Failure of brewer's yeast as a repellent to fleas on dogs.

N. F. Baker, T. B. Farver

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Active and inactive brewer's yeast, when given as a dietary supplement to dogs at the rate of 14 g/day, failed to repel or kill fleas. Twenty dogs in each of 3 groups were inoculated weekly for 7 weeks with 100 unfed cat fleas (Ctenocephalides felis). One group served as a control while one group received inactive and the other active yeast during the last 5 weeks of the trial. There were no significant differences in flea counts among the 3 groups during the first 4 weeks of yeast supplemental feedings. Total flea counts during the 5th week of yeast supplementation did not differ significantly from the counts on control dogs, although there was a significant difference between counts from dogs receiving active and those receiving inactive yeast.

Original languageEnglish (US)
Pages (from-to)212-214
Number of pages3
JournalJournal of the American Veterinary Medical Association
Issue number2
StatePublished - Jul 15 1983

ASJC Scopus subject areas

  • veterinary(all)


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