Proximate and amino acid composition of seeds of Canavalia ensiformis.Toxicity of the kernel fraction for chicks A. Leon, I. Angulo, M. Picard, B. Carré, L. Derouet and J.P. Harscoat Ann. Zootech., 38 4 (1989) 209-218 DOI: 10.1051/animres:19890301