Table 3
Feed analyses for conventional and organic concentrate and roughage of clover grass silage and barley/pea silage (avg. of 4 analysed feed samples per type
of concentrate and type of roughage, one sample from each of the 4 trials)
Treatment Concentrate Roughage
A Conv. conc. B + C + D Org. conc. C Barley/pea silage D Clover grass sil.
Total N (Kjeldahl) (g/100 g) 3.33 3.35 2.29 2.92
Stoldt fat (g/100 g) 5.47 3.57 3.54 4.53
Crude fibre (g/100 g) 4.65 5.89 28.31 24.39
Ash (g/100 g) 6.01 5.46 8.99 9.92
EDOMa (pig) (g/100 g org. matter) 88.6 87.0 52.0 60.9
Gross energy 18.9 18.6 17.6 17.9
Digestible energy 15.88 15.28 7.63 9.53
Metabolisable energy 15.3 14.73 7.23 9.03
Net energy (MJb /kg DMc
) 9.6 9.16 3.55 4.89
Dry matter (%) 89.4 89.6
Freeze-dried dry matter (%) 92.1 89.5
Net energy (MJ/kg feed) 8.57 8.20 0.87 2.01
a Enzyme-digestible organic matter. b Feed units pigs; 1 FUp = 7.72 MJ. c Dry matter.