Pereira, L. G. R., Maurício, R. M., Gonçalves, L. C., Tomich, T. R., Rodrigues, J. A. S. and Rodriguez, N. M. (2005) “Evaluation of silages from hybrid m734 of sunflower obteined in diferent cutting times using the semi-automated "in vitro" gas production technique”, Brazilian Journal of Veterinary Research and Animal Science, 42(4), pp. 276-283. doi: 10.11606/issn.1678-4456.bjvras.2005.26422.