Título:	Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities.
Autoria:	FREITAS, P. M. D. de CARVALHO, G. G. P. de SANTOS, E. M. ARAUJO, G. G. L. de OLIVEIRA, J. S. de PIRES, A. J. V. MARANHÃO, C. M. de A. RODRIGUES, T. C. G. DE C. PINTO, L. F. B.
Afiliação:	POLIANE MEIRE DIAS DE FREITAS, UNIVERSIDADE FEDERAL DA BAHIA; GLEIDSON GIORDANO PINTO DE CARVALHO, UNIVERSIDADE FEDERAL DA BAHIA; EDSON MAURO SANTOS, UNIVERSIDADE FEDERAL DA PARAÍBA; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; JULIANA SILVA DE OLIVEIRA, UNIVERSIDADE FEDERAL DA PARAÍBA; AURELIANO JOSÉ VIEIRA PIRES, UNIVERSIDADE ESTADUAL DO SUDOESTE DA BAHIA; CAMILA MAIDA DE ALBUQUERQUE MARANHÃO, UNIVERSIDADE ESTADUAL DE MONTES CLAROS; THOMAZ CYRO GUIMARÃES DE CARVALHO RODRIGUES, UNIVERSIDADE FEDERAL DA BAHIA; LUÍS FERNANDO BATISTA PINTO, UNIVERSIDADE FEDERAL DA BAHIA.
Ano de publicação:	2017
Referência:	Pesquisa Agropecuária Brasileira, v. 52, n. 8, p. 679-690, fev. 2017.
Conteúdo:	The objective of this work was to evaluate the effects of urea ammoniation of pearl millet silage, at different compaction densities, on chemical composition, losses in the ensilage process, fermentation profile, microbial population count, and aerobic stability. The experimental design was completely randomized, in a 2×4 factorial arrangement, with two compaction densities (600 and 800 kg m-³) and four urea levels (0, 2, 4, and 6% on a dry matter basis), with five replicates. For the aerobic stability assay, the experimental design was completely randomized, in a 2×4 factorial arrangement, with two times (0 and 72 hours) and four urea levels (0, 2, 4, and 6%, on dry matter basis), with five replicates. The urea levels interacted significantly with density as to the contents of organic matter, crude protein, neutral detergent insoluble protein, and as to dry matter recovery; and with exposure hours as to the contents of acid detergent fiber and lignin. Molds and yeasts were not observed in the ammoniated silages. The 800 kg m-³ density reduced losses in the fermentation process of pearl millet silage, and promoted better nutritive value than the compaction at 600 kg m-³. The use of urea does not reduce losses and does not improve the aerobic stability of silages; however, it controls mold growth after silage exposure to air.
Thesagro:	População microbiana Pennisetum Glaucum Silagem Uréia Milheto
NAL Thesaurus:	Pastures Millets Pearls
Palavras-chave:	ADR500 Ammoniation Fermentation losses Microbial populations Amonização Perdas por fermentação Populações microbianas
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)