TY - SER AU - Girard,C.L. TI - New approaches, development, and improvement of methodologies for the assessment of B-vitamin requirements in dairy cows KW - GADO LEITEIRO KW - DIETA KW - VITAMINA B KW - METABOLISMO KW - RÚMEN KW - FISIOLOGIA ANIMAL UR - http://www.scielo.br/pdf/rbz/v46n7/1806-9290-rbz-46-7-0614.pdf ER -