O presente trabalho revek os resultados de 524 necrópsias realizadas em bezerros de plantel zebu, mantidos em regime de crkço extensiva.Concluiu-se que as mortes mais freqüentes são causadas pelas “septicemias dos recérn-nascidos’ e a broncopneumonia.

In this paper are presented Lhe rcsult of 524 post-rnorteni examinations made on dead calves from a ranch in the State of So Paulo, Brasil, where the cattle is kept under exclusive pasture conditions.It shows that the niost common causes of (leath are the septicoemlc díseases of newborn caives and broncho-pneumonia.