Feedipedia
Animal feed resources information system
Feedipedia
Feedipedia

African yam bean (Sphenostylis stenocarpa), seeds

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 91.0 1.0 90.2 92.5 6
Crude protein % DM 23.4 1.5 21.6 25.9 9
Crude fibre % DM 8.6 1.8 6.0 9.9 4
Ether extract % DM 2.7 1.3 1.1 4.2 6
Ash % DM 4.2 0.7 3.2 5.0 6
Gross energy MJ/kg DM 18.9 1.0 16.3 18.9 4 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 0.6 1
Phosphorus g/kg DM 3.3 1
Potassium g/kg DM 0.0 1
Magnesium g/kg DM 1.8 1
Manganese mg/kg DM 23 1
Zinc mg/kg DM 27 1
Copper mg/kg DM 16 1
Iron mg/kg DM 33 1
 
Amino acids Unit Avg SD Min Max Nb
Alanine % protein 4.3 0.2 3.9 4.6 5
Arginine % protein 6.0 0.9 5.1 7.3 5
Aspartic acid % protein 10.3 1.2 8.8 11.5 5
Cystine % protein 2.3 0.2 2.0 2.6 5
Glutamic acid % protein 14.4 1.7 11.8 16.4 5
Glycine % protein 4.3 0.2 4.0 4.5 5
Histidine % protein 4.5 0.5 4.0 5.3 5
Isoleucine % protein 3.9 0.7 2.6 4.5 6
Leucine % protein 7.3 0.3 7.0 7.8 6
Lysine % protein 8.6 0.7 7.4 9.3 6
Methionine % protein 1.3 0.1 1.2 1.4 5
Phenylalanine % protein 5.4 0.4 4.6 5.8 6
Proline % protein 4.5 0.3 4.1 4.8 5
Serine % protein 5.9 0.6 5.0 6.4 5
Threonine % protein 3.8 0.3 3.4 4.2 6
Tryptophan % protein 1.3 1
Tyrosine % protein 4.2 0.3 3.8 4.5 6
Valine % protein 4.6 0.5 3.8 5.3 6
 
Secondary metabolites Unit Avg SD Min Max Nb
Tannins (eq. tannic acid) g/kg DM 55.1 33.4 20.0 86.4 3
 
Poultry nutritive values Unit Avg SD Min Max Nb
AMEn broiler MJ/kg DM 13.1 1.0 12.0 13.7 3

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

References

Agunbiade et al., 1999; Akinmutimi et al., 2006; Evans et al., 1974; Nwokolo et al., 1985; Nwokolo, 1987; Onyeike et al., 2002

Last updated on 24/10/2012 00:43:22

Table status 
Finished
Table order 
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