NUTRIENT CONTENT AND DEGRADABILITY OF DRY MATTER IN WHOLE PLANTS OF MAIZE
Keywords:
maize plants, in sacco method, degradabilityAbstract
The objective of our study was to determine the nutrients content and dry matter degradability in whole plants of maize hybrids dent and dent x flint. Hybrids dent x flint − Mesnil, Chambord, Queen, and hybrids dent − Aude, Meridien, KX 1393, Omero were used. Concentration of crude protein (CP) was higher in dent hybrids (85.0 g.kg-1 DM) compared to dent x flint hybrids (78.3 g.kg-1 DM). Content of starch ranged from 205.2 g.kg-1 DM (KX 1393 − dent) to 329.4 g.kg-1 DM (Mesnil), higher for hybrids dent x flint. ADF and NDF were higher in hybrids dent and content of lignin was similar. In sacco experiment was carried out in three rumen-cannulated cows with large rumen cannulas. Hybrids dent x flint had in average higher effective dry matter degradability (DMD) − 56.8 % than dent hybrids 54.7 %.
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