The aim of this study was to evaluate the effect of different technologies used for corn silage harvest on qualitative parameters of whole-plant chopped material. Harvest technologies vary namely using different corn cracker concept (classical, MCC MAX and Shredlage). Chemical composition, proportion of chop length, kernel processing, physically effective fiber (peNDF) and rumen degradability were determined and compared. The best-processed kernel and also the highest content of peNDF in corn silages produced by technology Shredlage were detected. Compared with the classical corn cracker concept, the chopped material, produced by MAX and Shredlage technologies, had the higher rumen degradability of dry matter, neutral-detergent fiber and starch.