Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 1454-1458

Oocistos deCryptosporidium parvum em fezes de bezerro infectado experimentalmente

Martins-Vieira, M. B. CBrito, L. A. LHeller, L

A dose of 5.0x106 Cryptosporidium parvum oocysts was inoculated in a newborn calf. After the inoculation, the feces were daily collected and the presence of oocysts was examined on slides using 0.17% green malachite dye. The total yield reached 1.5x1010 oocysts, with a peak production on the 7th day, confirming the infectious process and the role of calf infection in the potential risk for environmental contamination. (AU)

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