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PRODUCTIVE AND QUALITATIVE CHARACTERISTICS OF CORN HYBRIDS FOR SILAGE PRODUCTION

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Author(s): RENIUS MELLO | JOSÉ LAERTE NÖRNBERG | MARTA GOMES DA ROCHA | DIEGO BITENCOURT DE DAVID

Journal: Revista Brasileira de Milho e Sorgo
ISSN 1676-689X

Volume: 4;
Issue: 1;
Start page: 79;
Date: 2005;
Original page

Keywords: bromatological composition: mineral composition | NDF digestibility | nutritional value | TDN | yield

ABSTRACT
The study of corn genotypes available in the market is of great interest for producers and researchers of the animal and agronomic science. The objective of this trial was to evaluate the productive and qualitative potential of corn hybrids for silage production. The treatments consisted of six corn hybrids: DKB-215, DKB-344, C-747, AS-32, BR-201 and OC-705. The variables analyzed were: height (m), fresh and dry matter yields (FMY and DMY, t ha-1), contribution of each structural component of the plant (stem, leaves and ears), dry matter content (DM), pH, ammoniacal nitrogen as percentage of the total nitrogen (NH3-N%/TN), cell wall composition (NDF, HEM, ADF, CEL, ADL), organic matter (OM), crude protein (CP), ether extract (EE), total carbohydrates (TC), non-fiber carbohydrates (NFC), digestible neutral detergent fiber (NDFd), digestibility of the neutral detergent fiber (DNDF), calcium (Ca), phosphorus (P), potassium (K), magnesium (Mg), in vitro dry matter digestibility (IVDMD) and total digestible nutrient (TDN). A randomized block design, with six treatments and four replicates was used. The FMY and DMY differed (P
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