Feedipedia
Animal feed resources information system
Feedipedia
Feedipedia

Russian comfrey (Symphytum x uplandicum), aerial part, fresh

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 13.4 0.9 12.4 15.0 8
Crude protein % DM 18.6 4.1 14.6 29.3 14
Crude fibre % DM 11.4 1.9 9.4 14.0 5
NDF % DM 18.8 1
Ether extract % DM 3.6 1.1 2.5 5.4 5
Ash % DM 24.9 5.3 19.7 33.7 6
Gross energy MJ/kg DM 15.3 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 18.7 4.1 13.5 29.2 12
Phosphorus g/kg DM 4.9 1.7 3.4 10.0 12
Potassium g/kg DM 70.1 5.9 61.1 80.7 8
Magnesium g/kg DM 4.3 0.5 3.8 5.5 8
Copper mg/kg DM 17 3 12 21 8
Iron mg/kg DM 4125 794 2700 5500 8
 
Amino acids Unit Avg SD Min Max Nb
Alanine % protein 7.1 1.2 5.3 8.5 7
Arginine % protein 5.4 1.1 3.6 6.9 7
Aspartic acid % protein 11.6 0.5 10.9 12.0 6
Glutamic acid % protein 13.1 1.3 11.3 14.4 7
Glycine % protein 6.2 1.4 3.2 7.2 7
Histidine % protein 1.7 0.2 1.5 1.9 4
Isoleucine % protein 5.0 1.1 3.8 6.0 3
Leucine % protein 7.0 1.3 5.6 8.4 4
Lysine % protein 3.6 3.4 3.8 2
Phenylalanine % protein 5.0 0.9 4.1 5.8 3
Proline % protein 5.9 0.2 5.6 6.1 7
Serine % protein 4.7 0.5 3.7 5.2 7
Threonine % protein 5.0 0.7 3.6 5.8 7
Tyrosine % protein 3.8 0.5 3.2 4.3 4
Valine % protein 6.8 1.1 5.0 8.2 7
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 84.0 *
Energy digestibility, ruminants % 80.3 *
DE ruminants MJ/kg DM 12.2 *
ME ruminants MJ/kg DM 9.8 *
ME ruminants (FAO, 1982) MJ/kg DM 10.5 1
Nitrogen digestibility, ruminants % 82.2 1
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 72.1 *
DE growing pig MJ/kg DM 11.0 *

The asterisk * indicates that the average value was obtained by an equation.

References

Bareeba et al., 1992; El-Bassousy et al., 1975; Nheta et al., 2005; Patel, 1966; Strange, 1959; Van Rensburg, 1956

Last updated on 24/10/2012 00:44:56

Table status 
Finished
Table order 
1
1 029