Chemical composition, digestibility and antinutritional factors content of two wild legumes: Styphonolobium burseroides and Acacia bilimekii.
The chemical composition, digestibility and toxin contents of two wild legumes: Styphnolobium burseroides and Acacia bilimekii, collected in a semi-arid zone of Mexico, were determined. Both legumes had a high fiber content. The seeds of Styphnolobium burseroides had a low protein content (14%), and the pod a high content of reducing sugars. However the seeds of Acacia bilimekii had a high protein concentration (35%). The seed proteins were low in sulphur amino acids and tryptophan in both legumes but were rich in lysine. Trypsin inhibitors and lectins were present in low concentrations; alkaloids and cyanogenic glucosides were not detected. The in vitro digestibility for monogastric animals was low but the same test with ruminal juice showed a high digestibility for both legumes. Based on their chemical composition and digestibility, these legumes could be a good alternative source in the feeding of ruminants.
Sotelo
A
A
Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, México DF.
Migliaro
P
P
Toledo
A
A
Contreras
J
J
D000596:Amino Acids / Q000032:analysis*; D000818:Animals; D004063:Digestion; D007887:Fabaceae / Q000737:chemistry*; D005504:Food Analysis / Q000379:methods; D008800:Mexico; D009753:Nutritive Value; D010940:Plant Proteins / Q000032:analysis*; D010946:Plants, Medicinal; D012639:Seeds
D000596:Amino Acids; D010940:Plant Proteins