SILVA, V. L. DA; SILVA, F. F. DA; SILVA, R. R.; TEIXEIRA, F. A.; COSTA-LOPES, L. S.; SOUZA, D. R. DE. <b&gt;Ethology of cross-breed cows milked in the presence or absence of calves. Acta Scientiarum. Animal Sciences, v. 36, n. 4, p. 433-437, 24 set. 2014.