Frações proteicas do capim-mombaça submetido a doses de nitrogênio em duas alturas de corte
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Data
2009-10
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Editor
Universidade Federal de Minas Gerais, Escola de Veterinária
Resumo
The protein fractions of mombaça grass submitted to four nitrogen doses (0, 100, 300, and 500kg.ha-1) at two cutting heights in dry and rainy periods were characterized and identified. A completely randomized block design, in 2x4 factorial scheme with four repetitions, was used. The crude protein (CP) and A, B1, B2, B3, and C protein fractions of mombaça grass cut at 0.20 and 0.40m were evaluated by the Cornell Net Carbohydrate and Protein System. There was significant difference (P<0.05) for CP according to the nitrogen (N) dose. The CP percentage increased as the N dose increased, in rainy period, averaging around 10%. There was difference for CP in function of season and cutting heights. The B1 and C fractions did not significantly differ concerning N dose and cutting heights. The A + B1 fractions were higher in the dry period in both heights (P<0.05). The N dose and cutting heights influenced in protein fractions composition.
Descrição
Palavras-chave
Capim-mombaça, Panicum maximum, Adubação nitrogenada, Composto nitrogenado, Mombaça grass, Nitrogen composites, Nitrogen fertilization
Citação
SILVA, A. G.; FRANÇA, A. F. S.; MIYAGI, E. S.; MELLO, S. Q. S.; FERREIRA, J. L.; CARVALHO, E. R. Frações proteicas do capim-mombaça submetido a doses de nitrogênio em duas alturas de corte. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 61, n. 5, p. 1148-1155, out. 2009.