Digestibility and amino acid composition of digesta at the end of the ileum in preruminant calves fed soyabean protein I. Caugant, R. Toullec, M. Formal, P. Guilloteau and L. Savoie Reprod. Nutr. Dev., 33 4 (1993) 335-347 DOI: 10.1051/rnd:19930403