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Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology

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https://www.readbyqxmd.com/read/27759758/enzootic-instability-for-bovine-anaplasmosis-on-family-farms-located-in-southwestern-paran%C3%A3-brazil
#1
Tatiane Sott, Carina Franciscato, Adolfo Firmino da Silva, Iucif Abrão Nascif, Fagner Luiz da Costa Freitas
The objective of this study was to assess the occurence of animals seropositive for Anaplasma marginale in the municipality of Realeza, Paraná State, Brazil. Blood samples were collected from 344 cows on 18 small farms in the municipality of Realeza-PR. The animals'serum samples were forwarded to the Federal University of Fronteira do Sul, in order to investigate the occurrence of anti-A. marginale IgG antibodies by an enzyme-linked immunosorbent assay commercial kit. IgG antibodies to A. marginale were detected in cattle from 77...
October 13, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27737370/kudoa-spp-myxozoa-multivalvulida-parasitizing-fish-caught-in-aracaju-sergipe-brazil
#2
Jorge Costa Eiras, Rodrigo Yudi Fujimoto, Rubens Riscala Madi, Veronica de Lourdes Sierpe Jeraldo, Cláudia Moura de Melo, Jônatas Dos Santos de Souza, José Antonio Picanço Diniz, Daniel Guerreiro Diniz
This study reports on Kudoa spp. (Myxozoa, Multivalvulida) from the fish species Lutjanus analis, Bagre marinus, Aspistor luniscutis and Lutjanus jocu, which were caught in Aracaju, state of Sergipe, Brazil. The parasites formed oval plasmodia around the esophagus of L. analis, and elongated plasmodia inside the skeletal muscle of B. marinus, A. luniscutis and L. jocu. Host myoliquefaction was not observed in all the cases studied. The current study provides a morphological and morphometric description of each parasite as well as a comparison with all the species described worldwide...
October 10, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27737369/new-records-of-three-hippoboscid-species-on-newly-captured-birds-from-nature-in-paran%C3%A3-brazil
#3
Frederico Fontanelli Vaz, Valéria Natascha Teixeira
The aims of this study was to provide new records of hippoboscid flies collected over an one-year period on newly captured birds from nature in the state of Paraná, Brazil. The birds were received by a wildlife center in Tijucas do Sul and the hippoboscid flies were collect by hand or by tweezers, generating a prevalence of 0.7% (16/2232) of parasitized birds. New information about distribution of hippoboscid flies on Asio clamator, Rupornis magnirostris and Athene cunicularia was reported in the state of Paraná...
October 10, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27737368/assessment-of-transplacental-transmission-of-neospora-caninum-in-dairy-cattle-in-the-agreste-region-of-pernambuco
#4
Inalda Angélica de Souza Ramos, Rafael José da Silva, Thiago Arcoverde Maciel, José Augusto Bastos Afonso da Silva, Otavio Luiz Fidelis, Pierre Castro Soares, Rosangela Zacarias Machado, Marcos Rogério André, Carla Lopes de Mendonça
The transplacental transmission is the primary route of Neospora caninum infection in bovine herds around the world. This study aimed to determine the frequency of transplacental transmission of the parasite in dairy cattle of Agreste region of Pernambuco through serological tests (IFAT and ELISA). Three hundred sixteen serum samples from cows and heifers and their offspring were analyzed. The transplacental transmission rate was 72.22% (13/18) for cows and 69.23% (9/13) for heifers by IFAT. ELISA test showed transplacental transmission rate of 43...
October 10, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27579529/first-report-of-sapajus-cay-naturally-infected-by-trypanosoma-cruzi-in-san-pedro-department-paraguay
#5
Nidia Acosta, Jorge Miret, Elsa López, Alicia Schinini
To verify the occurrence of natural Trypanosoma cruzi infection in non-human primates from a rural endemic area of the east region of Paraguay, xenodiagnosis was performed in 35 animals belonging to two species. For genotyping and T. cruzi discrete typing unit (DTU) assignment, a combination of four markers was used, including amplification products of the small (18S) and large (24Sα) subunits of ribosomal ribonucleic acid gene, the intergenic region of mini-exon gene and the heat shock protein 60 Eco-RV polymerase chain reaction-restriction fragment length polymorphism (HSP60/EcoRV-PCR-RFLP)...
August 29, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580399/risk-factors-for-toxoplasma-gondii-infection-in-sheep-and-cattle-from-fernando-de-noronha-island-brazil
#6
Fernando Jorge Rodrigues Magalhães, Müller Ribeiro-Andrade, Adrianne Mota de Alcântara, José Wilton Pinheiro, Maria José de Sena, Wagnner José Nascimento Porto, Rafael Felipe da Costa Vieira, Rinaldo Aparecido Mota
Toxoplasmosis is a zoonotic disease of global distribution that affects all warm-blooded animals. The purpose of this investigation was to determine the prevalence of T. gondii infection and identify the risk factors associated with its occurrence in domestic ruminants raised on the island of Fernando de Noronha, Brazil, and to confirm that cattle and sheep raised in Fernando de Noronha Island present statistically different T. gondii prevalence rates. Serum samples were collected from sheep (n=240) and cattle (n=140) for the detection of antibodies by indirect immunofluorescence...
August 25, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27683842/post-immunization-immunohistochemical-expression-of-caspase-3-and-p53-apoptotic-markers-in-experimental-hydatidosis
#7
Amany Ahmed Abd El-Aal, Naglaa Saad Mahmoud El-Gebaly, Abeer Said Al-Antably, Marwa Adel Hassan, Marwa Ahmed El-Dardiry
The aim of this study was to investigate post-immunization apoptotic changes in experimental hydatidosis, using Caspase 3 and p53 immunohistochemical markers. Two groups of rabbits were immunized with a crude antigen (group 1) or a partially purified antigen (group 2) and were compared to an infected non-immunized control group. More effective immune responses were obtained in group 2 than group 1, signified by fewer and smaller cystic lesions and more severe destructive changes. Normal growth of cysts was attained in the control group, with no expression of apoptotic markers...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27683841/parasites-of-marine-freshwater-and-farmed-fishes-of-portugal-a-review
#8
Jorge da Costa Eiras
An extensive literature review is made of the parasites in marine and freshwater fish in mainland Portugal, the Portuguese archipelagos of the Azores and Madeira, as well as in farmed fish. The host(s) of each parasite species, its location in the host, site of capture of the host, whenever possible, and all the available bibliographic references are described. The economic importance of some parasites and the zoonotic relevance of some parasitic forms are discussed. A general overview of the data is provided, and some research lines are suggested in order to increase and complement the current body of knowledge about the parasites of fish from Portugal...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580400/influence-of-apoptosis-on-liver-and-spleen-resistance-in-dogs-with-visceral-leishmaniosis
#9
Pamela Rodrigues Reina Moreira, Douglas Augusto Franciscato, Sabrina Micelli Rossit, Danísio Prado Munari, Rosemeri de Oliveira Vasconcelos
The aim of this study was to evaluate apoptosis and parasite load in the liver and spleen of dogs with visceral leishmaniosis (VL), using immunohistochemistry. Liver and spleen samples from 71 dogs with VL were used. The parasite load in the spleen and liver showed significant difference between organs in infected group (P=0.0219). The density of the parasite load in the spleen (median=2.4) was higher than liver (median=0.8). Immunodetection of apoptotic cells was predominant in lymphocytes and differ between the infected and control group in spleen (P=0...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580398/management-and-control-of-parasites-on-dairy-farms-in-northwestern-region-of-s%C3%A3-o-paulo-state
#10
Cecília José Veríssimo, Flávia Vasques, Keila Maria Roncato Duarte, Valdinei Tadeu Paulino, Luis Alberto Ambrósio
Dairy cattle farming is of great economic and social importance in all Brazilian's regions. Parasites can reduce milk productivity, especially the tick Rhipicephalus (Boophilus) microplus. This study consisted of a questionnaire answered by 40 milk producers in the northwestern region of the State of São Paulo. The aim was to ascertain how these producers controlled ticks and other parasites. Very many of them knew nothing about the biological cycle of the cattle tick or about strategic control or acaricide efficacy tests...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580397/infections-of-hypostomus-spp-by-trypanosoma-spp-and-leeches-a-study-of-hematology-and-record-of-these-hirudineans-as-potential-vectors-of-these-hemoflagellates
#11
Lincoln Lima Corrêa, Marcos Sidney Brito Oliveira, Marcos Tavares-Dias, Paulo Sérgio Ceccarelli
Among Kinetoplastida, the Trypanosoma is the genus with the highest occurrence infecting populations of marine fish and freshwater in the world, with high levels of prevalence, causing influences fish health and consequent economic losses, mainly for fish populations in situation stress. This study investigated infections of Hypostomus spp. by Trypanosoma spp. and leeches, as well as blood parameters of this host in the network of tributaries of the Tapajós River in the state of Pará, in the eastern Amazon region in Brazil...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580396/efficacy-of-treatments-with-toltrazuril-7-5-and-lasalocid-sodium-in-sheep-naturally-infected-with-eimeria-spp
#12
Fernando de Souza Rodrigues, Luiz Eduardo Roland Tavares, Fernando Paiva
The objective of this study was to evaluate the efficacy of an experimental formulation of toltrazuril 7.5% + Trimix™ on a naturally acquired infection of Eimeria spp. in suckling lambs kept on pasture and, in another trial, evaluate the comparative efficacy between lasalocid and toltrazuril 7.5% + Trimix™ in newly weaned sheep under feedlot conditions that had been naturally infected with Eimeria spp. In the first experiment, 30 suckling lambs were divided into two groups: A - treated with toltrazuril 7...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580395/multiparasitism-in-a-wild-cat-leopardus-colocolo-carnivora-felidae-in-southern-brazil
#13
Lucas Trevisan Gressler, Jéssica Caroline Gomes Noll, Ítallo Barros de Freitas, Silvia Gonzalez Monteiro
Parasitic diseases reflect the health and balance of ecosystems, affecting not only individuals but also entire populations or communities. The aim of this study was to report on the diversity of parasitic helminths detected in the feces of a wild feline in southern Brazil. Parasites were obtained from fecal samples, and four techniques were used for parasitological examination: direct examination, centrifugal flotation with zinc sulfate (Faust technique), simple sedimentation (Hoffman technique) and Baermann-Moraes...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580394/molecular-and-morphological-evidence-of-taenia-omissa-in-pumas-puma-concolor-in-the-peruvian-highlands
#14
Luis Antonio Gomez-Puerta, Virgilio Alarcon, Joel Pacheco, Francisco Franco, Maria Teresa Lopez-Urbina, Armando Emiliano Gonzalez
A total of 41 cestodes were collected during necropsy examination on 2 pumas (Puma concolor) that were found in 2 communities in Canchis province, Cuzco region, Peru, at 4500 meters above sea level (Peruvian Andes). The cestodes were evaluated morphologically and molecularly. A fragment of the mitochondrial cytochrome c oxidase subunit 1 gene (cox1) was used as a genetic marker. All the cestodes were identified as Taenia omissa. In the present report, we give a brief description by molecular and morphological diagnosis of the cestodes and compare nucleotide sequences with previous isolates from GenBank...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580393/rickettsial-infection-in-ticks-infesting-wild-birds-from-two-eco-regions-of-argentina
#15
Fernando Sebastián Flores, Francisco Borges Costa, Santiago Nava, Luiz Adrián Diaz, Marcelo Bahia Labruna
Several tick-borne Rickettsia species are recognized human pathogens in Argentina. Here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of Argentina. The ticks were processed by molecular analysis through polymerase chain reaction (PCR) detection and DNA sequencing of fragments of two rickettsial genes, gltA and ompA. A total of 594 tick specimens (532 larvae and 62 nymphs), representing at least 4 species (Amblyomma tigrinum, Ixodes pararicinus, Haemaphysalis juxtakochi, Haemaphysalis leporispalustris), were evaluated...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580392/comparison-of-five-parasitological-techniques-for-laboratory-diagnosis-of-balantidium-coli-cysts
#16
Alynne da Silva Barbosa, Otilio Machado Pereira Bastos, Claudia Maria Antunes Uchôa, Alcides Pissinatti, Augusto César Machado Pereira Bastos, Igo Vieira de Souza, Laís Verdan Dib, Eduarda Peixoto Azevedo, Mayara Perlingeiro de Siqueira, Matheus Lessa Cardozo, Maria Regina Reis Amendoeira
Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for detecting cysts of this protozoon. Between 2012 and 2014, 1905 fecal samples were collected from captive animals in the state of Rio de Janeiro...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580391/occurrence-of-mycoplasma-haemocanis-in-dogs-infested-by-ticks-in-campo-grande-mato-grosso-do-sul-brazil
#17
Rodrigo Leite Soares, Jessica Teles Echeverria, Giovana Pazzuti, Herbert Patric Kellerman Cleveland, Verônica Jorge Babo-Terra, Elisabete Friozi, Carlos Alberto do Nascimento Ramos
Hemotropic mycoplasmas in dogs, such as Mycoplasma haemocanis, have been described worldwide. Recently, these pathogens have been reported to be causative agent of zoonosis. It is known that its transmission may occur through the action of blood-sucking arthropods (e.g. ticks or fleas), through blood transfusion, contaminated fomites and/or transplacentally. In Brazil, M. haemocanis is present in practically all regions and the tick Rhipicephalus sanguineus sensu lato is suspected the main vector. In the municipality of Campo Grande, state of Mato Grosso do Sul, there is little information about infection of dogs by M...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27580390/helminths-of-molothrus-bonariensis-gmelin-1789-passeriformes-icteridae-from-southernmost-brazil
#18
Fabiana Fedatto Bernardon, Tatiele de Aguiar Lopes Soares, Thainá Dutra Vieira, Gertrud Müller
Information about helminths of Molothrus bonariensis (Gmelin, 1789) (Passeriformes: Icteridae) are scarce; in this sense the objective of this paper was to contribute to its knowledge. Five hosts of southern Brazil were examined and the helminths Prosthogonimus ovatus, Tanaisia valida (Digenea), Diplotriaena bargusinica and Synhimantus (Dispharynx) nasuta (Nematoda) were identified. The species T. valida, P. ovatus and S. (D.) nasuta are for the first time registered for the bird in Brazil. Prosthogonimus ovatus, T...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27579530/new-insights-from-molecular-characterization-of-the-tick-rhipicephalus-boophilus-microplus-in-brazil
#19
Bárbara Guimarães Csordas, Marcos Valério Garcia, Rodrigo Casquero Cunha, Poliana Fernanda Giachetto, Isabella Maiumi Zaidan Blecha, Renato Andreotti
The Rhipicephalus (Boophilus) microplus complex currently consists of five taxa, namely R. australis, R. annulatus, R. (B.) microplus clade A sensu, R. microplus clade B sensu, and R. (B.) microplus clade C sensu. Mitochondrial DNA-based methods help taxonomists when they are facing the morpho-taxonomic problem of distinguishing members of the R. (B.) microplus complex. The purpose of this study was to perform molecular characterization of ticks in all five regions of Brazil and infer their phylogenetic relationships...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27096532/anthelmintic-efficiency-of-doramectin-fenbendazole-and-nitroxynil-in-combination-or-individually-in-sheep-worm-control
#20
Luciane Holsback, Pedro Alex Ramsey Luppi, Camile Sanches Silva, Gustavo Kremer Negrão, Gabriel Conde, Hugo Vinícius Gabriel, João Vitor Balestrieri, Lucas Tomazella
The anthelmintic efficiency of doramectin, fenbendazole, and nitroxynil, used individually or in combination, was determined by the Fecal Egg Count Reduction (FECR) test and cultivation of larvae of anthelminthic-treated sheep grouped as follows: G1 (doramectin), G2 (fenbendazole), G3 (nitroxynil), G4 (doramectin + fenbendazole), G5 (doramectin + nitroxynil), G6 (fenbendazole + nitroxynil), G7 (doramectin + nitroxynil + fenbendazole), G8 (untreated). In addition to individually used doramectin and fenbendazole, the helminths were also resistant to the combination of doramectin + fenbendazole; nitroxynil + fenbendazole; and doramectin + nitroxynil + fenbendazole, with their FECR rates ranging from 62-83%...
July 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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