Mupangwa J F, Ngongoni N T, Daka D E and Hamudikuwanda H 2002:
The effect of supplementing a basal diet of veld grass hay with increasing levels of velvet bean hay (Mucuna pruriens) on nutrient parameters in sheep.
Livestock Research for Rural Development. Volume 14, Article #34.
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, from http://www.lrrd.org/lrrd14/4/mupa144.htm