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Long-acting oxytetracycline prophylaxis to protect susceptible cattle introduced into an area of Kenya with endemic East Coast fever.

Abstract
Two field trials were carried out in successive years at the Ngong Veterinary Farm, Kenya, in which young cattle, previously unexposed to tick-borne diseases, were introduced into an area with endemic East Coast fever while protected by a series of injections of a long-acting oxytetracycline. In 1984, 12 animals which received injections of 20 mg/kg of the drug on days 0, 7, 14 and 21 after introduction, together with 12 untreated controls, were exposed without tick control until clinical disease occurred. All 12 control animals contracted East Coast fever by day 24 and 10 of them died. Five of the 12 injected animals had detectable parasites, and one of them required antitheilerial treatment. In 1985, four groups of 10 calves were introduced. One group received injections of 20 mg/kg of oxytetracycline on days 7 and 14, one group received injections on days 7, 14 and 21, and a third group received injections on days 7, 12 and 17; the fourth group (controls) had no treatment until clinical disease occurred. By day 35 all the control animals had contracted the disease and one had died despite antitheilerial treatment. Three injections of oxytetracycline suppressed the disease so that mild reactions occurred in only four animals in each group, but two injections failed to prevent severe reactions in two animals and mild reactions in four others.(ABSTRACT TRUNCATED AT 250 WORDS)
AuthorsR S Chumo, A D Irvin, S P Morzaria, J Katende, R E Purnell
JournalThe Veterinary record (Vet Rec) Vol. 124 Issue 9 Pg. 219-22 (Mar 04 1989) ISSN: 0042-4900 [Print] England
PMID2929111 (Publication Type: Journal Article)
Chemical References
  • Oxytetracycline
Topics
  • Animals
  • Cattle
  • Female
  • Kenya
  • Male
  • Oxytetracycline (therapeutic use)
  • Theileriasis (prevention & control)
  • Ticks

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