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Home / Equine Research Bank / Syst Parasitol / Morphology and diagnosis of some fourth-stage larvae of cyat...
Systematic parasitology2008; 72(1); 1-13; doi: 10.1007/s11230-008-9152-8

Morphology and diagnosis of some fourth-stage larvae of cyathostomines (Nematoda: Strongyloidea) in donkeys Equus asinus L. from Ethiopia.

Abstract: Fourth-stage larvae of four species of the Cyathostominae Nicoll, 1927 parasitic in donkeys Equus asinus L. from Ethiopia were identified mainly using moulting specimens. They are Cylicocyclus asini Matthee, Krecek & Gibbons, 2001, C. auriculatus (Looss, 1900) Chaves, 1930, Cyathostomum tetracanthum (Mehlis, 1831) Molin, 1861 (sensu Looss, 1900) and Cylindropharynx brevicauda Leiper, 1911. The larva of Cylicocyclus asini is similar to those of C. nassatus (Looss, 1900) Chaves, 1930 and C. leptostomum Kotlán, 1920, but differs from the former by the shape of the dorsal tooth in the oesophageal funnel, which is notably smaller than in C. asini but similar to that of C. leptostomum. However, the larva of C. asini differs from that of C. leptostomum in the size of the buccal capsule, which is notably larger than in C. leptostomum but similar to that of C. nassatus. The larva of C. auriculatus is very similar to that of C. insigne (Boulenger, 1917) Chaves, 1930. The larva of Cyathostomum tetracanthum is similar to those of Cylicostephanus bidentatus (Ihle, 1925) Lichtenfels, 1975, C. goldi (Boulenger, 1917) Lichtenfels, 1975 and Cyathostomum catinatum Looss, 1900. The larva of Cylindropharynx brevicauda is similar to that of Petrovinema skrjabini (Ershov, 1930) Ershov, 1943 but smaller in size. Including the four cyathostomine species identified in the present study, 36 species belonging to 13 genera have so far been described and identified of a total of 64 recognised and confirmed species of equine strongyles.
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Publication Date: 2008-12-02 PubMed ID: 19048404DOI: 10.1007/s11230-008-9152-8Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research examined and identified the larvae of four species of Cyathostominae, a parasite commonly found in donkeys in Ethiopia. The study focused on understanding the similarities and differences among these subspecies, providing a clearer path for diagnosis and potential treatment methods.

Methodology and Species Identification

  • The study focused on the fourth-stage larvae of four species from the Cyathostominae family that are prevalent in donkeys in Ethiopia.
  • The species examined were Cylicocyclus asini, C. auriculatus, Cyathostomum tetracanthum, and Cylindropharynx brevicauda.
  • Researchers utilized moulting specimens to aid in the identification of these larvae.

Comparison of Larvae

  • The larva of Cylicocyclus asini was found to be similar to C. nassatus and C. leptostomum. Differences were noted in the shape of the dorsal tooth in the oesophageal funnel, which was smaller in C. asini compared to C. nassatus, but similar to C. leptostomum.
  • However, the C. asini larvae differed from C. leptostomum larvae in the size of the buccal capsule, which was larger in C. asini.
  • The larva of C. auriculatus was found to be very similar to that of C. insigne.
  • The larva of Cyathostomum tetracanthum was similar to those of Cylicostephanus bidentatus, C. goldi, and Cyathostomum catinatum.
  • Lastly, the larva of Cylindropharynx brevicauda was found to be similar to that of Petrovinema skrjabini, albeit smaller in size.

Significance of the Study

  • This research significantly contributes to the understanding of equine parasites, specifically cyathostomine species, improving diagnostic processes.
  • These findings further expand the existing knowledge on the diversity of equine strongyles. With the identification of these four species, a total of 36 species belonging to 13 genera have been described. This is out of a total of 64 recognized and confirmed species of equine strongyles.
  • The thorough examination of the fourth-stage larvae of these species provides a microscopic look into the life cycle of these intestinal parasites, enabling better comprehension of their life cycle and potentially informing development of treatment methods.

Cite This Article

APA
Kharchenko V, Kuzmina T, Trawford A, Getachew M, Feseha G. (2008). Morphology and diagnosis of some fourth-stage larvae of cyathostomines (Nematoda: Strongyloidea) in donkeys Equus asinus L. from Ethiopia. Syst Parasitol, 72(1), 1-13. https://doi.org/10.1007/s11230-008-9152-8

Publication

Systematic parasitology
ISSN: 0165-5752
NlmUniqueID: 8111384
Country: Netherlands
Language: English
Volume: 72
Issue: 1
Pages: 1-13

Researcher Affiliations

Kharchenko, Vitaliy
  • Schmalhausen Institute of Zoology NAS of Ukraine, vul. B. Khmelnitskogo, 15, Kyiv, 01601, Ukraine. vit@izan.kiev.ua
Kuzmina, Tetyana
    Trawford, Andrew
      Getachew, Mulugeta
        Feseha, Gebreab

          MeSH Terms

          • Animals
          • Equidae
          • Ethiopia / epidemiology
          • Female
          • Larva / anatomy & histology
          • Larva / classification
          • Male
          • Nematoda / anatomy & histology
          • Nematoda / classification
          • Nematode Infections / epidemiology
          • Nematode Infections / parasitology
          • Nematode Infections / veterinary

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          Citations

          This article has been cited 4 times.
          1. Alemayehu MT, Abebe BK, Haile SM. Investigation of Strongyle Prevalence and Associated Risk Factors in Horses in and around Alage District, Ethiopia.. J Parasitol Res 2022;2022:3935008.
            doi: 10.1155/2022/3935008pubmed: 35989863google scholar: lookup
          2. Peachey LE, Pinchbeck GL, Matthews JB, Burden FA, Lespine A, von Samson-Himmelstjerna G, Krücken J, Hodgkinson JE. P-glycoproteins play a role in ivermectin resistance in cyathostomins.. Int J Parasitol Drugs Drug Resist 2017 Dec;7(3):388-398.
            doi: 10.1016/j.ijpddr.2017.10.006pubmed: 29121562google scholar: lookup
          3. Bredtmann CM, Krücken J, Murugaiyan J, Kuzmina T, von Samson-Himmelstjerna G. Nematode Species Identification-Current Status, Challenges and Future Perspectives for Cyathostomins.. Front Cell Infect Microbiol 2017;7:283.
            doi: 10.3389/fcimb.2017.00283pubmed: 28702376google scholar: lookup
          4. Kharchenko VA, Kuzmina TA. Morphology and diagnosis of the fourth-stage larva of Coronocyclus labratus (Looss, 1900) (Nematoda: Strongyloidea) parasitising equids.. Syst Parasitol 2010 Sep;77(1):29-34.
            doi: 10.1007/s11230-010-9255-xpubmed: 20700695google scholar: lookup
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