Effect of virginiamycin and bovine somatotropin on growth, nutrient conversion and blood parameter in young female calves V. Skřivanová, M. Marounek, J. Škarda, J. Šimůnek and P. Krejčí Ann. Zootech., 45 5 (1996) 477-482 DOI: 10.1051/animres:19960509