Revista Brasileira De Parasitologia Veterinaria最新文献

First detection of Trypanosoma vivax in small ruminants in the state of Bahia. 巴伊亚州首次在小反刍动物中发现间日锥虫。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-10-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025053

Jaqueline Queiroz Amorim Brandão, Hllytchaikra Ferraz Fehlberg, Cássia Matos Ribeiro, Tainara Ferreira Barbosa, Ernesto Souza Oliveira, Rebeca Mabel Oliveira Vieira, Quércia Dos Santos Morais, Lucas José Luduverio Pizauro, Wendell Marcelo de Souza Perinotto, Joselito Nunes Costa, George Rego Albuquerque

{"title":"First detection of Trypanosoma vivax in small ruminants in the state of Bahia.","authors":"Jaqueline Queiroz Amorim Brandão, Hllytchaikra Ferraz Fehlberg, Cássia Matos Ribeiro, Tainara Ferreira Barbosa, Ernesto Souza Oliveira, Rebeca Mabel Oliveira Vieira, Quércia Dos Santos Morais, Lucas José Luduverio Pizauro, Wendell Marcelo de Souza Perinotto, Joselito Nunes Costa, George Rego Albuquerque","doi":"10.1590/S1984-29612025053","DOIUrl":"https://doi.org/10.1590/S1984-29612025053","url":null,"abstract":"The aim of this study was to verify the prevalence of Trypanosoma vivax using hematological and molecular techniques and to evaluate possible associated risk factors in goats and sheep. A total of 192 animals from 14 farms in the municipalities of São Domingos and Valente da Bahia were used. Blood was collected from each animal to prepare stained blood smears and verify the presence of Trypanosoma spp. trypomastigotes testing and molecular (polymerase chain reaction [PCR], and sequencing). All blood smears were negative for trypomastigote forms of Trypanosoma sp. In the molecular analysis, nested-PCR detected 57.8% (111/192) of the samples as positive for Trypanosoma spp. and 10.9% (21/192) as positive for T. vivax using a specific primer. Sequencing indicated 97% - 99% similarity with catL of T. vivax. The use of shared needles was significant in the analysis of risk factors (p=0.049). Thus, T. vivax is present in small ruminants in Bahia, making it necessary for producers to be careful, especially when sharing needles, to avoid transmission between animals.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e009325"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145304041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variation in the hatching rate of larvae of four tick species from laboratory colonies. 实验室四种蜱类幼虫孵化率的变化。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-10-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025055

Ygor Henrique da Silva, Marisa Beatriz da Silva Rocha, Ester Oliozi Marré, Manuela Pimentel da Motta, Brena Gava Guimarães, Thais Ribeiro Correia Azevedo, Guilherme Marcondes Klafke, Barbara Rauta de Avelar, Diefrey Ribeiro Campos, Fabio Barbour Scott

{"title":"Variation in the hatching rate of larvae of four tick species from laboratory colonies.","authors":"Ygor Henrique da Silva, Marisa Beatriz da Silva Rocha, Ester Oliozi Marré, Manuela Pimentel da Motta, Brena Gava Guimarães, Thais Ribeiro Correia Azevedo, Guilherme Marcondes Klafke, Barbara Rauta de Avelar, Diefrey Ribeiro Campos, Fabio Barbour Scott","doi":"10.1590/S1984-29612025055","DOIUrl":"https://doi.org/10.1590/S1984-29612025055","url":null,"abstract":"The objective of this study was to evaluate the hatching percentage of tick larvae of Amblyomma sculptum, Dermacentor nitens, Rhipicephalus linnaei, and three strains of Rhipicephalus microplus. The egg masses laid by females of each tick species were weighed in different amounts (125, 250 and 500mg), placed in adapted 3 and 5 mL syringes, and incubated at 27°C and 80% relative humidity for 25 days for A. sculptum and 21 days for the remaining species. After this period, larval hatching rate was evaluated and data were analyzed through correlation and comparison between groups. The results showed that the average hatching rates varied from 27.9% to 42.2% for A. sculptum, 86.6% to 87.7% for D. nitens, 74.4% to 80.0% for R. linnaei, and R. microplus: 75.3% to 82.6% (UFRRJ strain), 64.6% to 72.2% (Mozo strain), and 71.8% to 75.2% (Porto Alegre strain). Although statistically significant differences were observed in the mean percentages between groups, the correlation was weak. We concluded that the weight of the egg masses and the volume of the containers did not significantly affect larval hatching.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e006925"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145304023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fatal toxoplasmosis in Coendou spinosus from Southern Brazil: clinical, pathological, and genotype findings. 巴西南部棘豆致命弓形虫病：临床、病理和基因型发现。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-10-13 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025051

Renata Fagundes-Moreira, Karina Oberrather, Luan Henker, Luiza Presser Ehlers, Fagner D'ambroso Fernandes, Diego Ferreira Cardoso, Alisson da Rosa Boyink, Fernanda Silveira Flores Vogel, Saulo Petinatti Pavarini, Luciana Sonne, João Fabio Soares

{"title":"Fatal toxoplasmosis in Coendou spinosus from Southern Brazil: clinical, pathological, and genotype findings.","authors":"Renata Fagundes-Moreira, Karina Oberrather, Luan Henker, Luiza Presser Ehlers, Fagner D'ambroso Fernandes, Diego Ferreira Cardoso, Alisson da Rosa Boyink, Fernanda Silveira Flores Vogel, Saulo Petinatti Pavarini, Luciana Sonne, João Fabio Soares","doi":"10.1590/S1984-29612025051","DOIUrl":"https://doi.org/10.1590/S1984-29612025051","url":null,"abstract":"Although toxoplasmosis is well documented in New World non-human primates, data on its clinical impact and genotypic diversity in neotropical rodents remain limited. This study investigated fatal toxoplasmosis in Coendou spinosus through histopathological, immunohistochemical, and molecular analyses, with genotypic characterization of the infecting strain. Between September 2016 and October 2019, eight individuals were analyzed, including rescued animals and post-mortem cases from a local zoo in Southern Brazil. Tissue samples underwent histopathology and immunohistochemistry using anti-T. gondii antibodies, and molecular assays were conducted by nested PCR and PCR-Restriction Fragment Length Polymorphism (PCR-RFLP). Severe necrotizing lesions, especially in the central nervous system, were observed in five animals, associated with abundant bradyzoites and tachyzoites. Molecular detection confirmed T. gondii DNA in all animals, and subsequent genotyping revealed a previously undescribed atypical strain in the animal CS8. These findings demonstrate the high mortality associated with T. gondii infections, presenting documented clinical signs of toxoplasmosis in C. spinosus and highlighting its vulnerability to zoonotic pathogens, particularly due to habitat encroachment and increased interactions with humans and other wildlife.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e006725"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145304013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular survey of the haemosporidians Haemoproteus and Leucocytozoon in Culicoides (Diptera: Ceratopogonidae) from the Brazilian Amazon. 巴西亚马逊地区库蠓血孢子虫、血变形虫和白细胞虫的分子调查。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-09-29 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025048

Daniel Antônio Braga Lee, Israel de Souza Pinto, Paulo Vitor Cadina Arantes, Maria Clara Alves Santarém, Maria Luiza Felippe-Bauer, João Vitor Dos Santos Alves da Silva, Rosangela Zacarias Machado, Marcos Rogério André

{"title":"Molecular survey of the haemosporidians Haemoproteus and Leucocytozoon in Culicoides (Diptera: Ceratopogonidae) from the Brazilian Amazon.","authors":"Daniel Antônio Braga Lee, Israel de Souza Pinto, Paulo Vitor Cadina Arantes, Maria Clara Alves Santarém, Maria Luiza Felippe-Bauer, João Vitor Dos Santos Alves da Silva, Rosangela Zacarias Machado, Marcos Rogério André","doi":"10.1590/S1984-29612025048","DOIUrl":"10.1590/S1984-29612025048","url":null,"abstract":"Haemosporidians belonging to the subgenus Haemoproteus (Parahaemoproteus) and the genus Leucocytozoon rely on dipteran vectors for transmission, with biting midges (Culicoides spp.) and black flies (Simuliidae), respectively, playing essential roles in their life cycles. However, little is known about the potential role of Culicoides species as vectors for haemosporidians outside Europe and Asia. This study aimed to investigate the presence of Haemoproteus spp. and Leucocytozoon spp. DNA in Culicoides spp. from the Brazilian Amazon. A total of 345 midges (95 Culicoides foxi, 218 Culicoides hylas, and 32 Culicoides leopoldoi) were collected between February 2022 and February 2023 in the Amazon National Park, Pará. Specimens were morphologically identified, and DNA was extracted using the TRIzol technique. PCR targeting the endogenous cox-1 gene confirmed successful DNA extraction in 86.7% (299/345) of samples. Nested PCR assays targeting the cytB gene of Haemoproteus spp. and Leucocytozoon spp. did not detect DNA in any sample. The absence of detection suggests that the sampled Culicoides species are unlikely vectors, possibly due to feeding preferences or ecological limitations. Future studies targeting both DNA and sporozoites in salivary glands of engorged female Culicoides spp. are needed to clarify the vectors involved in the transmission of haemosporidians.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e005525"},"PeriodicalIF":1.2,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12500309/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207795","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

First record of Lipeurus caponis (Psocodea: Ischnocera: Philopteridae) parasitizing domestic chickens (Gallus gallus domesticus) in Brazilian Amazon. 在巴西亚马逊河流域首次记录了肉鸡寄生（肉鸡科：肉鸡目：肉鸡科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025040

José Vicente Ferreira Neto, Marcelo Cutrim Moreira de Castro, Alexandre Levi Monteiro Santana, Ahana Maitra, Felipe Arley Costa Pessoa

{"title":"First record of Lipeurus caponis (Psocodea: Ischnocera: Philopteridae) parasitizing domestic chickens (Gallus gallus domesticus) in Brazilian Amazon.","authors":"José Vicente Ferreira Neto, Marcelo Cutrim Moreira de Castro, Alexandre Levi Monteiro Santana, Ahana Maitra, Felipe Arley Costa Pessoa","doi":"10.1590/S1984-29612025040","DOIUrl":"10.1590/S1984-29612025040","url":null,"abstract":"Lice are obligatory ectoparasites of birds and mammals, possessing mouthparts adapted for feeding on the blood and/or keratinized tissue of their hosts. Recording parasites that may cause economic and sanitary losses in the country's poultry industry is of utmost importance. For this reason, in the present study, we report the first record of Lipeurus caponis (Linnaeus, 1758) parasitizing domestic chickens in the Brazilian Amazon, specifically in the municipality of Autazes, state of Amazonas. The insect was collected using entomological forceps and deposited in a 1.5 ml microtube containing absolute ethanol on a rural property located on the banks of the Paraná Madeirinha River, where chickens are raised in a colonial system, coexisting with animals of different species and fed a diet based on whole corn grains. A male specimen of L. caponis was collected from the interscapular tract during the rainy season. Given this finding, we highlight the importance of entomological surveillance to prevent potential epizootic outbreaks and mitigate impacts on regional poultry production.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e004425"},"PeriodicalIF":1.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12498534/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145076390","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

First record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon. 首次在亚马逊河东部的各种钝眼虫和goeldii钝眼虫中发现贝氏立克次体。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-09-01 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025043

Izabela Mesquita Araújo, Kelly Karoline Gomes do Nascimento, Mateus Borges Silva, Isis Abel, Ana Cristina Mendes-Oliveira, Bruna de Azevedo Baêta, Claudia Bezerra da Silva, Matheus Dias Cordeiro

{"title":"First record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon.","authors":"Izabela Mesquita Araújo, Kelly Karoline Gomes do Nascimento, Mateus Borges Silva, Isis Abel, Ana Cristina Mendes-Oliveira, Bruna de Azevedo Baêta, Claudia Bezerra da Silva, Matheus Dias Cordeiro","doi":"10.1590/S1984-29612025043","DOIUrl":"10.1590/S1984-29612025043","url":null,"abstract":"This study investigated the presence of Rickettsia spp., Ehrlichia spp., Anaplasma spp., and Borrelia spp. DNA in questing ticks collected from a forest fragment under constant anthropogenic pressure in the state of Pará, Brazil. The fragment was divided into three zones: interior, edge, and surrounding matrix. Ticks were collected in all zones using flannel drag sampling, flannel leggings, and CO2-baited traps. Nymphs and adults were morphologically identified using taxonomic keys, while larvae were subjected to molecular identification. DNA extracted from the ticks was tested for the target pathogens using polymerase chain reaction (PCR). In total, 561 questing ticks (525 larvae, 29 nymphs, and 7 adults) were collected, representing eight species: Amblyomma cajennense sensu stricto, Amblyomma calcaratum, Amblyomma geayi, Amblyomma goeldii, Amblyomma humerale, Amblyomma naponense, Amblyomma pacae, and Amblyomma varium. Rickettsia bellii was detected in one A. varium larva and one A. goeldii larva. All samples tested negative for Ehrlichia spp., Anaplasma spp., and Borrelia spp. This is the first report of R. bellii in A. varium and A. goeldii in Brazil.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e004025"},"PeriodicalIF":1.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12435583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975592","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

First record of Ixodes luciae (Acari: Ixodidae) parasitizing Marmosops noctivagus (Didelphimorphia: Didelphidae) in South America. 在南美洲首次记录到露珠硬蚊（蜱螨亚纲：硬蚊科）寄生于夜绵鼠（双翅蝗科：双翅蝗科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025039

Marcelo Cutrim Moreira de Castro, José Albertino Rafael, Fernando de Castro Jacinavicius, Darci Moraes Barros-Battesti, Ricardo Bassini-Silva

引用次数: 0

A new Echimyidae (Mammalia, Rodentia) host of Amblyomma ovale Koch, 1844 in the eastern Brazilian Amazon, and a pathogen survey. 1844年巴西东部亚马逊地区卵圆圆钝足虫新寄主及病原菌调查。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025044

Darlison Chagas-de-Souza, Cláudia Regina Silva, Tássio Alves-Coêlho, Ricardo Bassini-Silva, Fernando de Castro Jacinavicius, Marcelo Bahia Labruna, Lúcio André Viana

{"title":"A new Echimyidae (Mammalia, Rodentia) host of Amblyomma ovale Koch, 1844 in the eastern Brazilian Amazon, and a pathogen survey.","authors":"Darlison Chagas-de-Souza, Cláudia Regina Silva, Tássio Alves-Coêlho, Ricardo Bassini-Silva, Fernando de Castro Jacinavicius, Marcelo Bahia Labruna, Lúcio André Viana","doi":"10.1590/S1984-29612025044","DOIUrl":"10.1590/S1984-29612025044","url":null,"abstract":"The genus Amblyomma has the largest number of tick species in the Neotropical region. Amblyomma ovale displays high ecological plasticity and can be found in different habitats and a variety of vertebrate hosts. Small mammals of the family Echimyidae have been identified as hosts for this species. However, studies investigating their role as hosts of these ticks in the Amazon region are lacking. The present study aims to record the parasitic association between A. ovale and a Echimyidae species (Proechimys cuvieri) in the extreme north of the Brazilian Amazon, providing information about the research of potentially pathogenic organisms. Eight nymphs were collected and subjected to taxonomic and molecular identification, and pathogen screening was performed on the family Anaplasmataceae agents and the genera Bartonella, Coxiella, Hepatozoon, Mycoplasma, and Rickettsia. All the ticks were identified morphologically and molecularly as A. ovale, but PCR assays for pathogen detection showed no positive results for the target genes. This is the first time that A. ovale has been associated with P. cuvieri.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e005125"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429336/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975618","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

Pseudoproleptus sp. Larvae (Nematoda: Cystidicolidae) parasitizing Macrobrachium amazonicum (Decapoda: Crustacea) in the state of Pará, Northern Brazil. 巴西北部帕尔<e:1>州寄生于亚马逊大臂虾（十足目：甲壳纲）的Pseudoproleptus sp.幼虫（线虫纲：囊虫科）。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025042

Patrick José Colares Cardoso, Liane Rodrigues Galvão de Cristo, Yan Rafael Gillet Santa Brigida, Elane Guerreiro Giese, Raul Henrique da Silva Pinheiro

{"title":"Pseudoproleptus sp. Larvae (Nematoda: Cystidicolidae) parasitizing Macrobrachium amazonicum (Decapoda: Crustacea) in the state of Pará, Northern Brazil.","authors":"Patrick José Colares Cardoso, Liane Rodrigues Galvão de Cristo, Yan Rafael Gillet Santa Brigida, Elane Guerreiro Giese, Raul Henrique da Silva Pinheiro","doi":"10.1590/S1984-29612025042","DOIUrl":"10.1590/S1984-29612025042","url":null,"abstract":"Third-stage larvae of a nematode species were found encapsulated in the cephalothorax of Macrobrachium amazonicum from the Guamá River, municipality of Belém, in the state of Pará, northern Brazil. Of a total of 120 specimens of M. amazonicum that were caught, 15.8% were parasitized with Cystidicolidae larvae that had morphological characteristics compatible with the genus Pseudoproleptus, such as rounded cephalic end, two pseudolips, slit-shaped buccal opening with four large submedian lips, vestibule with prostom and conical tail with a small mucron. The low presence of Pseudoproleptus larvae did not affect the growth of the shrimp, but these results cannot be generalized since the sampling was relatively low. Therefore, so the occurrence of this nematode could still negatively affect the growth and reproduction of these shrimp, leading to their death, which could directly affect their population dynamics and consumption by the Amazonian riverside population. Finally, we recommend more analyses with a greater sampling effort.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e002025"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975558","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 parasitism in fecal samples from maned wolves (Chrysocyon brachyurus) and domestic dogs in the region of Serra da Canastra National Park, MG. 加拿大塞拉达卡纳斯特拉国家公园地区鬃狼（Chrysocyon brachyurus）和家犬粪便样本中寄生虫的流行情况。

IF 1.2 4区农林科学

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-08-25 eCollection Date: 2025-01-01 DOI: 10.1590/S1984-29612025041

Daphnne Chelles Marins, Sávio Freire Bruno, Nathalie Costa da Cunha, Luciano Antunes Barros

{"title":"Prevalence of parasitism in fecal samples from maned wolves (Chrysocyon brachyurus) and domestic dogs in the region of Serra da Canastra National Park, MG.","authors":"Daphnne Chelles Marins, Sávio Freire Bruno, Nathalie Costa da Cunha, Luciano Antunes Barros","doi":"10.1590/S1984-29612025041","DOIUrl":"10.1590/S1984-29612025041","url":null,"abstract":"The Serra da Canastra National Park is a Conservation Unit where domestic dogs live near populations of maned wolves (Chrysocyon brachyurus). Recognizing the importance of parasitic diseases in endangered species such as the maned wolf, our research objective was to identify and determine the prevalence of parasites in fresh fecal samples collected in January and July 2021 from both canids that inhabit the region. The dog feces were collected after the administration of a 5% glycerin enema and evacuation, while the maned wolf feces was collected along the park's roads. For diagnosis, Sheather's and Hoffman, Pons and Janer (HPJ) parasitological techniques were applied. Among the dog samples, 22.5% (9/40) tested positive for at least one parasite species, mainly 44.4% (4/9) to hookworm eggs, 22.2% (2/9) to Toxocara sp. and 11.1% (1/9) to Cystoisospora sp. and trematode eggs. Among maned wolves, 75% (30/40) of samples were positive to capillariid eggs with 86.6% (26/30), followed by 16.6% (5/30) to Toxocara sp., 10% (3/30) to hookworm eggs and Dioctophyma renale, 6.6% (2/30) to Cystoisospora sp., trematode eggs and spirurid eggs, 3.3% (1/30) to Physaloptera sp. and acanthocephalan eggs.","PeriodicalId":48990,"journal":{"name":"Revista Brasileira De Parasitologia Veterinaria","volume":"34 3","pages":"e020224"},"PeriodicalIF":1.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12429337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975577","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