A new bovine β-casein genetic variant characterized by a Met Leu93 substitution in the sequence A2 Daniel Senocq, Daniel Mollé, Sylvie Pochet, Joëlle Léonil, Didier Dupont and Didier Levieux Lait, 82 2 (2002) 171-180 DOI: 10.1051/lait:2002002