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Prevention of coccidiosis in bobwhites by medication.

Abstract
The efficacy of amprolium, monensin, and salinomycin in preventing coccidiosis in bobwhite quail was studied using a mixed inoculum of equal numbers of Eimeria dispersa and E. lettyae. A total dosage per quail of 10(6) sporulated oocysts was chosen because this dosage gave a good (77%) depression of weight gain from Day 18 to Day 24. Levels of .008% monensin or .0055% salinomycin were the most effective for prevention of coccidiosis as evaluated by body weight gains. These levels significantly reduced parasite numbers in the duodenum with monensin administration and in both the duodenum and ileum with salinomycin administration. Monensin reduced parasite numbers in the illeum significantly in one experiment and in a second. Amprolium was ineffective for prevention of coccidiosis, as evaluated by body weight gains. Amprolium was also ineffective in consistently reducing parasite numbers in the duodenum and ileum. Both monensin and salinomycin had a reasonable safety margin in quail. Levels of monensin of .016%, twice the proposed level, significantly reduced body weight at 14 days of age compared with unmedicated controls or quail given .008% monensin. By 28 days, however, this effect was no longer significant. Levels of salinomycin at the proposed level of .0055% significantly reduced body weight at 14 days of age compared with unmedicated controls. By 28 days, however, this effect was no longer significant in quail given .0055% or .00825% salinomycin, although in quail fed .011% salinomycin body weights remained significantly lower (16.5%) at that date. There were no detectable monensin residues in the liver of quail fed a ration containing .008% monensin for 8 wk.(ABSTRACT TRUNCATED AT 250 WORDS)
AuthorsM D Ruff, G C Wilkins, M B Chute
JournalPoultry science (Poult Sci) Vol. 66 Issue 9 Pg. 1437-45 (Sep 1987) ISSN: 0032-5791 [Print] England
PMID3684868 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Coccidiostats
  • Pyrans
  • salinomycin
  • Monensin
  • Amprolium
Topics
  • Amprolium (administration & dosage, therapeutic use)
  • Animals
  • Bird Diseases (parasitology, prevention & control)
  • Coccidiosis (prevention & control, veterinary)
  • Coccidiostats (administration & dosage, therapeutic use)
  • Colinus
  • Monensin (administration & dosage, therapeutic use)
  • Pyrans (administration & dosage, therapeutic use)
  • Quail

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