Revista Brasileira De Parasitologia Veterinaria最新文献

Interactions between endoparasites and anurans in the Nhecolândia Pantanal, Brazil. 巴西nhecolindia Pantanal地区内寄生虫与anurans的相互作用。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-30 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025034

Priscilla Soares Dos Santos, Isabela Caroline Oliveira da Silva, Maiara Cabrera Miguel, Rodney Murillo Couto, Luiz Eduardo Roland Tavares, Vanda Lúcia Ferreira, Fernando Paiva

{"title":"Interactions between endoparasites and anurans in the Nhecolândia Pantanal, Brazil.","authors":"Priscilla Soares Dos Santos, Isabela Caroline Oliveira da Silva, Maiara Cabrera Miguel, Rodney Murillo Couto, Luiz Eduardo Roland Tavares, Vanda Lúcia Ferreira, Fernando Paiva","doi":"10.1590/S1984-29612025034","DOIUrl":"10.1590/S1984-29612025034","url":null,"abstract":"We analyzed the distribution of endoparasites in five species of Hylidae frogs during their reproductive period, aiming to understand how the host's habitat influences the parasites. Five anuran species (Boana raniceps, Pithecopus azureus, Pseudis platensis, Scinax acuminatus and Scinax nasicus) were sampled in temporary and permanent ponds in Nhecolândia Pantanal, Brazil. A total of 276 individuals were collected, 43.84% of which were parasitized by endoparasites. Metacercariae of Diplostomidae gen. sp. were predominant, accounting for 85.94% of the total parasites found. Nematodes and cestodes were also identified, with nematodes representing 7.85% of the total parasites. Statistical analyses indicated that host body size was not a significant predictor of parasitism probability, although a weak negative correlation between host body size and parasite abundance was observed. Network analysis revealed a modular structure in the parasite-host interactions, with moderate connectivity. These results suggest that environmental factors, particularly those related to the aquatic habitats of anurans, play a fundamental role in shaping parasite community structure. This study provides important insights into the complex ecological interactions between anurans and their parasites, significantly contributing to the understanding of parasite-host interaction dynamics in the Pantanal ecosystem.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000425"},"PeriodicalIF":1.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12212064/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular survey of tick-borne pathogens in domestic dogs from a rural region within the buffer zone of a conservation unit in the Brazilian Caatinga biome. 巴西Caatinga生物群系保护区缓冲区内农村地区家犬蜱传病原体分子调查

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-30 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025037

Bruno Vinicios Silva de Araújo, Larissa Daniele Aires Oliveira do Carmo, Sthenia Santos Albano Amora, João Marcelo Azevedo de Paula Antunes, Francisco de Assis Leite Souza, Paulo Henrique Dantas Marinho, Juliana Fortes Vilarinho Braga

{"title":"Molecular survey of tick-borne pathogens in domestic dogs from a rural region within the buffer zone of a conservation unit in the Brazilian Caatinga biome.","authors":"Bruno Vinicios Silva de Araújo, Larissa Daniele Aires Oliveira do Carmo, Sthenia Santos Albano Amora, João Marcelo Azevedo de Paula Antunes, Francisco de Assis Leite Souza, Paulo Henrique Dantas Marinho, Juliana Fortes Vilarinho Braga","doi":"10.1590/S1984-29612025037","DOIUrl":"10.1590/S1984-29612025037","url":null,"abstract":"Although previous studies have identified Ehrlichia canis, Anaplasma platys, Babesia vogeli, and Hepatozoon canis in dogs in Northeastern Brazil, research on their presence within and around environmental conservation units remains scarce. The present study investigated the presence of tick-borne pathogens in domestic dogs in the rural region of Baraúna, within the buffer zone of the Furna Feia National Park (FFNP), an environmental conservation unit in the Caatinga biome of Rio Grande do Norte, northeastern Brazil. Blood samples from 52 dogs were collected to detect the presence of A. platys (16S rRNA), B. vogeli (18S rRNA), E. canis (16S rRNA), and H. canis (18S rRNA) DNA by Polymerase Chain Reaction (PCR). More than 90% of dogs were found to be infected with at least one pathogen, predominantly E. canis and H. canis. Co-infections (38.5%) and multi-infections with three (19.2%) and four (5.8%) pathogens were also frequent and diverse, underscoring the complexity of tick-borne diseases in this region. These findings highlight the epidemiological importance of dog-associated pathogens, and raise concerns regarding their potential transmission to wildlife within the conservation unit, as some of these pathogens have been previously described in wild mammalian species inhabiting the FFNP, including endangered species.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000925"},"PeriodicalIF":1.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12212063/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trypanosoma evansi in Brazil: first evidence of infection in equines from Northeast region. 巴西的伊文氏锥虫：东北地区马感染的首个证据。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-20 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025032

Jordeano Araujo Sousa, Leandro Macedo Miranda, Danielle Jordany Barros Coutinho, Thaliane França Costa, Sidilene Pereira Costa, Úrsula Silva Freitas, Francisco Borges Costa, Rosangela Zacarias Machado, Rita de Maria Seabra Nogueira, Andréa Pereira da Costa

{"title":"Trypanosoma evansi in Brazil: first evidence of infection in equines from Northeast region.","authors":"Jordeano Araujo Sousa, Leandro Macedo Miranda, Danielle Jordany Barros Coutinho, Thaliane França Costa, Sidilene Pereira Costa, Úrsula Silva Freitas, Francisco Borges Costa, Rosangela Zacarias Machado, Rita de Maria Seabra Nogueira, Andréa Pereira da Costa","doi":"10.1590/S1984-29612025032","DOIUrl":"10.1590/S1984-29612025032","url":null,"abstract":"The hemoprotozoan Trypanosoma evansi is a parasite that infects mammals, causing an infection known as trypanosomiasis. There is no report of T. evansi in horses in the State of Maranhão, highlighting the need to assess exposure and infection by the parasite and generate data for its monitoring. The objectives of this study were to identify T. evansi in blood samples from horses, investigate its occurrence in horses in this region, and analyze the associated risk factors. Three hundred blood samples were collected for parasitological (blood smear), serological (indirect enzyme-linked immunosorbent assay - ELISA), and molecular (polymerase chain reaction - PCR) diagnostic purposes. No trypomastigote forms of T. evansi were observed in the examined blood smears. Serological examined of 209 samples revealed that 33.01% (69/209) were positive for anti-T. evansi antibodies. No variable was identified as a risk factor. Among the 300 samples submitted to PCR, 1% (3/300) were positive, and sequencing showed 100% similarity with T. evansi species. The study identified exposure and infection of horses by T. evansi in Maranhão, expanding its geographic distribution in the country and highlighting the importance of periodic testing.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000125"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187158/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144498795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular detection of hemoplasmas in domestic cats from different Brazilian regions. 巴西不同地区家猫血浆分子检测。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-20 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025035

Clara Morato Dias, Kamila Pinheiro Francisco, Gabriela Veiga Oliveira, João Vitor Dos Santos Alves da Silva, Eliz Oliveira Franco, Daniel Antônio Braga Lee, Dália Monique Machado Ribeiro, Maria Eduarda Chiaradia Furquim, Mayra Araguaia Pereira Figueiredo, Rosangela Zacarias Machado, Marcos Rogério André

{"title":"Molecular detection of hemoplasmas in domestic cats from different Brazilian regions.","authors":"Clara Morato Dias, Kamila Pinheiro Francisco, Gabriela Veiga Oliveira, João Vitor Dos Santos Alves da Silva, Eliz Oliveira Franco, Daniel Antônio Braga Lee, Dália Monique Machado Ribeiro, Maria Eduarda Chiaradia Furquim, Mayra Araguaia Pereira Figueiredo, Rosangela Zacarias Machado, Marcos Rogério André","doi":"10.1590/S1984-29612025035","DOIUrl":"10.1590/S1984-29612025035","url":null,"abstract":"Domestic cats can be parasitized by Mycoplasma haemofelis, 'Candidatus Mycoplasma haemominutum', and 'Candidatus Mycoplasma turicensis'. Although the molecular occurrence of hemoplasmas in domestic cats has been investigated in the five geographical regions of Brazil, no studies have been conducted in the states of Rondônia and Minas Gerais to date. The present work aimed to investigate the molecular occurrence of hemoplasmas in cats from four Brazilian states in the Northern, Central-Western and Southeastern regions of the country. Among 486 blood samples - 80 from Rondônia (RO), 100 from Goiás (GO), 155 from Minas Gerais (MG), and 151 from São Paulo (SP) - submitted to the endogenous gapdh gene-based PCR, 94.44% (459/486) were positive, of which 1.96% (9/459; 1 from RO, 2 from GO, 5 from MG, and 1 from SP) were positive in the qPCR assay for hemoplasmas based on the 16S rRNA gene. In the phylogenetic analyses, the obtained 16S rRNA (two genotypes) and 23S rRNA (three genotypes) sequences were positioned together with 'Candidatus Mycoplasma haemominutum'. The present study showed the first molecular evidence of infection by hemoplasmas in cats from MG and RO, contributing to a better understanding of the epidemiology of feline hemoplasmosis agents in Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e003925"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187081/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular detection and characterization of Trichomonas spp. in wild birds in the Brazilian Pantanal. 巴西潘塔纳尔野生鸟类毛滴虫的分子检测与鉴定。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-20 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025033

Amanda Garcia Pereira, Sarah Raquel Jesus Santos Simões, Maitê Cardoso Coelho da Silva, Leticia Colovatti Mariano, Ana Cláudia Calchi, Amir Salvador Alabi Cordova, Tiago Valadares Ferreira, João Batista Pinho, Alan Fecchio, Ricardo Bassini-Silva, Ana Carolina Castro-Santiago, Jeffrey Bell, Rosangela Zacarias Machado, Marcos Rogério André, Karin Werther

{"title":"Molecular detection and characterization of Trichomonas spp. in wild birds in the Brazilian Pantanal.","authors":"Amanda Garcia Pereira, Sarah Raquel Jesus Santos Simões, Maitê Cardoso Coelho da Silva, Leticia Colovatti Mariano, Ana Cláudia Calchi, Amir Salvador Alabi Cordova, Tiago Valadares Ferreira, João Batista Pinho, Alan Fecchio, Ricardo Bassini-Silva, Ana Carolina Castro-Santiago, Jeffrey Bell, Rosangela Zacarias Machado, Marcos Rogério André, Karin Werther","doi":"10.1590/S1984-29612025033","DOIUrl":"10.1590/S1984-29612025033","url":null,"abstract":"Members of the family Trichomonadidae, particularly Trichomonas gallinae, are globally distributed avian parasites that primarily infect birds from the orders Columbiformes, Falconiformes, and Strigiformes. Although infections in Passeriformes are often subclinical, clinical cases have been reported. Transmission occurs through direct contact or indirectly via contaminated food or water, enabling infection across various avian orders, including Anseriformes, Falconiformes, Galliformes, Gruiformes, Passeriformes, Piciformes, Psittaciformes, and Strigiformes. This study aimed to assess the occurrence and genetic diversity of Trichomonas spp. in 246 wild birds captured in Poconé, Mato Grosso, located in the Brazilian Pantanal. Oropharyngeal swab samples were collected in July 2022 from birds belonging to six different orders. Following DNA extraction, molecular detection was performed targeting the ITS1/5.8S/ITS2 ribosomal region. Of the total samples, 107 (43.5%) tested positive, with high prevalence in Passeriformes (40.8%), Cuculiformes (75%), and Columbiformes (63.2%). Phylogenetic analysis using Bayesian inference placed the 18 obtained sequences, representing five distinct haplotypes, into three separate clades of T. gallinae. In conclusion, Trichomonas DNA was detected in asymptomatic birds from three different avian orders. The high infection prevalence and haplotype sharing among species highlight the widespread distribution and potential transmission of T. gallinae among wild birds in the Brazilian Pantanal.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e001825"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12187080/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gastrointestinal parasites of captive and free-ranging wild animals in the state of Mato Grosso do Sul. 南马托格罗索州圈养和自由放养野生动物的胃肠道寄生虫。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025030

Angela Maria da Silva, Jordana Toqueto, Nayara Carvalho, Dirceu Guilherme de Souza Ramos, Andréia Lima Tomé Melo

{"title":"Gastrointestinal parasites of captive and free-ranging wild animals in the state of Mato Grosso do Sul.","authors":"Angela Maria da Silva, Jordana Toqueto, Nayara Carvalho, Dirceu Guilherme de Souza Ramos, Andréia Lima Tomé Melo","doi":"10.1590/S1984-29612025030","DOIUrl":"10.1590/S1984-29612025030","url":null,"abstract":"Wild animals are hosts for many species of parasites which act as opportunistic or primary agents of disease. This study investigated the presence of endoparasites in the gastrointestinal tracts of wild animals from the State of Mato Grosso do Sul in the Cerrado, Atlantic Forest, and Pantanal biomes. From October 2022 to June 2024, fecal samples were collected from wild animals at two locations: Wildlife Rehabilitation Center (CRAS) in Campo Grande and the Paragem Municipal Natural Park (PNMP) in Dourados. A total of 109 fecal samples were collected: 96 from CRAS and 13 from PNMP and techniques of flotation and sedimentation were used. The prevalence of parasitism was 51.04% and 23.07% in the captive and free-living animals, respectively. The parasites found were nematodes (Strongyloidea, Ancylostomatidae, Ascaridida, Ascaropsinae, Toxocara spp., Capillarinae, Trichuris spp., Ascaris suum, Oxyurida, and nematode larvae), cestodes (Dipylidium spp. and Spirometra spp.), trematodes (Paragonimus spp.), and protozoa (Entamoeba spp., Eimeria spp., Cystoisospora spp., and Coccidia). The highest prevalence was observed for helminths of the Strongyloidea and Ancylostomatidae, followed by Coccidia and Entamoeba spp.. We highlight the importance of such studies to better understand the circulation of etiological agents that may pose a risk to animal and human health.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e000825"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164656/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of Eimeria spp. in goats from northern Paraná, Brazil. 巴西巴拉那北部<e:1>山羊艾美耳虫流行病学。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025025

Carla Adriele Rodrigues, Jonas Correia de Araujo Júnior, Jorgeana Guadanhini Negrizolli, Maria Júlia Papin Filadelfo, Mateus Siqueira Pyles, Ana Carolina Cavalieri, Luiz Daniel de Barros, Fernando de Souza Rodrigues, João Luis Garcia

{"title":"Prevalence of Eimeria spp. in goats from northern Paraná, Brazil.","authors":"Carla Adriele Rodrigues, Jonas Correia de Araujo Júnior, Jorgeana Guadanhini Negrizolli, Maria Júlia Papin Filadelfo, Mateus Siqueira Pyles, Ana Carolina Cavalieri, Luiz Daniel de Barros, Fernando de Souza Rodrigues, João Luis Garcia","doi":"10.1590/S1984-29612025025","DOIUrl":"10.1590/S1984-29612025025","url":null,"abstract":"This study aimed to evaluate the presence, identify Eimeria species, and epidemiological aspects associated with the infection in goat herds in northern Paraná, Brazil. A total of 384 fecal samples were collected from goats of different breeds, ages, and sexes from eight farms. An epidemiological questionnaire about rearing system (semi-intensive or intensive), age of the animals (up to 6 months or over 6 months), and type of floor in the pen (dirt or slatted) was used to evaluate the epidemiological aspects associated with Eimeria spp. infection. The McMaster technique was used to count Eimeria spp. oocysts. After oocyst counting, the samples were separated for sporulation and species identification. In total, 82.3% (316/384) of the samples showed positive results. For OPG, 37% of the animals exhibited counts >1,000 OPG (max.63600 OPG), whereas 63% had counts <1,000 OPG. Animals from semi-intensive production systems had high oocyst counts (mean-2139 OPG). Goats raised in pens with slatted floors (mean-1158 OPG) have lower average oocyst counts than those raised in facilities with dirt floors (mean-2714 OPG). Eight Eimeria species were identified E. arloingi (23.9%), E. apsheronica (19.7%), E. ninakohlyakimovae (14.3%), E. alijevi (12%), E. caprina (10%), E. jolchijevi (9%), E. hirci (6.9%) and E. christenseni (4.2%). This study showed a high prevalence of Eimeria spp. in goats in northern Paraná, Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e022524"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164657/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gill infection in Macrodon ancylodon and Nebris microps caused by Lernanthropus sp. (Copepoda: Lernantropidae) in the Brazilian Amazon. 巴西亚马孙河流域长齿巨齿鲨和小内布蝇鳃感染的研究。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025029

Alessandra Epifanio Rodrigues, Gilmar da Silva Pantoja, Vanessa Mayara Souza Pamplona, José Ledamir Sindeaux Neto, Michele Velasco

{"title":"Gill infection in Macrodon ancylodon and Nebris microps caused by Lernanthropus sp. (Copepoda: Lernantropidae) in the Brazilian Amazon.","authors":"Alessandra Epifanio Rodrigues, Gilmar da Silva Pantoja, Vanessa Mayara Souza Pamplona, José Ledamir Sindeaux Neto, Michele Velasco","doi":"10.1590/S1984-29612025029","DOIUrl":"10.1590/S1984-29612025029","url":null,"abstract":"The research reports the occurrence and morphologically describes Lernanthropus sp. in the gills of sciaenid fish Macrodon ancylodon and Nebris microps. Specimens of the species were collected and examined. Ectoparasitic copepods with morphological characteristics inherent to the genus Lernanthropus were observed on the gills of the hosts and exhibited the same parasitic prevalence (25%). The copepod in M. ancylodon was male and did not exhibit a sac-like projection with eggs, with poorly developed antennae in the anterior region, a body measuring 4.33 mm in length, and a head distinct from the trunk measuring 0.96 mm (length) x 1.15 mm (width). While in N. micros, it was female, with a very evident sacuolar projection, with more developed and larger antennae than the specimen obtained in M. ancylodon, the anterior part of the trunk (2.1 mm) narrower than the posterior (3.2 mm) and a continuous plate to the trunk in an oval circular shape, with a sacuolar projection (4 mm). It should be noted that until now, there has been no report of the occurrence of this genus in the hosts studied in the state of Pará, which makes this work an important record for the knowledge of the ichthyosanitary status in this region.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e022424"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164654/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of therapeutic baths with Piper callosum essential oil against monogeneans of Colossoma macropomum: hematological and histopathological assessments. 花椒精油治疗浴对巨像单系虫的疗效：血液学和组织病理学评估。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025031

Carliane Maria Guimarães Alves, Raimundo Rosemiro Jesus Baia, Paulo Venicius Nascimento Santos, Amanda Mendes Pacheco, Marcela Nunes Videira, Francisco Célio Maia Chaves, Eliane Tie Oba Yoshioka, Marcos Tavares-Dias

{"title":"Efficacy of therapeutic baths with Piper callosum essential oil against monogeneans of Colossoma macropomum: hematological and histopathological assessments.","authors":"Carliane Maria Guimarães Alves, Raimundo Rosemiro Jesus Baia, Paulo Venicius Nascimento Santos, Amanda Mendes Pacheco, Marcela Nunes Videira, Francisco Célio Maia Chaves, Eliane Tie Oba Yoshioka, Marcos Tavares-Dias","doi":"10.1590/S1984-29612025031","DOIUrl":"10.1590/S1984-29612025031","url":null,"abstract":"As chemotherapeutants used in control and treatment of monogeniosis can cause environmental damage and risks to human health, there is need of compounds alternatives effective and safe to this parasitosis. Essential oils are herbal compounds with good degradability in nature and effectiveness, and resistance absence that can be alternatives to chemotherapeutants. This study aimed to report the first trial on the effects of therapeutic baths with Piper callosum essential oil anti-monogeneans in fish. Colossoma macropomum (tambaqui) were subjected to six baths with 100 mg/L of P. callosum essential oil, each lasting 20 minutes per day (short duration), with 24-hour intervals between baths. Therapeutic baths demonstrated efficacy of 83.6% against monogeneans of tambaqui. Fish submitted to therapeutic baths had reduction statistically significant in the plasma levels of total proteins, similar to the control group exposed to water from culture tank + 70% alcohol. The toxicity of P. callosum essential oil was low as there were no significant blood or histopathological changes that compromised gill function in the treated fish. Due to high efficacy of 100 mg/L of P. callosum essential oil in controlling monogenean infestations, six short therapeutic baths on alternate days may be recommended as anti-monogeneans strategy for tambaqui.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e002625"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil. 巴西南部Columba livia Gmelin， 1789 （columbiforma: Columbidae）中columbius columbiae Kruse， 1890（血孢虫目：血孢虫科）的分子检测。

IF 1.3 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-06-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025027

Carolina Caetano Dos Santos, Natália Soares Martins, Nilséia Feijó da Silva, Julia Somavilla Lignon, Kauê Rodriguez Martins, Oluwagbemiga Ademola Dada, Rodrigo Casquero Cunha, Fábio Raphael Pascoti Bruhn, Diego Moscarelli Pinto, Felipe Geraldo Pappen, Carolina Silveira Mascarenhas, Nara Amélia da Rosa Farias

{"title":"Molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil.","authors":"Carolina Caetano Dos Santos, Natália Soares Martins, Nilséia Feijó da Silva, Julia Somavilla Lignon, Kauê Rodriguez Martins, Oluwagbemiga Ademola Dada, Rodrigo Casquero Cunha, Fábio Raphael Pascoti Bruhn, Diego Moscarelli Pinto, Felipe Geraldo Pappen, Carolina Silveira Mascarenhas, Nara Amélia da Rosa Farias","doi":"10.1590/S1984-29612025027","DOIUrl":"10.1590/S1984-29612025027","url":null,"abstract":"The aim of this study is to describe the molecular detection of Haemoproteus columbae Kruse, 1890 (Haemospororida: Haemoproteidae) in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) in southern Brazil, and to determine the prevalence of the haemosporidian by analyzing the infection in relation to birds' age, sex, and place of origin. Blood samples were collected from 57 birds captured in the municipalities of Pelotas and Rio Grande, in the state of Rio Grande do Sul, Brazil, between May and November 2022. Microscopic examination and Polymerase Chain Reaction (PCR) based on the mitochondrial cytochrome b gene (CytB) revealed that the prevalence of the haemosporidian was 92.98% (53/57). In the sequencing analysis, the samples showed 98.87-99.08% similarity to the species H. columbae and a new lineage was recorded. No differences in infection rates were observed in relation to age, sex, or place of origin of the birds.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 2","pages":"e018524"},"PeriodicalIF":1.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164655/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144327479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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