In vitro dry matter digestibility (IVDMD), crude protein and cell wall components in silage of seven sorghum genotypes cut at 102 days, varying in height and stem moisture were studied. Laboratory silos were opened after 7, 14, 28 e 56 days of fermentation. Crude protein ranged from 4.8 to 9.1% among the different types of sorghum. Plant height was not associated to grain proportion and digestibility; medium height sorghums showed the highest head percentage and the lowest IVDMD content. IVDMD was positively correlated with leaf percentage and negatively with the cell wall components.
Sorghum; silage; dry matter digestibility; crude protein; cell wall component
