Eulimdana clava (Nematoda: Filarioidea) infection in domestic pigeons (Columba livia domestica): Molecular characterization and pathological changes

Šupić, Jovana; Alić, Amer; Hasanić, Melida; Goletić, Šejla; Duscher, Georg Gerhard; Hodžić, Adnan

doi:10.1016/j.vetpar.2018.01.003

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…Parasite prevalence information for wild birds is useful for risk mapping of infections that could be transmitted to domestic poultry or pet birds in surrounding human settlements, although the origin of infections in such hosts can be uncertain. 24,25 Given that avian parasitism is driven by environmental as well as intrinsic factors 26 , we hypothesised that trypanosome and microfilarial parasite prevalence is affected by both. We attempted to explore how seasonal changes (wet vs dry), study areas, and land use type (inside vs outside the Park) affected prevalence.…”

Section: Introductionmentioning

confidence: 99%

Influence of season and other factors on avian Trypanosoma spp. and microfilarial prevalence in the Lowveld, South Africa

2023

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To comprehend the effects of emerging infectious diseases on both human and animal health, it is necessary to understand the ecology of pathogens that have wildlife reservoirs. In this study, we determined the prevalence of the parasites Trypanosoma spp. and filarial nematodes in the bloodstream of birds in and around the Kruger National Park, South Africa, partly to test the hypothesis that season influences parasitaemia. Other factors considered were foraging habits, gregariousness or solitariness, and whether location might facilitate contact between birds and parasite vectors. Microscopy was used to screen stained blood smears prepared from 685 captured birds of 87 species. It was found that 3.9% of the birds were infected with filarial nematodes (as reflected by the presence of microfilariae) and 3.1% with Trypanosoma spp. No cases of coinfection with both types of parasite were encountered. Ground-foraging and solitary birds had the highest parasite prevalences compared to other birds. Infections were recorded throughout the year at all six sites. The respective percentages of birds harbouring the two parasite types in the dry season were the same (both 2.3%), whereas microfilariae dominated in the wet season (6.9%) and the prevalence of Trypanosoma spp. then was 1.4%. These findings represent new knowledge concerning avian haemoparasite prevalence in an Afrotropical setting – something that has so far been poorly studied.

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Section: Introductionmentioning

confidence: 99%

Influence of season and other factors on avian Trypanosoma spp. and microfilarial prevalence in the Lowveld, South Africa

2023

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“…The common genera of these nematodes include Ascaridia galli , Heterakis gallinarum , Trichostrongylus tenuis , Strongyloides avium , Capillaria spp., Amidostomum spp., Syngamus spp., and Eulimdana spp. [ 8 - 12 ]. These infections are associated with pathological changes in various organs (gastrointestinal, musculoskeletal, integumentary, and subcutaneous) and respiratory systems [ 12 - 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…[ 8 - 12 ]. These infections are associated with pathological changes in various organs (gastrointestinal, musculoskeletal, integumentary, and subcutaneous) and respiratory systems [ 12 - 18 ]. These pathologies are related to illness, welfare, egg production, and host immune function [ 16 , 18 - 20 ].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of major nematodes and human factors that affect infection in the zebra dove in a closed cage system

et al. 2022

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Background and Aim: Roundworms cause infections in the avian population that lead to illness and poor production. The singing zebra dove is an economically important animal in the Indo-Malay region. The prevalence of these parasitic groups in zebra doves is unknown. This study estimated the prevalence and associated human risk factors of gastrointestinal nematode infections in zebra dove farming. Materials and Methods: A cross-sectional survey was conducted from January to April 2021. The study was conducted on 184 doves in three zebra dove farms. Fecal samples were collected from pooled zebra dove droppings. Major proportions and infection intensity of gastrointestinal nematodes were morphologically identified and morphometrically investigated. Associated human factors were assessed through the interview surveys among farmers. Results: Results showed that 36.96% of the zebra doves were infected. The primary nematodes were Ascaridia galli (34.78%), Heterakis gallinarum (6.52%), Trichostrongylus tenuis (2.17%), Syngamus spp. (4.35%), and Amidostomum spp. (2.17%). The primary human factors that contribute to parasitic infection were poor hygiene, food contamination with parasites, and inappropriate deworming. Conclusion: There was a high prevalence of gastrointestinal nematodes in the zebra dove in the close cage system. Human factors played key roles as risk factors, and improves farming management will help reduce parasitic infections. However, these nematodes may contribute to poor health status and poor productivity of zebra doves. Further extensive studies on clinical signs and pathological changes should be conducted.

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Molecular and morphological characterization of three new species of avian Onchocercidae (Nematoda) with emphasis on circulating microfilariae

et al. 2021

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Background Blood parasites have been the subject of much research, with numerous reports of the presence of microfilariae in the peripheral blood (circulating microfilariae) of birds belonging to many orders. Current limitations in molecular characterization methods and species identification using morphological characters of circulating microfilariae are major obstacles to improving our understanding the biology of Filarioidea species, particularly in wildlife. The aim of this study was to partially fill these gaps, with particular emphasis on morphological features of microfilariae, which are the most readily accessible stages of these pathogens. Methods Peripheral blood samples of 206 birds belonging to genera Acrocephalus (five species) and Sylvia (five species) were examined using the buffy coat method to process the blood samples for the presence of microfilariae. Positive birds were dissected to collect adult nematodes. Microfilariae and adult nematodes were described, and sequences of their mitochondrial cytochrome c oxidase subunit I and nuclear 28S rDNA gene fragments were obtained and used for molecular characterization and Bayesian phylogenetic inferences. Results Overall prevalence of microfilariae was 2.9%. Microfilariae were found in the blood samples from six birds (2 Acrocephalus scirpaceus and 1 each of A. arundinaceus, Sylvia atricapilla, S. borin and S. curruca), which were dissected. All parasite species observed were new. Eufilaria acrocephalusi sp. n. and Eufilaria sylviae sp. n. were present in subcutaneous, peritracheal and periesophageal connective tissues in A. scirpaceus and S. borin, respectively. Splendidofilaria bartletti sp. n. was found in finger joins of S. atricapilla. Illustrations of microfilariae and adult nematodes are shown, and morphological and phylogenetic analyses identified the DNA barcode haplotypes that are associated with these species. Phylogenetic analysis places the parasites of different genera in different closely related clades. Conclusions Adult nematode morphological characters, which have been traditionally used in the taxonomy of Filarioidea species, have a phylogenetic value. Importantly, in our study parasites of different genera were readily distinguishable based on the morphology of their microfilariae. The link between molecular and morphology data requires more study in Filarioidea species research, particularly because this approach provides new knowledge on species identity using only readily accessible blood stages (microfilariae), thereby avoiding host dissection and thus minimizing harm to wildlife during research.

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Eulimdana clava (Nematoda: Filarioidea) infection in domestic pigeons (Columba livia domestica): Molecular characterization and pathological changes

Cited by 3 publications

References 12 publications

Influence of season and other factors on avian Trypanosoma spp. and microfilarial prevalence in the Lowveld, South Africa

Influence of season and other factors on avian Trypanosoma spp. and microfilarial prevalence in the Lowveld, South Africa

Prevalence of major nematodes and human factors that affect infection in the zebra dove in a closed cage system

Molecular and morphological characterization of three new species of avian Onchocercidae (Nematoda) with emphasis on circulating microfilariae

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