A comparative study of experimental anaplasmosis in Bos indicus and Bos taurus cattle

Comparative studies were carried out on the susceptibility of 8 Bos taurus and 10 predominantly Bos indicus cross cows aged 48 months to Anaplasma marginale infection. Measurements were carried out on bodyweight, parasitaemia, haematological factors, humoral antibody response and serum transaminase levels. Except for minor differences in reaction Bos indicus and Bos taurus animals were equally susceptible to infecton with the strain of A. marginale employed. Such differences observed were not significant.