Encyclopedia of Parasitology

2016 Edition
| Editors: Heinz Mehlhorn

Strongylus Species of Equids

  • Heinz MehlhornEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-43978-4_3989


Greek: strongylus = rounded; Latin: edentatus = without teeth; vulgaris = common, normal; equinus = belonging to horses; asinus = donkey

Geographic Distribution/Epidemiology

Worldwide; however, S. asini was only recorded in Africa, Asia, and South America.

Morphology/Life Cycle

This group encloses four main species:
  1. (a)

    Strongylus asini: Females, 3–4.2 cm; males, 1.8–3.3 cm; they possess two ear-like teeth at the base of the mouth capsule. Eggs, 75 × 45 μm.

  2. (b)

    Strongylus edentatus: Females, 2.8–4.4 cm; males, 1.9–2.8 cm. No teeth at the base of the mouth capsule (Fig. 1). Eggs, 64 − 99 × 40 − 57 μm.

  3. (c)

    Strongylus equinus: Females, 3.5–5 cm; males, 2.4–3.5 cm. Two subventral teeth and one dorsal tooth (with a divided tip) at the base of the mouth capsule (Fig. 1). Eggs, 70 − 90 × 40 − 55 μm.

  4. (d)

    Strongylus vulgaris: Females, 1.3–2.5 cm; males, 1–1.9 cm; two ear-like teeth at the base of the mouth capsule (Figs. 1 and 2). Eggs, 74 − 95 × 36 − 58 μm.

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Further Readings

  1. Anderson UV et al (2013) SUSXP: a Strongylus vulgaris antigen with potential for prepatent diagnosis. Parasites Vectors 6:84–97CrossRefGoogle Scholar
  2. Cao X et al (2013) Association between large strongyle genera in larval cultures – using rare event poisson regression. Parasitology 140:1246–1251PubMedCrossRefGoogle Scholar
  3. Kuzmina TA et al (2012) Fecundity of various species of strongylids – parasites of domestic horses. Parasitol Res 111:2265–2271PubMedCrossRefGoogle Scholar
  4. Nielsen MK et al (2014) Development of Strongylus vulgaris – specific serum antibodies in naturally infected foals. Vet Parasitol 200:265–270PubMedCrossRefGoogle Scholar
  5. Studzinska MB et al (2012) The strongylidae belonging to Strongylus genus in horses from Southern Poland. Parasitol Res 111:1417–1421PubMedPubMedCentralCrossRefGoogle Scholar
  6. Toscan G et al (2012) Comparative performance of macrocyclic lactones against large strongyles in horses. Parasitol Int 61:550–553PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Institut für ZoomorphologieZellbiologie und Parasitologie, Heinrich-Heine-UniversitätDüsseldorfGermany