Relationship between protein intake (PDI) and net portal appearance rate of amino acids in lactating goats C. Champredon, S. Tesseraud, E. Debras, G. Bayle, J. Lefaivre and J. GrizardAnn. Zootech., 43 3 (1994) 304DOI: https://doi.org/10.1051/animres:19940371