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Acute maduramicin toxicity in calves
  1. A. Shlosberg, BVSc, MRCVS1,
  2. S. Perl, DVM1,
  3. A. Harmelin, DVM1,
  4. V. Hanji, BSc1,
  5. M. Bellaiche, DVM1,
  6. E. Bogin, PhD1,
  7. R. Cohen, DVM2,
  8. O. Markusfeld-Nir, BVSc, MRCVS2,
  9. N. Shpigel, BVSc, MRCVS3,
  10. Z. Eisenberg, DVM3,
  11. M. Furman, BSc4,
  12. A. Brosh, PhD5,
  13. Z. Holzer, PhD5 and
  14. Y. Aharoni, PhD5
  1. 1 Kimron Veterinary Institute, PO Box 12, 50250 Bet Dagan, Israel
  2. 2 HaHaklait, Haifa, Israel
  3. 3 Koret Veterinary School, Bet Dagan, Israel
  4. 4 Plant Protection Agency, Bet Dagan, Israel
  5. 5 Agricultural Research Organization, Neveh Ya'ar, Israel

Abstract

A herd of 277 beef-breed calves in three age groups was mistakenly given the poultry coccidiostat maduramicin in a total mixed ration. It caused an acute toxicosis in which sudden death was the sole clinical finding in most cases. One group of 212 calves aged five to eight months suffered a mortality of 51 per cent in eight days and a total mortality of 56 per cent during the 40 days in which mortality was recorded. Mortality of only 3 per cent was recorded in two other groups of calves aged nine to 16 months in eight days and a total mortality of 11 per cent over the 40-day period.

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