TY - JOUR

T1 - Características de fermentação da silagem de seis variedades de milho indicadas para a região semiárida brasileira

AU - Santos, R. D.

AU - Pereira, L. G.R.

AU - Neves, A. L.A.

AU - Araújo, G. G.L.

AU - Voltolini, T. V.

AU - Brandão, L. G.N.

AU - Aragão, A. S.L.

AU - Dórea, J. R.R.

PY - 2010/12

Y1 - 2010/12

N2 - The fermentation characteristics and silage quality of six maize varieties of early and super early cycles were evaluated. They are recommended for the Brazilian semi-arid region (BRS Caatingueiro, BRS Assum Preto, BR 5033 - Asa Branca, BR 5028 - São Francisco, Gurutuba and BRS 4103). Experimental silos were used, in a completely randomized design, with six treatments (varieties) and four replicaties. The evaluated parameters were: dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), ether extract (EE), total carbohydrates (CHO), non-fibrous carbohydrates (NFC), pH, ammoniacal nitrogen as part of the total nitrogen (N-NH3/TN), organic acids, and in vitro dry matter digestibility (IVDMD) of the silages. The mean values found for silage were: DM= 29.6%; OM= 94.9%; CP= 8.2%; NDF= 49.9%; ADF= 27.5%; EE= 3.8%; CHO= 82.7%; NFC= 32.8%; pH= 3.8; N-NH3/TN= 2.9%/TN; lactic acid = 7.6%; acetic acid = 0.6%; butyric acid = 0.3%; and IVDMD = 57.9%. Varieties BR 5028 - São Francisco and Gurutuba stood out (P<0.05) from others in relation to dry matter. The BRS Caatingueiro showed higher (P<0.05) level of non-fiber carbohydrates in relation to the others. The silages from all the varieties were considered of excellent quality, with potential to be conserved as silage in the Brazilian semi-arid.

AB - The fermentation characteristics and silage quality of six maize varieties of early and super early cycles were evaluated. They are recommended for the Brazilian semi-arid region (BRS Caatingueiro, BRS Assum Preto, BR 5033 - Asa Branca, BR 5028 - São Francisco, Gurutuba and BRS 4103). Experimental silos were used, in a completely randomized design, with six treatments (varieties) and four replicaties. The evaluated parameters were: dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), ether extract (EE), total carbohydrates (CHO), non-fibrous carbohydrates (NFC), pH, ammoniacal nitrogen as part of the total nitrogen (N-NH3/TN), organic acids, and in vitro dry matter digestibility (IVDMD) of the silages. The mean values found for silage were: DM= 29.6%; OM= 94.9%; CP= 8.2%; NDF= 49.9%; ADF= 27.5%; EE= 3.8%; CHO= 82.7%; NFC= 32.8%; pH= 3.8; N-NH3/TN= 2.9%/TN; lactic acid = 7.6%; acetic acid = 0.6%; butyric acid = 0.3%; and IVDMD = 57.9%. Varieties BR 5028 - São Francisco and Gurutuba stood out (P<0.05) from others in relation to dry matter. The BRS Caatingueiro showed higher (P<0.05) level of non-fiber carbohydrates in relation to the others. The silages from all the varieties were considered of excellent quality, with potential to be conserved as silage in the Brazilian semi-arid.

KW - Corn

KW - Organic acids

KW - Ruminants

KW - Silage

KW - Vitro digestibility

UR - http://www.scopus.com/inward/record.url?scp=79952668049&partnerID=8YFLogxK

U2 - 10.1590/S0102-09352010000600019

DO - 10.1590/S0102-09352010000600019

M3 - Tidsskriftartikel

AN - SCOPUS:79952668049

VL - 62

SP - 1423

EP - 1429

JO - Arquivo Brasileiro de Medicina Veterinaria e Zootecnia

JF - Arquivo Brasileiro de Medicina Veterinaria e Zootecnia

SN - 0102-0935

IS - 6

ER -