two straws (low and high nutritional value) incubated with four supplements (MPES, ES, MPES + ES, and WS) and their interactions. Four experimental periods were used, totaling four replications per...

  19. Multisystemic eosinophilic epitheliotropic disease in a horse in Brazil

    Laisse, Cláudio João Mourão; Nascimento, L.C.; Panziera, Welden; Soares, Elizabeth Caldas; Fernandes, Denise Bicca; Westphalen, Júlio César; Sonne, Luciana; Pavarini, Saulo Petinatti; Driemeier, David
    Equine multisystemic eosinophilic epitheliotropic disease (MEED) is a rare disease, characterized by eosinophilia and eosinophilic infiltration of several organs. A 5-year-old horse presented pruritus, areas of alopecia, and moderate eosinophilia. The horse was treated with corticosteroids and antibiotics without substantial improvement; and after the disease progressed to fever, diarrhea, gastric reflux and progressive weight loss. Due to poor prognosis the horse was euthanized. Necropsy revealed poor body condition, multiple to coalescing foci of alopecia, with epidermal ulcerations and crusts on the head and distal parts of the limbs. The proximal duodenum was enlarged, with 3 intraluminal nodules. Histopathological evaluation revealed...

  20. Gelatin capsule waste: new source of protein to develop a biodegradable film

    Campo, Camila de; Pagno, Carlos Henrique; Costa, Tania Maria Haas; Rios, Alessandro de Oliveira; Flôres, Simone Hickmann

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