Dystocia following prolonged retention of a dead fetus in an Asian elephant (Elephas maximus).A 32-year-old nulliparous female Asian elephant (Elephas maximus) showed signs of parturition 8 months later than predicted from the breeding records. However, while serosanguineous fluid, necrotic tissue and pieces of amnion...2006-09-15 Chiang Mai, Thailand Category: abstract