AVALIAÇÃO DA QUALIDADE NUTRICIONAL DE SILAGENS DE MILHO (Zea mays, L)
2007
Elzania Sales Pereira | Ivone Yurica Mizubuti | Sonia Maria Pinheiro | Arturo Bernardo Selaive Villarroel | Rossana Herculano Clementino
The study was aimed of evaluating the nutritive value of silages from five corn hybrids (AG 122, AG9090, AG 5011, Dow 766 and DKB 747). The used five treatment with four replications in a completely randomized design to evaluate pH, ammonia nitrogen (N-NH3), dry matter (DM), crude protein (CP), ether extract (EE), mineral matter (MM), neutral (NDF) and acid detergent fiber (ADF), total carbohydrates (TC) and nonstructural carbohydrates (NSC). The ether extract rates (EE), mineral matter (MM), neutral (NDF) and acid detergent fiber (ADF) and non-structural carbohydrates (NSC) was not affected by corn hybrids. The AG 122, AG 9090 and DOW 766 did not differ significantly with values from pH the 3.42, 3.31 and 3.40, respectively. The AG 122 and DOW 766 showed maximum value of N-NH3 (2.89 mg/100ml). The lower values of N-NH3 was found inthe AG 9090 (0.87 mg/100ml) and DKB 747 (1.05 mg/100ml). The DOW 766 and AG 9090 had higher value of MS rates, 33.51 and 32.32 %, respectively. In the silages, the pH and N-NH3 values had demonstrated that five corn hybrids supplying a good fermentation standard, all the corn hybrids can be classified like a good quality for silages.
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