Epidemiology of Trypanosoma evansi infection in crossbred dairy cattle in Malaysia

An investigation into the epidemiology of Trypansoma evansi infection in cr ossbred dairy cattle was conducted for a period of 12 months on a dairy cat tle farm in Penninsular Malaysia. The prevalence of parasitaemia was highes t in lactating animals (13.4%), followed by those in the dry herd (8.8%), l ate pregnant animals (8.1%), early pregnant animals (4.7%), calves (0.3%) a nd heifers (0.2%). The prevalence of antigenaemia was highest in the lactat ing animals (54.7%), followed by that in dry animals (53.7%), heifers (51.1 %), late pregnant animals (47.7%), early pregnant animals (46.5%) and calve s (24.2%).