Abstract
Thirty-four Anaplasma marginale seropositive cows from a herd of 236 were allocated to treatments: 5 animals served as untreated controls, and 29 animals were treated with three injections of long-acting oxytetracycline at three-day intervals. Fourteen days after initiation of treatment, 100% of control cows and 89% of treated cows were found to have Anaplasma marginale present. Seventyfour days after initiation of treatment, 100% of control cows and 86% of treated cows were found to have Anaplasma marginale present. Use of injectable long-acting oxytetracycline was not effective in eliminating the carrier state of Anaplasma marginale from infected animals.
Keywords: Cattlemen's Day, 2004, Kansas Agricultural Experiment Station contribution, no. 04-242-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 923, Beef, Anaplasma marginale, Oxytetracycline
How to Cite:
Gnad, D., Marston, T., Llewellyn, D. A., Palmer, G. & Hollis, L. C., (2004) “Failure to eliminate the carrier state of Anaplasma marginale by using long-acting injectable oxytetracycline”, Kansas Agricultural Experiment Station Research Reports 1(1), 94-96. doi: https://doi.org/10.4148/2378-5977.1617
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