The use of doxycycline to control heartwater in sheep.

A ready-to-inject solution, containing 100 mg/ml doxycycline was used. Artificially infected sheep were divided into 2 groups: a control group consisting of 10 animals, and a treated group consisting of 12 animals. Doxycycline was administered intramuscularly to the animals in the treated group at a dosage rate of 2 mg/kg body mass. All the treated animals recovered. One control animal recovered spontaneously, the others all died.