2017-09-192017-09-191988-12ROSA, Beneval; ROCHA, Gudesteu Porto. Índice de valor nutritivo e balanço nitrogenado dos fenos de brachiaria decumbens stapf cv. australiana e brachiaria ruziziensis germain & evrard em diferentes idades de corte. Anais da Escola de Agronomia e Veterinária, Goiânia, v. 18, n. 1, p. 35-46, jan./dez. 1988. Disponível em: <https://www.revistas.ufg.br/pat/article/view/2541/2516>.0100-218Xhttp://repositorio.bc.ufg.br/handle/ri/12503This work was conducted at the Departament of Animal Science, Escola Superior de Agricultura de Lavras, Lavras, Minas Gerais, from July, 1980, to October, 1981. It was designed to campare the nutritive value index and the nitrogen balance of their hays at three different growth stages (60, 90 and 120 days). The nutritive value index and nitrogen balance was determined using 12 (twelve) sheep in metabolic cages. Toe experiment was divided into three parts. Each part was statistically analysed on a 3 x 2 factorial scheme with two repetitions within a completeley random experimental design. At the end, lhe collected data were statistically analysed as a single experiment. Results permitted the following conclusion: the age more indicated for production of hay was between 60 to 90 days of growth in both species analysed.porAcesso AbertoArtigo