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Acta Scientiarum. Animal Sciences

On-line version ISSN 1807-8672


DOMINGUES, Alício Nunes et al. Nutrition value of silage from corn hybrids in the state of Mato Grosso, Brazil. Acta Sci., Anim. Sci. [online]. 2012, vol.34, n.2, pp.117-122. ISSN 1807-8672.

Nutrition value of silage from corn hybrids produced in Mato Grosso, State was evaluated. A randomized block design was used with 23 treatments (hybrids) and three replications. The study used hybrids from different seed companies. Fodder was stored in PVC pipes at a density of 600 kg of green mass m-3. The silos were opened 90 days after ensiling, and the following variables were studied: pH, dry matter (DM), ammoniacal nitrogen (N-NH3), crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN) and minerals (Ca, P, K and Mg). Rates were estimated for dry matter intake (DMI), dry matter digestibility (DM), net energy for maintenance (NEm), gain (NEg) and lactation (EL). All the characteristics were determined by near-infrared spectroscopy (NIR). With regard to standard fermentation, silage of different hybrids had appropriate values for pH and N-NH3. The silage of hybrids DKB 370, DKB 330, DAS 2C520, DAS 2B710, DAS 2B587, BF 9534, AG 9010, AG 8088, AG 5020, BE 9701, AGN 30A06 e AGN 31A31 showed lower NDF and higher estimated DMI values.

Keywords : bromatological composition; ensiling; intake; NDF; NIRS.

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