Lack of Detectable Shedding of Cryptosporidium parvum Oocysts by Periparturient Dairy Cattle

Edward R Atwill, M. Das G C Pereira

Research output: Contribution to journalArticle

8 Scopus citations


We examined whether periparturient dairy cattle shed Cryptosporidium parvum oocysts within 12 hr of calving on 3 commercial dairy farms endemic for calfhood cryptosporidiosis. Using a diagnostic method that can detect as few as 1 oocyst per gram of feces, we found no evidence of C. parvum oocysts in 86 fecal samples collected within 12 hr of calving from 43 dairy cows.

Original languageEnglish (US)
Pages (from-to)1234-1236
Number of pages3
JournalJournal of Parasitology
Issue number6
StatePublished - Dec 2003


ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology
  • Microbiology

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