Gyalocephalus spp in Horses (Equis) | Vetlexicon
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Gyalocephalus spp

ISSN 2398-2977

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Introduction

Classification

Taxonomy

  • Superfamily:Strongyloidea.
  • Subfamily:Cyathostominae.
  • Genus:Gyalocephalus.
  • Species:capitatus.

Distribution

  • Occasionally reported as part of the mixed small strongyle population of the large intestine of the horse.
  • Entirely absent in other studies.

Significance

  • Along with other members of theCyathostominae, these nematodes may be of pathogenic significance as adults and also as encysted larvae, where they can interfere with gut motility and cause colic    Abdomen: pain - adult  .
  • They can also cause acute larval cyathostomosis   Strongyle infestation: large  .

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Resting Forms

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Clinical Effects

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Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Proudman C J (1999) The role in parasites in equine colic. Equine Vet Educ 11 (4), 219-224. 
  • Lichtenfels J R, Kharchenko V A, Krecek R C, Gibbons L M (1998) An annotated checklist by genus and species of 93 species level names for 51 recognized species of small strongyle (Nematoda - Strongyloidea, Cyathostominea) of horses, asses and zebras of the world. Vet Parasitol 79, 65-79 (up to date, if somewhat undigestible, taxonomic information) PubMed
  • Lyons E T, Tolliver S C, Drudge J H et al (1996) A study (1977-1992) of population dynamics featuring benzimidazole-resistant small strongyle (Population S) in Shetland ponies. Vet Parasitol 66, 75-86 (interesting data on how drug treatment can modulate parasite populations) PubMed
  • Bucknell D G, Gasser R B & Beveridge I (1995) The prevalence and epidemiology of gastrointestinal parasites of horses in Victoria, Australia. Int J Parasitol 25, 711-724 (good analysis of the prevalence of various small strongyle species) PubMed
  • Lihua X, Herd R P & Majewski G A (1994) Comparative efficacy of moxidectin and ivermectin against hypobiotic and encysted cyathostomes and other equine parasites. Vet Parasitol 53, 83-90 PubMed
  • Lichtenfels J R (1975) Helminths of domestic equids. Illustrated keys to genera and species with emphasis on North American forms. Proc Helminthol Soc Washington 42, Special Issue (used by specialists involved in speciation and specific identification) VetMedResource.

Other sources of information

  • Soulsby E J L (1982 ) Helminths, Arthropods and Protozoa of Domesticated Animals. Balliere & Tindall, London. pp 178-180. ISBN: 0 7020 0820 6 (a general comprehensive reference book).