| |
| | AVJ 75,5,May'97 pp337- |
 | | Objective To assess the innate resistance of naive Bos taurus, Bos taurus cross Bos indicus and Bos indicus cattle to virulent Babesia bovis, B bigemina and Anaplasma marginale parasites. |
 | | After the A marginale infection, B indicus steers were moderately affected with 50% requiring treatment, whereas 70% of the fi B indicus group, 80% of the / B indicus cross group and 100% of the pure B taurus group required treatment. |
 | | Ten pure B indicus, 10fi B indicus x fi B taurus, 10/ B indicus x fl B taurus and 10 pure B taurus steers, 15 to 18 months of age, were purchased from a property with a defined cross-breeding program in an area of Queensland free of B microplus. |
| www.ava.com.au /avj/may97/337.htm (2971 words) |
|