RESUMOAvaliou-se o efeito de dietas com níveis de proteína bruta -PB (10, 12, 14 e 16% na matéria seca -MS) em vacas Holandesas mestiças com produção de leite médio (PL) de 13kg/dia. Utilizou-se silagem de milho como volumoso, e a relação volumoso:concentrado foi 65.09, 67.23, 78.35 and 67.92 at levels of 15.39, 15.22, 12.62 and 15.68% CP, respectively. The MP, without and with a correction to 3.5% fat, body weight variation and composition of the milk increased linearly, except for lactose which had no ef…
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