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Table 2 Feed values of silages and concentrate blends used on an Irish dairy farm during investigation of poor production performance.

From: An investigation into reduced milk production following dietary alteration on an Irish dairy farm

Feedstuff DM* (%) ME*(MJ/kg) FME*(MJ/Kg) CP*(g/Kg) NE*(UFL/kg) PDIE*(g/Kg) PDIN*(g/Kg) STARCH(g/Kg)
1st Cut Grass Silage 28.6 10.4 8.1 131 0.76 71 77 NA
2nd Cut Grass Silage 34.9 9.9 8.0 126 0.72 70 74 NA
Maize silage (estimated) 30.4 11.5 9.0 88 0.8 68 50 290
Maize Silage (analysed) 22.7 10.6 NA 89 NA NA NA 169
Blend 1 (used before nutritional assessment)** 88.6 13.5 11.7 284 1.16 158 196 128
Blend 2 (advised at nutritional assessment)** 88.7 13.5 11.8 265 1.16 149 179 156
Blend 3 (actually used after nutritional assessment)** 88.6 131 1.6 211 1.10 120 139 254
  1. *DM = Dry matter; ME = Metabolisable energy; FME = Fermentable metabolisable energy; CP = Crude Protein; NE = Net energy; PDIE = Protein digestible in the small intestine when rumen energy is the limiting factor; PDIN = Protein digestible in the small intestine when rumen nitrogen is limiting **See table 5 for components of Blend 1, 2 and 3. NA = Not available.