Veterinary parasitology, regional studies and reports最新文献_第2页

Effects of zinc oxide nanoparticle supplementation in young sheep naturally infected with gastrointestinal nematodes 补充氧化锌纳米颗粒对自然感染胃肠道线虫的幼羊的影响

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-09-01 DOI: 10.1016/j.vprsr.2025.101340

Mateus O. Mena , Victor M. Moellmann , César C. Bassetto , José G.G. Lins , Murilo A. Fernandes , Gabriele R. Moreira , Ana Cláudia A. Albuquerque , Elisabete A.N. Fernandes , Helder Louvandini , Alessandro F.T. Amarante

{"title":"Effects of zinc oxide nanoparticle supplementation in young sheep naturally infected with gastrointestinal nematodes","authors":"Mateus O. Mena , Victor M. Moellmann , César C. Bassetto , José G.G. Lins , Murilo A. Fernandes , Gabriele R. Moreira , Ana Cláudia A. Albuquerque , Elisabete A.N. Fernandes , Helder Louvandini , Alessandro F.T. Amarante","doi":"10.1016/j.vprsr.2025.101340","DOIUrl":"10.1016/j.vprsr.2025.101340","url":null,"abstract":"<div><div>The experiment aimed to evaluate the effects of daily supplementation with 150 mg of ZnO-NP on performance, hematological and immunological responses of lambs naturally infected with GIN under grazing conditions. Given the field-based approach adopted, the study was designed as an exploratory trial to generate preliminary evidence and hypotheses for future controlled experiments, acknowledging that individual feed intake was not measured and, therefore, the effect of ZnO-NP cannot be fully isolated from variations in voluntary concentrate intake. Each animal of one group (<em>n</em> = 14) was daily supplemented for 127 days with a capsule containing 150 mg of ZnO-NP in powder (40 nm), while a control group (<em>n</em> = 13) was kept without receiving Zn supplementation. Animals supplemented with Zn showed higher PCV and TPP values in the most critical period of infection, around day 70 of the trial, indicating increased resilience against GIN infections. Precisely during this period, animals that received Zn showed the highest values of blood eosinophils and Immunoglobulin G (IgG)-anti-<em>Haemonchus</em>. There was a tendency for a difference between groups in mean total body weight gain (<em>P</em> = 0.06), where the group supplemented with zinc oxide obtained the highest means. In conclusion, daily supplementation with 150 mg of ZnO-NP was associated with increased eosinophil counts and a tendency toward greater body weight gain in young sheep naturally infected with GIN.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101340"},"PeriodicalIF":1.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence and risk factors of mange mite (Sarcoptes and Demodex) infestations in small ruminants in Wolaita zone, southern Ethiopia 埃塞俄比亚南部Wolaita地区小反刍动物中螨（疥螨和蠕形螨）侵染的流行及危险因素

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-09-01 DOI: 10.1016/j.vprsr.2025.101341

Kisi Adugna Terefe , Daniel Mulu Mengistu , Dawit Nega Gobena

{"title":"Prevalence and risk factors of mange mite (Sarcoptes and Demodex) infestations in small ruminants in Wolaita zone, southern Ethiopia","authors":"Kisi Adugna Terefe , Daniel Mulu Mengistu , Dawit Nega Gobena","doi":"10.1016/j.vprsr.2025.101341","DOIUrl":"10.1016/j.vprsr.2025.101341","url":null,"abstract":"<div><div>Mite infections due to mange represent a major health concern for small ruminants, resulting in considerable financial impacts. To assess the prevalence and associated risk factors of mange mites in small ruminants within the Sodo Zuria and Humbo districts of the Wolaita zone, a cross-sectional study employing systematic random sampling was conducted between October 2024 and March 2025. Out of 246 animals examined, 10.16 % (25/246) were found to be infected with mange mites, with goats showing a prevalence of 14.40 % (18 out of 125) and sheep at 5.79 % (7 out of 121). The results indicated a higher infection rate among adult animals (12.16 %) compared to younger ones (7.14 %), and those from lowland areas (16 %) faced a greater prevalence than animals from highland regions (4.13 %). Significant statistical relationships (<em>p</em> < 0.05) were identified between the occurrence of mange mites and various factors, including environmental conditions, age, body site, and management practices. Among the different species of mites identified, <em>Sarcoptes</em> was the most common, accounting for 6.91 % of cases. This research highlights an escalating health threat posed by mites to small ruminants in the area, underscoring the urgent need for intervention strategies. It also stresses the importance of targeted acaricide applications and enhanced management practices in high-risk lowland agro-ecological zones.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101341"},"PeriodicalIF":1.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the drug-resistance genotypes of Dirofilaria immitis infections in Ontario dogs (2015–2016) 2015-2016年安大略省犬免疫dirofilia感染耐药基因型分析

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-09-01 DOI: 10.1016/j.vprsr.2025.101338

Dylan Engell , Andrew S. Peregrine , Catherine Bourguinat , Jennifer Ogeer , Tammy Hornak , Andria Jones , Jonas Goring , Bettina Kalisch , Jonathon D. Kotwa , Roger Prichard

{"title":"Evaluation of the drug-resistance genotypes of Dirofilaria immitis infections in Ontario dogs (2015–2016)","authors":"Dylan Engell , Andrew S. Peregrine , Catherine Bourguinat , Jennifer Ogeer , Tammy Hornak , Andria Jones , Jonas Goring , Bettina Kalisch , Jonathon D. Kotwa , Roger Prichard","doi":"10.1016/j.vprsr.2025.101338","DOIUrl":"10.1016/j.vprsr.2025.101338","url":null,"abstract":"<div><div>For more than 3 decades, macrocyclic lactone (ML) heartworm preventives have been extremely effective at preventing <em>Dirofilaria immitis</em> infections in dogs. Reports of loss of efficacy (LOE) of the MLs in the early 2000s led to in-depth research which identified the presence of resistant strains of <em>D. immitis</em> in the Southeast United States. Detailed genetic analysis of such parasites identified genetic markers for resistance. In order to evaluate the prevalence of these markers in Ontario infections, microfilariae (MF) from 39 Ontario dogs, 22 from a ML-naïve population and 17 from a ML-exposed population, were collected in 2015–2016, analyzed and compared. The ML-naïve population comprised stray dogs from an area near Caledonia, Ontario where heartworm preventives have historically been rarely used. The ML-exposed population comprised client-owned dogs from veterinary practices across Ontario where preventives are commonly used. Overall, MF with resistant markers (two single nucleotide polymorphisms [SNPs]) were found in 3/39 dogs. However, in only one of those infections were both SNPs associated with ML resistance present. There was no significant difference in prevalence of these genetic markers for resistance between the ML-naïve population and the ML-exposed population of dogs (<em>n</em> = 22 genotyped and <em>n</em> = 17 genotyped, respectively). Despite the low prevalence of infections with ML-resistant genotypes, the fact that none of the dogs in this study had traveled outside Ontario suggests that the infections with ML-resistant genotypes were locally acquired.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101338"},"PeriodicalIF":1.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating efficacy and strongyle egg reappearance period after ivermectin treatment in a Hungarian stud farm 评价在匈牙利种马场伊维菌素治疗后的疗效和圆形卵再现期

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-09-01 DOI: 10.1016/j.vprsr.2025.101336

Kinga Joó , Lilla Csanádi , Ágnes Povázsai , Martin K. Nielsen

{"title":"Evaluating efficacy and strongyle egg reappearance period after ivermectin treatment in a Hungarian stud farm","authors":"Kinga Joó , Lilla Csanádi , Ágnes Povázsai , Martin K. Nielsen","doi":"10.1016/j.vprsr.2025.101336","DOIUrl":"10.1016/j.vprsr.2025.101336","url":null,"abstract":"<div><div>Horses remain globally at constant risk of strongylid infections, with cyathostomins being particularly prevalent and abundant. It is essential to routinely monitor the efficacy of anthelmintics against equine nematodes. This study aimed to evaluate the efficacy of ivermectin against equine strongyles and estimate the strongyle egg reappearance period (ERP) following ivermectin treatment for the first time in Hungary. Fecal samples were collected from 57 Thoroughbred mares before treatment and at 2, 4, 5, 6, and 7 weeks post-treatment at a Hungarian National Stud Farm. Fecal egg counts (FECs) were determined using the Mini-FLOTAC technique. Fecal Egg Count Reduction (FECR) was calculated at two weeks post-treatment to evaluate efficacy using a Bayesian hierarchical model, and ERP was estimated following current guidelines. The FECR calculations did not indicate any evidence of resistance to ivermectin. Data suggested an ERP of 6 weeks, which is a notable reduction from historic data. Evaluation of two defined age groups suggested a longer ERP in the older group (12–20 years old). The decrease in ERP has emerged as a likely consequence of treatment-intensive deworming practices employed worldwide and represents a loss of anthelmintic performance. These findings underscore the need for implementing FEC-based management strategies in Hungary to preserve anthelmintic efficacy and reduce strongylid infection pressure on pastures.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101336"},"PeriodicalIF":1.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence and zoonotic potential of Enterocytozoon bieneusi in dogs and cats in Guangdong, China 广东犬、猫双胞虫患病率及人畜共患潜力

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-21 DOI: 10.1016/j.vprsr.2025.101334

Na Li, Xiangming Liu, Xiaoyu Dan, Jiayu Li, Rui Xu, Lihua Xiao, Yaoyu Feng, Yaqiong Guo

{"title":"Prevalence and zoonotic potential of Enterocytozoon bieneusi in dogs and cats in Guangdong, China","authors":"Na Li, Xiangming Liu, Xiaoyu Dan, Jiayu Li, Rui Xu, Lihua Xiao, Yaoyu Feng, Yaqiong Guo","doi":"10.1016/j.vprsr.2025.101334","DOIUrl":"10.1016/j.vprsr.2025.101334","url":null,"abstract":"<div><div>Dogs and cats are important reservoirs for the zoonotic pathogen <em>Enterocytozoon bieneusi</em>. In this study, fecal samples from 682 dogs and 424 cats in Guangdong Province, China, were examined for <em>E. bieneusi</em> by PCR targeting the internal transcribed spacer (ITS) of the rRNA gene. The overall infection rate was 31.5 % in dogs and 3.5 % in cats. Significantly higher infection rates were observed in dogs >6 months (31.0 %, 137/442, <em>χ</em><sup>2</sup> = 33.168, <em>P</em> = 0.000), female dogs (35.0 %, 114/326, <em>χ</em><sup><em>2</em></sup> = 22.669, <em>P</em> = 0.000), purebred dogs (29.7 %, 140/471, <em>χ</em><sup><em>2</em></sup> = 24.464, <em>P</em> = 0.000), dogs from the research center and shelters (52.3 %, 116/222, <em>P</em> = 0.000; 50.7 %, 71/140, <em>P</em> = 0.000). The genotypes detected in dogs included canine-adapted PtEb IX (<em>n</em> = 212) and WW8 (n = 2), and zoonotic Type IV (<em>n</em> = 1). In cats, Type IV was dominant (<em>n</em> = 12), followed by D (n = 2) and PtEb IX (n = 1). The genetic diversity in Type IV and D samples were further assessed by multilocus sequence typing at four microsatellite/minisatellite loci. Twelve multilocus genotypes (MLGs) were identified, suggesting inconsistent genotyping results among the loci. Population genetic analysis of the MLG data generated in this study and those from other hosts in previous studies revealed three distinct subpopulations. Subpopulation 1 and Subpopulation 3 contained <em>E. bieneusi</em> from monkeys and fur animals, respectively. In contrast, Subpopulation 2 contained <em>E. bieneusi</em> from humans and cats. This suggests that <em>E. bieneusi</em> in cats and in humans is genetically related and has the potential for zoonotic transmission.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101334"},"PeriodicalIF":1.4,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rangelia vitalii in naturally infected dogs in southern Brazil: clinical classification of the disease into acute and subacute phases 巴西南部自然感染犬体内的重要Rangelia：疾病分为急性期和亚急性期的临床分类

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-19 DOI: 10.1016/j.vprsr.2025.101333

Felipe Carniel , Gustavo Willian Pandolfo , Paulo E. Ferian , Julieta Volpato , Maysa Garlet Nunes Xavier , Mariângela Lovatel , Marília Luciani , Eloiza Zoboli , João Fabio Soares , Renata Assis Casagrande

{"title":"Rangelia vitalii in naturally infected dogs in southern Brazil: clinical classification of the disease into acute and subacute phases","authors":"Felipe Carniel , Gustavo Willian Pandolfo , Paulo E. Ferian , Julieta Volpato , Maysa Garlet Nunes Xavier , Mariângela Lovatel , Marília Luciani , Eloiza Zoboli , João Fabio Soares , Renata Assis Casagrande","doi":"10.1016/j.vprsr.2025.101333","DOIUrl":"10.1016/j.vprsr.2025.101333","url":null,"abstract":"<div><div>Canine rangeliosis, caused by <em>Rangelia vitalii</em>, is an extravascular hemolytic disease. This study aimed to establish a clinical classification of the disease into acute and subacute phases and to describe the clinical, hematological, and pathological findings in naturally infected dogs. Eighteen dogs were included and submitted a complete blood count, serum biochemistry, ear margin blood smear, abdominal ultrasonography, polymerase chain reaction for <em>R. vitalii</em> and <em>Babesia</em> spp., and three dogs were necropsied. All animals were positive for <em>R. vitalii</em> and negative for <em>Babesia</em> spp. The most consistent findings in the acute phase included thrombocytopenia, macrocytosis, Howell-Jolly bodies, coarse hypoechoic splenomegaly, hyperthermia, and tachycardia. In the subacute phase, findings included moderate thrombocytopenia, macrothrombocytes, anisocytosis, and polychromasia, anemia, coarse hypoechoic splenomegaly, hypoproteinemia and hypoalbuminemia, increased urinary gamma-glutamyl transferase levels, lethargy, and anorexia. Thrombocytopenia and splenomegaly were the most frequent alterations, present in all cases. In blood smears, the protozoan was in its free form in 61.1 % of cases. The pathological findings were characteristic of extravascular hemolytic disease, with the most severe tissue parasitism was observed in the intestine, heart, pancreas, and bladder. This study to describe the clinical features of rangeliosis, emphasizing a clinical classification of the disease into to acute and subacute phases.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101333"},"PeriodicalIF":1.4,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular studies on Leishmania infantum from cats in Brazil with novel insights about its transmission route 巴西猫幼利什曼原虫的分子研究及其传播途径的新见解

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-17 DOI: 10.1016/j.vprsr.2025.101330

Nathalia Frigo de Almeida Paula , Diogo Tiago Silva , João Augusto Franco Leonel , Maria Fernanda Alves-Martin , Julia Cristina Benassi , Andreina de Carvalho Araujo , Trícia Maria Ferreira de Sousa Oliveira

{"title":"Molecular studies on Leishmania infantum from cats in Brazil with novel insights about its transmission route","authors":"Nathalia Frigo de Almeida Paula , Diogo Tiago Silva , João Augusto Franco Leonel , Maria Fernanda Alves-Martin , Julia Cristina Benassi , Andreina de Carvalho Araujo , Trícia Maria Ferreira de Sousa Oliveira","doi":"10.1016/j.vprsr.2025.101330","DOIUrl":"10.1016/j.vprsr.2025.101330","url":null,"abstract":"<div><div><em>Leishmania</em> spp. are protozoan parasites responsible for zoonotic diseases known as leishmanioses. These parasites are primarily transmitted by infected sandflies; however, alternative transmission routes, such as vertical and venereal transmission, have been documented in humans and dogs. This study investigated the presence of <em>Leishmania</em> DNA in the reproductive organs of domestic cats in an area endemic for visceral leishmaniosis (VL). Conjunctival swabs from 302 cats, and reproductive tissues from 41 of these animals (34 males and 7 females) were analyzed by PCR targeting the kDNA and ITS1 regions of <em>Leishmania</em>. Positive samples underwent Sanger sequencing for species confirmation and phylogenetic analysis. In considering various samples tested, <em>Leishmania</em> DNA was detected in a total of three cats (1.0 %; 3/302), the three cats were positive for the PCR of reproductive tissue, while only two of them for the PCR of conjunctival swabs. Sequencing revealed high similarity (99.3–100 %) with <em>L.</em> <em>infantum</em> sequences obtained from humans hosts, and phylogenetic analysis confirmed that the sequenced samples clustered within the <em>L.</em> <em>infantum</em> clade. Although the frequency of positive cats was low, these results suggest the presence of <em>L</em>. <em>infantum</em> in the reproductive organs of cats, highlighting the need for further investigation into non-vector transmission routes in this species.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101330"},"PeriodicalIF":1.4,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lack of efficacy of macrocyclic lactones, albendazole, and levamisole against a field population of Dictyocaulus viviparus in cattle 大环内酯、阿苯达唑和左旋咪唑对牛活体双头绦虫缺乏防治效果

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-14 DOI: 10.1016/j.vprsr.2025.101329

Mateus Lotério Coelho , Dyego Gonçalves Lino Borges , Ivanise Paula Sobota , Ricardo Antônio Amaral de Lemos , Danilo Carloto Gomes , Fernando de Almeida Borges

{"title":"Lack of efficacy of macrocyclic lactones, albendazole, and levamisole against a field population of Dictyocaulus viviparus in cattle","authors":"Mateus Lotério Coelho , Dyego Gonçalves Lino Borges , Ivanise Paula Sobota , Ricardo Antônio Amaral de Lemos , Danilo Carloto Gomes , Fernando de Almeida Borges","doi":"10.1016/j.vprsr.2025.101329","DOIUrl":"10.1016/j.vprsr.2025.101329","url":null,"abstract":"<div><div>Dictyocaulus viviparus (Strongylida: Dictyocaulidae) is the etiological agent of pulmonary parasitosis in cattle, causing severe respiratory symptoms and, in extreme cases, death. Outbreaks of D. viviparus were recorded on a property in Brazil in the years 2022 and 2023 in an integrated agriculture and livestock system. Treatment failure was observed for levamisole, macrocyclic lactones and benzimidazoles, and only the combination of levamisole (18.8 %) and moxidectin (1 %) was effective according to fecal larvae counting reduction test (FLCRT). The following efficacy rates were observed: albendazole sulfoxide (15 %), 60.10 %; moxidectin (1 %), 60.30 %; ivermectin (0.8 %) + albendazole sulfoxide (10 %), 43.30 %; ivermectin (3.15 %), 9.85; levamisole (18.8 %), 27.40 %; doramectin (3.5 %), 57.30 % in 2022; moxidectin (1 %), 89.20 %; doramectin (1 %), 31.70 %; ivermectin (0.8 %) + albendazole sulfoxide (10 %), 19.10 %; doramectin (1.1 %), 2.22 %; levamisole (18.8 %), 96.30 %; doramectin (3.5 %), 88.40 %; and levamisole (18.8 %) + moxidectin (1 %), 99.70 % in 2023. The present results underscore the importance of monitoring pulmonary parasitosis and the scenario of lack of efficacy found in the studied population of D. viviparus.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101329"},"PeriodicalIF":1.4,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship between fecal egg count, parasite load, and histopathological findings in the pancreas of cattle naturally infected with Eurytrema coelomaticum 粪卵数、寄生虫载量和牛胰腺组织病理学结果之间的关系

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-12 DOI: 10.1016/j.vprsr.2025.101325

Andrea Julia Pantiu , Tomás Häberle , Agustín Avellaneda-Cáceres , Leandro Hipólito Olmos , Álvaro Francisco Ruiz , Marcelo Signorini , Juan Francisco Micheloud

{"title":"Relationship between fecal egg count, parasite load, and histopathological findings in the pancreas of cattle naturally infected with Eurytrema coelomaticum","authors":"Andrea Julia Pantiu , Tomás Häberle , Agustín Avellaneda-Cáceres , Leandro Hipólito Olmos , Álvaro Francisco Ruiz , Marcelo Signorini , Juan Francisco Micheloud","doi":"10.1016/j.vprsr.2025.101325","DOIUrl":"10.1016/j.vprsr.2025.101325","url":null,"abstract":"<div><div>Eurytrematosis, a disease caused by <em>Eurytrema</em> spp., primarily affects the pancreas of mammals, including cattle. Although common in Africa, Asia and South America, <em>Eurytrema coelomaticum</em> has recently been detected in Argentina. The present study aimed to evaluate the relationship between parasite load, fecal egg counts (EPG) using two diagnostic techniques (BST and OST), and histopathological lesions in cattle naturally infected with <em>Eurytrema</em>. A total of 120 cattle from an endemic area were selected for the study, with both pancreatic and fecal samples collected for parasitological and histopathological analysis. Histopathological lesions were classified into three grades based on the severity of pancreatic damage. The results demonstrated a significant difference between the parasitic load and the severity of pancreatic lesions (<em>P</em>= 0.001). Both diagnostic techniques demonstrated a significant difference between parasite presence and lesion severity; however, the OST showed higher sensitivity (88 %) and fewer false negatives (12 %) compared to the BST, which exhibited 65 % sensitivity and 35 % false negatives. Histopathological findings revealed more severe lesions, such as fibrosis and interstitial inflammation, in animals with higher parasite loads. These results emphasize the importance of combining reliable diagnostic techniques like OST with histopathological analysis to improve the understanding and management of eurytrematosis in cattle. The findings provide valuable insights into the disease's impact and suggest strategies for controlling its effects on livestock health and productivity.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101325"},"PeriodicalIF":1.4,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gastrointestinal parasite occurrence in Slovak horses and factors affecting Strongylidae and Parascaris spp. egg shedding 斯洛伐克马胃肠道寄生虫的发生及影响圆线虫科和副线虫科虫卵脱落的因素

IF 1.4

Veterinary parasitology, regional studies and reports Pub Date : 2025-08-12 DOI: 10.1016/j.vprsr.2025.101328

Tetiana A. Kuzmina , Alžbeta Königová , Ludmila Burcáková , Yaroslav Syrota , Michal Babják , Marián Várady

{"title":"Gastrointestinal parasite occurrence in Slovak horses and factors affecting Strongylidae and Parascaris spp. egg shedding","authors":"Tetiana A. Kuzmina , Alžbeta Königová , Ludmila Burcáková , Yaroslav Syrota , Michal Babják , Marián Várady","doi":"10.1016/j.vprsr.2025.101328","DOIUrl":"10.1016/j.vprsr.2025.101328","url":null,"abstract":"<div><div>Strongylids and parascarids are the most widespread equine parasites worldwide; however, up-to-date data from Slovakia remain limited. This work bridges that gap by examining the prevalence and level of gastrointestinal helminth infections in Slovak horses. In the study, 392 fecal samples from horses on 24 farms were analyzed using the McMaster method with a sensitivity of 50 eggs per gram (EPG) for detecting nematode eggs and a double-centrifugation/combined sedimentation-flotation protocol for detecting <em>Anoplocephala</em> spp. eggs. Information on the age and breed of horses, management conditions, and parasite control methods was collected to assess the impact of these factors on the level of parasite infection. Overall, 257 fecal samples were found to be positive for strongylids (prevalence = 65.6 %), with EPG counts ranging from 50 to 2800 EPG. The proportion of horses responsible for 80 % of the strongylid egg output was 29.8 %. <em>Parascaris</em> spp. and <em>Anoplocephala</em> spp. eggs were detected in 4.5 % and 0.3 % of horses, respectively; no eggs of other helminths were found. Multivariate statistical analysis revealed that age and stocking density were the meaningful predictors of strongylid infection in horses in eastern Slovakia. In contrast, <em>Parascaris</em> spp. infection was meaningfully influenced solely by horse age.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"64 ","pages":"Article 101328"},"PeriodicalIF":1.4,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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