Tropical Animal Health and Production

, Volume 44, Issue 4, pp 757–762 | Cite as

Gasterophilosis: a major cause of rectal prolapse in working donkeys in Ethiopia

  • Adako Mulugeta GetachewEmail author
  • Giles Innocent
  • Andrew Francis Trawford
  • Stuart William James Reid
  • Sandy Love
Original Research


A retrospective study was conducted to investigate the cause of rectal prolapse in working donkeys in Ethiopia. Analysis of data on rectal prolapse cases obtained from the Donkey Health and Welfare Project clinic at the School of Veterinary Medicine, Addis Ababa University, from 1995 to 2004 revealed that 83.6% (n = 177) of the cases were associated with Gasterophilus nasalis. The rest 10.7% and 5.7% were associated with work-related (overloading) cause and diarrhoea, respectively. The mean and median numbers of G. nasalis recovered from the rectum of infected donkeys were 66 and 64, respectively, with a range of 2–195. Over 100 G. nasalis larvae were recovered from the rectum of 22% of the donkeys. Circular demarcated ulcer-like and deep circumferential pits or ring-like mucosal lesions were found at the larval attachment sites. G. nasalis infection and the associated rectal prolapse were observed year round. However, the intensity of rectal larval infection and incidence of rectal prolapse were significantly higher during the rainy season (P < 0.01). Age and sex of the donkeys had no significant effect on the intensity of rectal larval infection and incidence of rectal prolapse (P > 0.05).


Gasterophilosis Rectal prolapse Donkey Ethiopia 



This study was financially supported by the Donkey Sanctuary. The authors are grateful to the Faculties of Veterinary Medicine of Addis Ababa University and Glasgow University for their support and provision of the necessary facilities. The technical assistance of the Donkey Health and Welfare Project staff in Ethiopia is highly acknowledged with thanks.


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Adako Mulugeta Getachew
    • 1
    • 2
    • 3
    Email author
  • Giles Innocent
    • 3
    • 6
  • Andrew Francis Trawford
    • 2
  • Stuart William James Reid
    • 3
    • 5
  • Sandy Love
    • 4
  1. 1.Donkey Health and Welfare Project, Faculty of Veterinary MedicineAddis Ababa UniversityDebre ZeitEthiopia
  2. 2.Donkey SanctuaryDevonUK
  3. 3.Division of Animal Production and Public Health Comparative Epidemiology and Informatics, Institute of Comparative MedicineUniversity of Glasgow Veterinary SchoolGlasgowUK
  4. 4.Division of Companion Animal Sciences, Institute of Comparative MedicineUniversity of Glasgow Veterinary SchoolGlasgowUK
  5. 5.Principal for Royal Veterinary CollegeUniversity of LondonHertsUK
  6. 6.Biomathematics & Statistics Scotland (BIOSS) James Clerk Maxwell BuildingEdinburghUK

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