Brazilian Journal of Veterinary Medicine https://bjvm.org.br/BJVM <p>The Brazilian Journal of Veterinary Medicine was launched in 1979 as the official scientific periodical of the Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ). </p> <p>The Brazilian Journal of Veterinary Medicine is an open-access journal which means that all content is freely available without charge to the user or their institution. Users are allowed to read, download, copy, distribute, print, search or link to the full texts of the articles, or use them for any other legal purpose, without asking for prior permission from the editor or author, provided they are cited. The font is licensed by Creative Commons Attribution International CC-BY.</p> <p><strong>ISSN 0100-2430</strong></p> <p><strong>ISSN-e 2527-2179.</strong></p> <p> </p> en-US contato.rbmv@gmail.com (Carlos Wilson Gomes Lopes) contato.rbmv@gmail.com (Diefrey Ribeiro Campos) Tue, 09 Jan 2024 09:37:35 -0300 OJS 3.3.0.8 http://blogs.law.harvard.edu/tech/rss 60 Assessment of infection of Stomoxys calcitrans larvae by entomopathogenic nematodes Heterorhabditis amazonensis NEPT11 https://bjvm.org.br/BJVM/article/view/1330 <p>This study aimed to evaluate the virulence of <em>Heterorhabditis amazonenses </em>NEPT11 against larvae of <em>Stomoxys calcitrans</em>. Groups of 10 third-instar fly larvae were deposited in Petri dishes, to which were added 50, 100 and 200 EPNs/larva in 4ml of distilled water. The volume of the control group was the same as the treated group, but without EPNs. Larval mortality was observed daily, until larvae died or adults emerged. The Petri dishes were kept on laboratory shelves at 27 <strong>± </strong>1 °C and 70 ± 10% RH. The experiment was replicated six times. A regression analysis revealed quadratic behavior with increasing concentrations, indicating that the concentration of 200 EPNs/larva (48%) was the most efficient among the tested concentrations, while concentrations of 50 and 100 EPNs/larva killed 26.6 and 40% of larvae, respectively. In general, none of the treatments resulted in a mortality rate of more than 50%, but all the treated groups exhibited a higher mortality than that of the control group. It is concluded that the EPN <em>H. amazonensis </em>NEPT11 shows a promising potential to control third-instar larvae of <em>S. calcitrans</em>. However, further studies are needed in different situations to better understand the activity of this organism against the immature stages of the stable</p> Américo de Castro Monteiro Sobrinho, Ana Caroline Ferreira de Souza, Danielle Pereira da Silva, Gabriela Pereira Salça de Almeida, Vinícius Teixeira de Souza, João Luiz Lopes Monteiro Neto, Melissa Carvalho Machado do Couto Chambarelli Copyright (c) 2024 Américo de Castro Monteiro Sobrinho, Ana Caroline Ferreira de Souza, Danielle Pereira da Silva, Gabriela Pereira Salça de Almeida, Vinícius Teixeira de Souza, João Luiz Lopes Monteiro Neto, Melissa Carvalho Machado do Couto Chambarelli https://creativecommons.org/licenses/by/4.0 https://bjvm.org.br/BJVM/article/view/1330 Fri, 05 Apr 2024 00:00:00 -0300 Description of the parasitic fauna of a specimen of Didelphis albiventris at Rio Grande do Sul https://bjvm.org.br/BJVM/article/view/1329 <p><em>Didelphis albiventris </em>is considered the most common marsupial in Rio Grande do Sul. With omnivorous and synanthropic habits, it can serve as a host to various parasites, playing an important role in maintaining their biological cycle. Despite being a widespread and abundant species, it has a relatively little-known parasitic fauna. Therefore, the aim of this study was to report the diversity of parasites in a fecal sample from <em>D. albiventris </em>in Rio Grande do Sul, Southern Brazil. Modified Centrifugal-flotation and Spontaneous sedimentation techniques were used, revealing a high taxonomic diversity of parasites. Eggs of <em>Ancylostoma </em>spp., <em>Toxocara </em>spp., and Anoplocephalidae were reported for the first time in the host in the southern region of the country, along with the first report of pseudoparasitism by <em>Syphacia </em>spp. and <em>Monocystis </em>spp. in this animal species. The presence of different parasites in the feces of <em>D. albiventris </em>is of utmost importance, primarily for public health, but also for understanding the biodiversity of parasites present in wildlife, which has been poorly studied until now. This allows the implementation of effective strategies for controlling, preventing and treating these diseases.</p> Julia Somavilla Lignon, Diego Moscarelli Pinto, Silvia Gonzalez Monteiro, Natália Soares Martins, Julia Victória de Souza, Giulia Ribeiro Meireles, Tamires Silva dos Santos, Felipe Geraldo Pappen, Fábio Raphael Bruhn Copyright (c) 2024 Julia Somavilla Lignon, Diego Moscarelli Pinto, Silvia Gonzalez Monteiro, Natália Soares Martins, Julia Victória de Souza, Giulia Ribeiro Meireles, Tamires Silva dos Santos, Felipe Geraldo Pappen, Fábio Raphael Bruhn https://creativecommons.org/licenses/by/4.0 https://bjvm.org.br/BJVM/article/view/1329 Tue, 02 Apr 2024 00:00:00 -0300 Use of sarolaner in the treatment of tungiasis in naturally infested dogs https://bjvm.org.br/BJVM/article/view/1328 <p>Tungiasis is an endemic dermatological parasitic zoonosis in Latin America, caused by the sand flea <em>Tunga </em>spp<em>. </em>(Siphonaptera, Tungidae), which promotes intense discomfort, swelling, erythema, itching, pain, secondary bacterial infection, cellulitis and necrosis. Sarolaner has been used to control different ectoparasites, but there is no record of its use for the treatment of tungiasis in dogs. The objective of this study was to evaluate the effectiveness of sarolaner for the treatment dogs naturally infested by <em>Tunga </em>spp<em>. </em>kept in the same infested environment. Three of four animals were medicated with sarolaner orally with a single dose of 2 mg/kg, as recommended by the manufacturer, and one animal remained without medication. After 24 hours, the fleas from all four dogs were mechanically removed. The animals were reevaluated on days +15 and +30 to assess possible reinfestation. The medicated animals remained free of fleas, while the untreated animal had fleas on the days previously defined for reevaluation. We can thus conclude that the use of sarolaner is an effective choice for tungiasis treatment.</p> Rafaella Tortoriello, Natália Lôres Lopes, Bianca Bianco Paschoalino Linhares, Thais Ribeiro Correia, Julio Israel Fernandes Copyright (c) 2024 Rafaella Tortoriello, Natália Lôres Lopes, Bianca Bianco Paschoalino Linhares, Thais Ribeiro Correia, Julio Israel Fernandes https://creativecommons.org/licenses/by/4.0 https://bjvm.org.br/BJVM/article/view/1328 Wed, 13 Mar 2024 00:00:00 -0300 Solid epithelioid peritoneal mesothelioma with pulmonary metastasis in feline https://bjvm.org.br/BJVM/article/view/1327 <p>Mesothelioma is a rare malignant neoplasm that affects the mesothelial cells lining the thoracic and abdominal cavities, such as the pleura, peritoneum, and pericardium. It is most prevalent in dogs and cattle, but the causes of this disease in animals are uncertain. In felines, it mainly affects the pleura, with an unfavorable prognosis. This paper explores a rare case of metastatic peritoneal mesothelioma in a 2-year-old female mixed breed cat, emphasizing its uniqueness due to the feline’s age. The patient, previously treated at a private clinic, presented moderate abdominal distension as the only clinical sign. Abdominal ultrasound and peritoneal fluid cytology led to the provisional diagnosis of mesothelioma/ carcinomatosis. One day after exploratory laparotomy, the animal died and was subsequently sent for necropsy. During macroscopic analysis, nodules were observed in the peritoneum, diaphragm, omentum, stomach serosa, and large intestine, and the diagnosis of solid epithelioid peritoneal mesothelioma with lung metastasis was confirmed after microscopic analysis. The diagnosis of mesothelioma is challenging, and the importance of immunohistochemical panels with specific markers such as cytokeratin AE1/AE3 and calretinin is highlighted. Considering that mesothelioma is a pathology with a poor prognosis, it is essential to include this disease in the list of differential diagnoses within veterinary oncology.</p> Heloísa Cristina Teixeira de Carvalho, Lígia Fernandes Gundim, Felipe Martins Pastor, Gabriel Henrique Guimarães, Arlinda Flores Coleto, Matias Pablo Juan Szabó, Alessandra Aparecida Medeiros-Ronchi Copyright (c) 2024 Heloísa Cristina Teixeira de Carvalho, Lígia Fernandes Gundim, Felipe Martins Pastor, Gabriel Henrique Guimarães, Arlinda Flores Coleto, Matias Pablo Juan Szabó, Alessandra Aparecida Medeiros-Ronchi https://creativecommons.org/licenses/by/4.0 https://bjvm.org.br/BJVM/article/view/1327 Wed, 28 Feb 2024 00:00:00 -0300 Environmental enrichment interaction for laboratory beagle dogs used in research https://bjvm.org.br/BJVM/article/view/1326 <p>Experimental animal facilities can have a negative impact on the well-being of animals owing to confinement. To mitigate this, environmental enrichment (EE) is implemented confinement. The purpose of EE is to enhance the complexity of an animal’s natural environment. The objective of this study was to identify the types of EE most enjoyed by dogs used in experimental research and housed in individual kennels. A total of six adult Beagle dogs, housed at the Laboratório de Quimioterapia Experimental em Parasitologia Veterinária (LQEPV) at the Universidade Federal Rural do Rio de Janeiro (UFRRJ) were included in the study. The EE tools used included Petball® toys, a grassy outdoor area, interaction with other dogs and with a team member, a “pool” made of plastic bottles, and dog’s wet food ice cream. A team member assessed the usage of these tools every 5 min for a 30-min period, six times per day, one day per week, over the course of eight weeks. The study revealed that the grass area was the tool most commonly used for physical enrichment, accounting for 58% of the occurrences (<em>p </em>&lt; 0.05). Social and food enrichment were enjoyed in second and third place, with 23% and 19% of occurrences, respectively. that the study findings suggest that dogs housed in individual kennels enjoy engaging in their natural behaviors.</p> Anna Julia Bessa Fernandes, Fernanda da Silva Freitas Campos, Gabriella Santos Oliveira, Priscila Cardim Oliveira, Debora Azevedo Borges, Ivan de Alamar Pedrosa, Fabio Barbour Scott Copyright (c) 2024 Anna Julia Bessa Fernandes, Fernanda da Silva Freitas Campos, Gabriella Santos Oliveira, Priscila Cardim Oliveira, Debora Azevedo Borges, Ivan de Alamar Pedrosa, Fabio Barbour Scott https://creativecommons.org/licenses/by/4.0 https://bjvm.org.br/BJVM/article/view/1326 Fri, 16 Feb 2024 00:00:00 -0300