The effect of jugular or abomasal infusion of amino acids on milk yield in lactating cows fed a protein deficient diet M. Carole Thivierge, Jean F. Bernier, Pascal Dubreuil and Hélène Lapierre Reprod. Nutr. Dev., 42 1 (2002) 1-13 DOI: 10.1051/rnd:2002001