Nematodes from the genus Ascaridia parasitizing psittaciform birds: a review and determination key

Kajerová, V.; Baruš, V.; Literák, Ivan

doi:10.17221/5698-vetmed

Cited by 19 publications

(28 citation statements)

References 14 publications

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“…The morphological characters of the ascarid worms and eggs, depicting them to be A. columbae were in corroboration with the studies of Wehr and Hwang (1964) and Kajerova et al (2004). Whereas, the morphological criteria about the adult worms and the eggs of capillarid parasite in the present study were in agreement with the studies of Wakelin (1965), Soulsby (1982) and Park and Shin (2010), suggesting it to be C. obsignata.…”

Section: Resultssupporting

confidence: 90%

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Morpho-pathological description of first record of fatal concurrent intestinal and renal parasitism in Columba livia domestica in India

Singla

Gupta

2017

IJAR

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Out of around 200 pigeons (housed at Mahendra Chaudhury Zoological Park, Chhatbir, Punjab), two pigeons exhibiting signs of depression, lethargy, droopiness and blood tinged greenish diarrhoea were quarantined for detailed examination. The faecal examination revealed a concurrent parasitic egg load of capillarid, ascarid and strongyle eggs. Morphological observations after clearing of retrieved parasites from the deceased pigeons revealed the presence of Ascaridia columbae, Capillaria obsignata, and Ornithostrongylus quadriradiatus. Histopathological studies of the intestines revealed sloughing and hyperplasia of the lining epithelium; whereas kidneys of one of the pigeon exhibited the extensive tubular damage and marked haemorrhages with cut sections of the parasite, Paratanaisia bragai. The other vital organs showed no signs of any significant lesions in both pigeons. This seems to be the first report of fatal concurrent gastrointestinal and renal pathology due to A. columbae, C. obsignata, O. quadriradiatus and P. bragai in pigeons kept at zoological park in India.

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Section: Resultssupporting

confidence: 90%

“…Ascaridia columbae is one of the most pathogenic parasites of pigeons (Kajerova et al, 2004). The target organ of the parasite is mainly small intestines, where it localizes for almost one year.…”

Section: Introductionmentioning

confidence: 99%

Morpho-pathological description of first record of fatal concurrent intestinal and renal parasitism in Columba livia domestica in India

Singla

Gupta

2017

IJAR

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“…Ideally, a diagnosis of helminthiasis should be restricted to cases in which three criteria are met: (1) helminths are present in quantities compatible with the disease; (2) typical lesions caused by the parasite are present and (3) clinical signs are compatible with the pathological genetic mechanisms known to be associated with the parasite (3). The diagnosis of ascaridiasis in this study was based on the clinical signs and the pathological aspects, in addition to the identification of the adult parasites (9). The relationship between the degree of parasitic infestation, body condition, and occurrence of concomitant diseases are detailed in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…Blue-fronted parrots are frequently reported as hosts of A. hermaphrodita (5,9). In 36.4% of the necropsied Blue fronted parrots that presented ascaridiasis, low weight or cachexia was observed, in addition to the occurrence of secondary diseases due to the debility presented by the birds.…”

Section: Resultsmentioning

confidence: 99%

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Clinical, pathological and parasitological aspects of ascaridiasis in Blue-fronted parrots (Amazona aestiva) from illegal wildlife trade in Northeastern Brazil

Siqueira¹,

Neto²,

Guerra³

et al. 2017

Braz. J. Vet. Pathol.

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Siqueira, et al.; Clinical, pathological and parasitological aspects of ascaridiasis in Blue-fronted parrots (Amazona aestiva) from illegal wildlife trade in Northeastern Brazil. Braz J Vet Pathol, 2017, 10(2), 43 -46. DOI: 10.24070/bjvp.1983 Brazilian AbstractWild birds from illegal wildlife trade are susceptible to several injuries due to the unfavorable sanitary conditions in which they are maintained. Among these animals, parrots of the Amazona genus are frequent victims, and are hosts to parasites of the Ascaridia genus. This study aimed to describe clinical, pathological and parasitological aspects of ascaridiasis in Blue-fronted parrots apprehended from illegal wildlife trade in Paraíba State, Brazil. Sixteen Amazona aestiva dead at triage after progressive weight loss were submitted to necropsy. Moderate to intense ascaridiasis was observed in 36.4% of the parrots, and associated with poor and cachectic body conditions. Simultaneous diseases were also observed. The parasites were bleached and observed in stereomicroscopy. Based on morphologic aspects, the parasites were identified as Ascaridia hermaphrodita.

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Ascaridia nymphii n. sp. (Nematoda: Ascaridida) from the alimentary tract of a severely emaciated dead cockatiel Nymphicus hollandicus

Abe

Matsuo²,

Makino

2015

Parasitol Res

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This report describes Ascaridia nymphii n. sp., a new species isolated from the alimentary tract of cockatiel Nymphicus hollandicus in Japan. More than 63 nematodes were found in the formalin-fixed small intestine, ventriculus, proventriculus and crop of a 48-day-old young cockatiel that died after exhibiting severe emaciation. No nematode eggs were observed in the faecal examination performed while the cockatiel was alive, but Cryptosporidium oocysts were found. The intestinal mucosa was damaged considerably. Male worms had two alate spicules, well-developed precloacal sucker and a tail with ventrolateral caudal alae and mainly 11 pairs of papillae. Nuclear partial (813 bp) 18S ribosomal RNA gene (18S rDNA) sequences obtained from two female samples were mutually identical. They respectively showed 99.1 and 98.6% identities to those from Ascaridia numidae and Ascaridia galli. Phylogenetic analysis using this locus indicated the present nematode as Ascaridia species. The mitochondrial NADH dehydrogenase subunit 2 gene (nad2) sequences obtained for four samples were mutually identical. They respectively showed 98.7, 85.7 and 82.2% identities with those from Ascaridia columbae, Ascaridia sp. and A. galli. Combining the morphological and sequencing data from two loci, the present nematode was identified as A. nymphii n. sp., which is closely related with A. columbae. This report is the first of a study examining the distribution of Ascaridia species in captive parrots in Japan. This study also identified the trachea and cloaca, like Cryptosporidium baileyi, as the possible location of Cryptosporidium avian genotype V in avian hosts.

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Nematodes from the genus Ascaridia parasitizing psittaciform birds: a review and determination key

Cited by 19 publications

References 14 publications

Morpho-pathological description of first record of fatal concurrent intestinal and renal parasitism in Columba livia domestica in India

Morpho-pathological description of first record of fatal concurrent intestinal and renal parasitism in Columba livia domestica in India

Clinical, pathological and parasitological aspects of ascaridiasis in Blue-fronted parrots (Amazona aestiva) from illegal wildlife trade in Northeastern Brazil

Ascaridia nymphii n. sp. (Nematoda: Ascaridida) from the alimentary tract of a severely emaciated dead cockatiel Nymphicus hollandicus

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