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Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology

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https://www.readbyqxmd.com/read/30427529/nematode-capilaridae-in-the-tongue-of-cerdocyon-thous-of-free-life-in-brazil
#1
Raul Henrique da Silva Pinheiro, Isabella Bittencourt Pires Chaves, Rogério Antonio Ribeiro Rodrigues, Érika Branco, Ana Rita de Lima, Elane Guerreiro Giese
Studies of helminths in road-killed wild animals are still uncommon but may provide promising results since they can identify the parasites in juvenile and adult hosts and meet the recommendations of current discussions on bioethics that prioritize alternative methods for the use of animals. This study evaluated three Cerdocyon thous individuals that were donated after dying from being run over. Two of them had small nematode adults in the epithelial and connective tissues of the tongue. The diagnosis was based on the presence of eggs, observed in histological sections, and morphological characteristics of the nematodes in the tongue...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427528/theileria-sp-in-water-buffaloes-from-maranh%C3%A3-o-state-northeastern-brazil
#2
Hugo Luca Abate, Nelson Jessé Rodrigues Dos Santos, Danilo Rodrigues Barros Brito, Jessica Damiana Marinho Valente, Thállitha Samih Wischral Jayme Vieira, João Luis Garcia, Rafael Felipe da Costa Vieira, Odilon Vidotto
Anaplasma marginale and piroplasm species are widespread among Brazilian cattle herds. Both of these tick-borne pathogens hamper livestock production and cause a significant economic impact. Although buffaloes have demonstrated a high level of adaptability, data on tick-borne pathogens are scarcely reported in Brazil. Thus, the aim of this study was to screen water buffaloes from the state of Maranhão for piroplasm and A. marginale occurrence using PCR assays. All samples were negative for A. marginale. One of the 287 (0...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427527/changes-in-hematological-and-biochemical-parameters-of-tambaqui-colossoma-macropomum-parasitized-by-metazoan-species
#3
Maria Juliete Souza Rocha, Gabriela Tomas Jerônimo, Oscar Tadeu Ferreira da Costa, José Celso de Oliveira Malta, Maurício Laterça Martins, Patricia Oliveira Maciel, Edsandra Campos Chagas
The aim of this study was to evaluate the impacts of metazoan parasites on hematological and biochemical parameters and relative condition factor of tambaqui (Colossoma macropomum ) farmed in northern Brazil. A total of 32 juvenile fish were captured from a commercial fish farm located in the municipality of Rio Preto da Eva, Amazonas state, Brazil. Parasite prevalence was 100% for Anacanthorus spathulatus, Mymarothecium boegeri and Notozothecium janauachensis, 100% for Neoechinorhynchus buttnerae and 53.13% for Dolops geayi...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427526/cucullanus-marajoara-n-sp-nematoda-cucullanidae-a-parasite-of-colomesus-psittacus-osteichthyes-tetraodontiformes-in-the-maraj%C3%A3-brazil
#4
Raul Henrique da Silva Pinheiro, Ricardo Luis Sousa Santana, Scott Monks, Jeannie Nascimento Dos Santos, Elane Guerreiro Giese
Cucullanus marajoara n. sp. (Cucullanidae) is reported to parasitize Colomesus psittacus (Tetraodontiformes), which is a fish species from the Marajó Archipelago, state of Pará, estuarine region of the Brazilian Amazon. The new species differs from similar species by the presence of a protruding upper lip on the cloacal opening, the distribution of the cloacal papillae: five pre-cloacal papillae pairs and 5 are ventral and located posteriorly to the pre-cloacal sucker and an unpaired papilla is located on the upper cloacal lip and five post-cloacal pairs, and a pair of lateral phasmids located between papillae pairs...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427525/nematode-resistance-to-five-anthelmintic-classes-in-naturally-infected-sheep-herds-in-northeastern-brazil
#5
Francisca Flávia da Silva, Hermano Manoel Francisco Figueiredo Bezerra, Thais Ferreira Feitosa, Vinícius Longo Ribeiro Vilela
This study aimed to evaluate the occurrence of nematode resistance to anthelmintics on sheep herds from the semi-arid region of Paraíba, Northeastern Brazil. Fecal Egg Count Reduction Test (FECRT) was carried out on 20 properties. In each herd, 30 animals were divided into five groups containing six animals each: group I, treated with albendazole 10%, 4 mg/kg; group II, ivermectin 0.08%, 0.2 mg/kg; group III, closantel 10%, 10 mg/kg; group IV, levamisole hydrochloride 5%, 5 mg/kg; and group V, monepantel 2...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427524/a-cysteine-protease-from-the-latex-of-ficus-benjamina-has-in-vitro-anthelmintic-activity-against-haemonchus-contortus
#6
Ledia Feitosa Wanderley, Alexandra Martins Dos Santos Soares, Carolina Rocha E Silva, Isaias Moreira de Figueiredo, Andre Teixeira da Silva Ferreira, Jonas Perales, Handerson Ribeiro de Oliveira Mota, Jose Tadeu Abreu Oliveira, Livio Martins Costa Junior
Haemonchus contortus is a gastrointestinal nematode that is responsible for high mortality rates in ruminant herds. The resistance of nematodes to synthetic anthelmintics is widespread and requires a continuous search for new bioactive molecules, such as proteins. The objective of this study was to evaluate the anthelmintic potential of a protease purified from the latex of Ficus benjamina against H. contortus . Fresh latex was collected from plants via small incisions in the green stems, the rubber was removed by centrifugation, and the latex protein extract (LPE) was obtained...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427523/detection-of-a-putative-novel-genotype-of-ehrlichia-sp-from-opossums-didelphis-aurita-from-brazil
#7
Andresa Guimarães, Juliana Macedo Raimundo, Aline Tonussi da Silva, Fernanda Modesto Carpintero, Jeferson Rocha Pires, Jyan Lucas Benevenute, Rosangela Zacarias Machado, Marcos Rogério André, Cristiane Divan Baldani
Erlichiosis affects humans and animals worldwide. Its distribution and prevalence depends on the presence of tick vectors and hosts in one geographic area. The aim of the present study was to investigate the occurrence of Ehrlichia spp. and Anaplasma spp. in opossums (Didelphis sp.) from the State of Rio de Janeiro, southeast Brazil. Blood samples from 37 animals were tested for these two pathogens using molecular methods. One animal (2.7%) was positive for Ehrlichia sp. by 16S rRNA-based nested PCR. In a phylogenetic analysis based on the 16S rRNA gene using the maximum likelihood method and the GTRGAMMA+I evolutionary model, we detected a novel Ehrlichia sp...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427522/helminth-metacommunity-structure-of-wild-rodents-in-a-preserved-area-of-the-atlantic-forest-southeast-brazil
#8
Thiago Dos Santos Cardoso, Caryne Aparecida de Carvalho Braga, Carla Elizabeth Macabu, Raquel de Oliveira Simões, Sócrates Fraga da Costa-Neto, Arnaldo Maldonado Júnior, Rosana Gentile, José Luis Luque
The helminth fauna and metacommunity structure of eight sympatric sigmodontine rodents were investigated at the Serra dos Órgãos National Park, an Atlantic Forest reserve located in the State of Rio de Janeiro, southeast Brazil. Rodents of the species Abrawayaomys ruschii, Akodon montensis, Blarinomys breviceps , Delomys dorsalis, Oligoryzomys flavescens, Oligoryzomys nigripes, Oxymycterus quaestor and Thaptomys nigrita were found infected with helminths. Akodon montensis presented the highest total helminth species richness, with six different species of helminths...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427521/rhinonyssidae-acari-in-the-house-sparrows-passer-domesticus-linnaeus-1758-passeriformes-passeridae-from-southern-brazil
#9
Luciana Siqueira Silveira Dos Santos, Carolina Silveira Mascarenhas, Paulo Roberto Silveira Dos Santos, Nara Amélia da Rosa Farias
We report the occurrence and infection parameters of two species of nasal mites in Passer domesticus (Linnaeus, 1758) (house sparrow). Nasal passages, trachea, lungs, and air sacs of 100 house sparrows captured in an urban area at the city of Pelotas, State of Rio Grande do Sul, southern Brazil, were examined with a stereomicroscope. The mite, Sternostoma tracheacolum Lawrence, 1948 was present in the trachea and/or lungs (or both) of 13 birds (13%) at a mean intensity of 6.7 mites/infected host. Ptilonyssus hirsti (Castro & Pereira, 1947) was found in the nasal cavity of 1 sparrow (1%); coinfection was not observed in this bird...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427520/prevalence-and-associated-factors-with-neospora-caninum-infection-in-female-water-buffaloes-bubalus-bubalis-from-pernambuco-brazil
#10
Pollyanne Raysa Fernandes de Oliveira, Larice Bruna Ferreira Soares, Jonas de Melo Borges, Rinaldo Aparecido Mota, José Wilton Pinheiro Junior
Neosporosis is one of the major parasitic diseases that causes reproductive problems, making it a limitation for optimal efficiency in livestock. The aim of the present study was to conduct a seroepidemiological survey for bubaline neosporosis and to analyse associated factors associated with N. caninum infection in female water buffaloes in the State of Pernambuco, northeast Brazil. The prevalence of N. caninum infection in the bubaline herds examined was 35.4% (122/345; 95% CI: 30.4%-40.7%), at least 1 Neospora-positive animal was found in each farm...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427519/eimeria-spp-apicomplexa-eimeriidae-of-marsupials-mammalia-didelphimorphia-in-southern-bahia-brazil
#11
Hllytchaikra Ferraz Fehlberg, Pedro de Alcântara Brito Junior, Martín Roberto Del Valle Alvarez, Bruno Pereira Berto, George Rêgo Albuquerque
The occurrence of Eimeria Schneider, 1875 in mammals of the order Didelphimorphia indicates the infection-predisposition of these animals, which in turn is mainly determined for their eating habits. The objective of this work was to evaluate the parasitism of Eimeria spp. in marsupials of the Atlantic Forest of the southern region of Bahia. Fecal samples were collected from marsupials captured in the regions of Ilhéus, Una, Belmonte and Mascote, with traps of the Sherman model (23 × 8 × 9 cm), Tomahawk (50 × 17 × 17 cm) and pitfall and analyzed by Sheather's modified centrifugal-flotation method...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30427518/occurrence-of-dioctophyme-renale-larvae-goeze-1782-nematoda-enoplida-in-a-new-host-from-southern-brazil
#12
Carolina Silveira Mascarenhas, Julia Veiga Pereira, Gertrud Müller
Dioctophymatosis is caused by the giant kidney worm Dioctophyme renale which occurs in dogs, cats, and wild mammals. In Brazil, the disease has been diagnosed in dogs from several states around the country. In the present study, the occurrence of D. renale larvae in snakes from southern of Brazil is reported. Three specimens of Philodryas patagoniensis (Serpentes: Dipsadidae) (common names in Brazil: "parelheira", "papa-pinto") roadkill in the county of Capão do Leão, State of Rio Grande do Sul, southern Brazil, were necropsied...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30184004/isolation-and-genetic-characterization-of-toxoplasma-gondii-from-free-ranging-and-captive-birds-and-mammals-in-pernambuco-state-brazil
#13
Marcio André Silva, Hilda Fátima Jesus Pena, Herbert Sousa Soares, Juliana Aizawa, Solange Oliveira, Bruna Farias Alves, Dênisson Silva Souza, Renata Pimentel Bandeira Melo, Solange Maria Gennari, Rinaldo Aparecido Mota, Jean Carlos Ramos Silva
Recent genetic population studies on Toxoplasma gondii in Brazil have shown large genetic variability. The objective of the present study was to isolate and genotypically characterize T. gondii from free-ranging and captive wild mammals and birds in Pernambuco state, Brazil. Fragments of heart, brain, skeletal muscle and diaphragm tissue from 71 birds and 34 mammals, which were either free-ranging or captive, were collected. Samples from 32 of these animals were subjected to bioassays in mice. Samples from the remaining 73 animals underwent biomolecular diagnosis, using PCR technique, targeting a repetitive DNA fragment of 529 bp in T...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30184003/seroprevalence-spatial-analysis-and-risk-factors-of-infection-with-neospora-caninum-in-cattle-in-brazil-s-northern-pantanal-wetland
#14
Ana Carolina Schmidt, Thábata Dos Anjos Pacheco, Janice Elena Ioris Barddal, Anderson Castro Soares de Oliveira, Daniel Moura de Aguiar, Rísia Lopes Negreiros, Richard de Campos Pacheco
Neosporosis is caused by an obligate intracellular protozoan, Neospora caninum . It is considered one of the most widespread and frequent causes of abortion in cattle worldwide. To evaluate the prevalence of anti-N. caninum antibodies and associated risk factors, serum samples were collected from 2,452 bovines at 262 farms in the northern Pantanal, state of Mato Grosso, Brazil. Each farmer was asked to fill out a questionnaire for subsequent epidemiological data analysis. Anti-N. caninum antibodies were detected by means of the indirect immunofluorescent assay (IFA), using a cut-off dilution of 1:100...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30184000/the-dermatitis-by-caparinia-tripilis-and-microsporum-in-african-pygmy-hedgehog-atelerix-albiventris-in-romania-first-report
#15
Olimpia Iacob, Adriana Iftinca
Investigations were conducted on a case of generalized dermatitis in an African pygmy hedgehog (Atelerix albiventris), purchased as a pet. Clinical examination revealed restlessness, agitation, itching and scratching, large alopecic areas, skin congestion and thin whitish scabs. Five skin lesions were scraped and the samples were collected for laboratory tests. Microscopy revealed the presence of the mite Caparinia tripilis (Acari: Psoroptidae). A dermatophyte belonging to Microsporum genus was also isolated by culture on specific media...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30183999/serological-molecular-and-microscopic-detection-of-leishmania-in-cats-felis-catus-in-belo-horizonte-minas-gerais-state-brazil
#16
Fernanda Morcatti Coura, Stephanie Karoline Pereira Passos, Marina de Oliveira França Pelegrino, Fabiola de Oliveira Paes Leme, Gustavo Fontes Paz, Célia Maria Ferreira Gontijo, Adriane Pimenta da Costa-Val
The role of cats in the epidemiological cycle of leishmaniasis remains unclear. To better understand the occurrence of leishmaniasis in cats, we studied the frequency of Leishmania in serum samples of 100 cats living in an endemic region for canine and human leishmaniasis by serological, parasitological, and molecular methods. Of the 100 cats, 54 were seropositive for Leishmania antibodies by immunofluorescence antibody test. None of the bone marrow aspirates collected from these cats tested positive for the parasite in culture or upon polymerase chain reaction (PCR) analysis...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30183997/molecular-survey-and-genetic-diversity-of-piroplasmids-in-equids-from-midwestern-brazil
#17
Fabio Bernardo Schein, Maerle Oliveira Maia, Rute Witter, Arlei Marcili, Lázaro Manoel de Camargo, Valéria Dutra, Luciano Nakazato, Stefhano Luís Candido, Elianara Martins de Almeida, Anderson Castro Soares de Oliveira, Richard de Campos Pacheco
We evaluated the distribution of piroplasmids in equids from the Mato Grosso state in Midwestern Brazil using molecular methods and the interspecific genetic diversity. For this, 1,624 blood samples of equids from 973 farms were examined by PCR, using primer pairs that amplify a fragment of the genes rap-1 and ema-1 of Babesia caballi and Theileria equi, respectively. For molecular characterization and phylogenetic studies, 13 and 60 sequences of the rap-1 and ema-1 genes, respectively, were used to build a dendogram using maximum parsimony...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30183995/occurrence-of-anti-neospora-caninum-antibodies-in-cattle-in-the-dairy-farming-region-of-the-state-of-piau%C3%A3-brazil
#18
Raylson Pereira de Oliveira, Nínivy Marques Soares, José Givanildo da Silva, Müller Ribeiro-Andrade, Nair Silva Cavalcanti de Lira, Márcia Paula Oliveira Farias, Rinaldo Aparecido Mota
This study focused on the detection of anti-Neospora caninum IgG antibodies in cows in the dairy farming region of the state of Piauí, Brazil. To this end, serum samples were collected from 255 dairy cows on 17 farms located in the dairy farming region of the municipality of Parnaíba, Piauí, Brazil. The indirect fluorescence antibody test (IFAT) was employed to detect anti-N. caninum IgG antibodies, using anti-bovine IgG (Sigma®) conjugated to fluorescein isothiocyanate (FITC) and a cutoff point of 1:200...
August 30, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30133593/genetic-diversity-and-molecular-survey-of-trypanosoma-megatrypanum-theileri-in-cattle-in-brazil-s-western-amazon-region
#19
Thábata Dos Anjos Pacheco, Arlei Marcili, Andrea Pereira da Costa, Rute Witter, Andréia Lima Tomé Melo, Ricardo Vilas Boas, Cristiane Silva Chitarra, Valéria Dutra, Luciano Nakazato, Richard de Campos Pacheco
Trypanosoma (Megatrypanum) theileri is a flagellated protozoan that infects ruminants and it displays high genetic diversity. In this study, we investigated the prevalence rates of this protozoan based on hemoculture and molecular diagnosis. The isolates of T. theileri thus obtained were characterized by molecular markers SSU rDNA and gGAPDH and molecular diagnosis based on Cathepsin L-like gene (PCR-TthCATL). The PCR-TthCATL and hemoculture indicated an overall prevalence rate of 8.13%, and the CATL derived sequence named IB was identified for the first time in cattle in the western Amazon region, as well as IF in Brazil...
August 16, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/30208125/toxoplasma-gondii-infection-among-shelter-and-stray-cats-in-rio-de-janeiro-brazil
#20
Pâmela Figueiredo Pereira, Alynne da Silva Barbosa, Ana Leticia Carvalho Santos, Paula Forain Bolais, Marie-Laure Dardé, Maria Regina Reis Amendoeira
The aim of this study was to identify possible infection of Toxoplasma gondii among cats in a shelter and a set of condominiums in the city of Rio de Janeiro, through changes to the cats' serological status between two different times in 2014 and 2015. One group was made up of captive cats at the municipal shelter and the other comprised stray cats that circulated in condominiums in the city. On the first occasion, cats were caught and tagged through application of microchips; in this manner, blood samples were obtained from 261 captive cats and 172 stray cats...
July 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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