Donkey dystocia cases have been reported, but their true incidence and nature is not known. Malformations such as schistosomus reflexus and foetal ankylosis have been reported as causes of dystocia (Dubbin et al, 1990). In miniature donkeys, dystocia may result following abortion due to foetal malformation. In equines, the uterus should be able to regulate foetal growth and reduce the rate of dystocia due to foetal-maternal disproportion. However, an increased rate of dystocia is commonly feared when jennies are bred to stallions.
Dystocia risks are increased in miniature donkeys because of the domed large forehead of some foals. Relief of dystocia is best accomplished under anaesthesia, with the jenny’s hindquarters suspended. Caesarean section is preferable to foetotomy. Long obstetrical manipulations have been associated with vaginal adhesions.
References
- Tibary, A., Sghiri, A. & Bakkoury, M. (2008) Reproduction In Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) The Professional Handbook of the Donkey, 4th edition, Whittet Books, Chapter 17
- Dubbin, E.S., Welker, F., Veit, H., Modransky, P.D., Talley, M.R., Vandeplassche, M., and Salah-Osman-Idris, M.B. (1990). ‘Dystocia attributable to a fetal monster resembling schistosomus reflexus in a donkey’. Journal of the American Veterinary Association 197. pp 605-607.
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