NUTRIENT CONTENT AND DEGRADABILITY OF DRY MATTER IN WHOLE PLANTS OF MAIZE

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Zuzana Mlyneková
Maria Chrenkova
Zuzana Formelova

Abstract

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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References

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