Illustrated identification keys to strongylid parasites (strongylidae: Nematoda) of horses, zebras and asses (Equidae)

Lichtenfels, J. R.; Kharchenko, V. A.; Dvojnos, G. M.

doi:10.1016/j.vetpar.2008.04.026

Cited by 188 publications

(189 citation statements)

References 53 publications

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“…Th ese nematodes are the dominant group of parasites of wild and domestic equids worldwide (Dvojnos and Kharchenko, 1994;Lichtenfels et al, 2008;Kuzmina et al, 2009, Kuzmina et al, 2013. However, only 18 species of strongylids were found in our study.…”

Section: Discussionmentioning

confidence: 99%

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Gastrointestinal Parasite Community in a New Population of the Przewalski’s Horse (Equus Ferus Przewalskii) in the Orenburg State Reserve, Russia

Kuzmina¹,

Zvegintsova²,

Zharkikh³

2017

Vestnik Zoologii

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Gastrointestinal Parasite Community in a New Population of the Przewalski's Horse (EquusTh e fi rst group of 6 Przewalski's horses (2 males and 4 females) born in the semi-reserve Le Villaret, France, was transported to the Orenburg Reserve. Th e aim of this work was to investigate the species composition of the intestinal parasite community and to monitor the dynamics of the parasite infection of the newly established Przewalski's horse population. Th e level of infection by gastrointestinal parasites within the horses was examined by the McMaster method. Gastrointestinal parasites were collected in vivo aft er deworming of the horses with macrocyclic lactone drug "Univerm" (0.2 % aversectin C, PharmBioMed, Russia). Totally, 20 species of parasites were found: 19 species of nematodes (species of the family Strongylidae and Habronema muscae) and one species of botfl ies from the genus Gasterophilus. Th e widest species diversity (18 species from 8 genera) was observed in strongylids: 2 species from the subfamily Strongylinae and 16 species from Cyathostominae. Distribution of strongylid species between ten prevalence classes revealed a bimodal structure ("core-satellite" mode) of the strongylid community. Th e results obtained in this study are to be considered as the initial data for the further parasitological monitoring of Przewalski's horses at the Orenburg State Reserve.

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Section: Discussionmentioning

confidence: 99%

“…Fecal samples were fi rst washed in isotonic saline solution. Th ereaft er, all the expelled parasites were collected manually, fi xed in 70 % ethanol, and identifi ed under light microscope using morphological criteria (Dvojnos and Kharchenko, 1994;Lichtenfels et al, 2008).…”

Section: P a R A S I T O L O G I C A L M E T H O D S A N D S T A T I mentioning

confidence: 99%

Gastrointestinal Parasite Community in a New Population of the Przewalski’s Horse (Equus Ferus Przewalskii) in the Orenburg State Reserve, Russia

Kuzmina¹,

Zvegintsova²,

Zharkikh³

2017

Vestnik Zoologii

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“…The Cyathostominae family includes 50 species referred to as small strongylids (Lichtenfels et al 2008). Cyathostominae have a simple development cycle during which eggs excreted by infected horses hatch into rhabditiform larvae which become invasive several days later (filariform larvae with preserved sheath).…”

Section: Introductionmentioning

confidence: 99%

A comparison of the efficacy and pharmacokinetics of ivermectin after spring and autumn treatments against Cyathostominae in horses

Sokół¹,

Raś-Noryńska²,

Michalczyk³

et al. 2015

Polish Journal of Veterinary Sciences

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The aim of the present study was to determine the efficacy of ivermectin against Cyathostominae infections and to describe the drug's pharmacokinetic parameters during two seasonal deworming treatments in horses. The study was performed on warm-blooded mares aged 3-12 years weighing 450-550 kg. A single bolus of an oral paste formulation of ivermectin was administered at a dose of 0.2 mg/kg BW in spring and autumn. Fecal samples were tested before treatment and 1, 2, 3, 4, 6, 10, 20, 30, 40, 50, 60, 75 days after treatment. Ivermectin concentrations in blood samples collected before treatment, 0.5, 1, 2, 3, 4, 6, 12, 24, 36 and 48 hours after treatment, and 3, 4, 6, 8, 10, 15, 20, 25, 30, 40, 50, 60 and 75 days after drug administration were determined by high pressure liquid chromatography. Drug absorption was significantly (p<0.05) slower (t max : 21.89±11.43 h) in autumn than in spring (t max : 9.78±8.97 h). Maximum concentrations (C max ) of ivermectin in the blood plasma of individual horses (8.40-43.08 ng/ml) were observed 2-24 h after drug administration during the spring treatment and 2-36 h (6.43-24.86 ng/ml) after administration during the autumn treatment. Significantly higher (p<0.05) ivermectin concentrations were found during the first 4 hours after administration in spring in comparison with those determined after the autumn treatment.The administration of the recommended dose of ivermectin resulted in 100% elimination of parasitic eggs from feces in spring and autumn treatment.

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“…Cyathostome specimens obtained from the entire contents of the large intestines were identifi ed using an Olympus BX51 microscope. Nematodes from each part of the large intestine were illuminated, measured, and identifi ed with the help of diagnostic keys, which were created based on previously published material of Anderson et al (1980), Anjos and Rodrigues (2006); Baruš (1962); Lichtenfels et al (1998;2008 …”

Section: Methodsmentioning

confidence: 99%

Cyathostominae distribution in experimentally infected ponies

et al. 2015

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SummaryNine ponies were experimentally infected with third stage cyathostome larvae. These animals were examined post-mortem for small strongyle infections from October 2011 to January 2012. Seventeen species of the following Cyathostominae genera were identifi ed: Coronocyclus, Cyathostomum, Cylicocyclus, Cylicostephanus, Gyalocephalus and Petrovinema. Of the 17 species of Cyathostominae recovered, Cyathostomum catinatum, Cyathostomum alveatum and Cylicocyclus nassatus were the most prevalent (100 %). From the entire population of Cyathostominae, 65.6 % were located in the caecum and only 34.4 % in the colon. Only 1,736 (24,6 %) females and 5,329 (75,4 %) males were observed. There was a signifi cant difference between the number of males and females in the genus Cyathostomum, Cylicocyclus and Gyalocephalus.

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Illustrated identification keys to strongylid parasites (strongylidae: Nematoda) of horses, zebras and asses (Equidae)

Cited by 188 publications

References 53 publications

Gastrointestinal Parasite Community in a New Population of the Przewalski’s Horse (Equus Ferus Przewalskii) in the Orenburg State Reserve, Russia

Gastrointestinal Parasite Community in a New Population of the Przewalski’s Horse (Equus Ferus Przewalskii) in the Orenburg State Reserve, Russia

A comparison of the efficacy and pharmacokinetics of ivermectin after spring and autumn treatments against Cyathostominae in horses

Cyathostominae distribution in experimentally infected ponies

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