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EFFECT OF PARTICLE SIZE AND CUTTING HEIGHT OF CORN (Zea mays L.) FOR SILAGE ONPRODUCTION PARAMETERS, VEGETATIVE COMPOSITION AND FEEDLOT PERFORMANCE OF STEERS

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Author(s): MIKAEL NEUMANN | PAULO ROBERTO FRENZEL MÜHLBACH | JOÃO RESTLE | PAULO ROBERTO OST | SEBASTIÃO BRASIL CAMPOS LUSTOSA | MARGARETE KIME FALBO

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

Volume: 6;
Issue: 3;
Start page: 379;
Date: 2007;
Original page

Keywords: animal performance | production cost | dry matter production | silage losses | system of lucrativity

ABSTRACT
The experiment was conducted at the Núcleo de Produção Animal (NUPRAN)of the Universidade Estadual do Centro Oeste do Paraná (UNICENTRO). The trial aimed to evaluate the effect of particle size (small: between 0.2 and 0.6 cm or large: between 1.0 and 2.0 cm) and cutting height (low cut: 15 cm or high cut: 39 cm) of the corn plant on agricultural value, vegetable composition and production costs of silages. The treatments were: T1 – small particle size with low cut height; T2 - large particle size with low cut height; T3 - small particle size with high cut height; and T4 - large particle size with high cut height. The low cut height system showed an increase (P 05) the animal performance in feedlot with roughage:concentrate ratio at 62.7:37.3. The silage with high cut and small particle size on feedlot resulted in higher (P< 05) production system lucrative.
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