Therapeutic benefits and associated risks of whole blood transfusion in the management of haemolytic anaemia in cattle
摘要
Blood transfusion is an emergency therapy for managing the sick animal till the cause of the anaemia is known and treated. All the anaemic animals in addition to blood transfusion were given specific treatment as per the aetiology also. Clinical parameters were recorded before, during and after the transfusion (wherein heart rate, respiratory rate and rectal temperature were assessed at 1.5 min, 5 min, 30 min). The response to the treatment was evaluated through improvement in the clinical signs and increase in the erythrocyte count. In this study, 125 anaemic cows (haemoglobin less than 5 g/dl and/or packed cell volume less than 15%) were selected for the study. Out of 125 cases, 106 animals that were subjected to blood transfusion were suffering from theileriosis (46), babesiosis (28), anaplasmosis (11), mixed infection of Theileria and Babesia (15) and mixed infection of Theileria and Anaplasma (6). The survival rate was significantly higher in animals that received standard treatment along with whole blood transfusion (91.50%) as compared to animals that received standard treatment only (42.11%). Out of 106 animals which received blood transfusion, 97 animals survived but out of 19 animals in which blood transfusion could not be done, only 8 survived. Adverse reactions were seen in 11 animals in the form of acute haemolytic reactions in which 6 animals showed early acute haemolytic reaction and rest 5 animals showed late acute haemolytic reaction.