Agronomic characteristics, chemical composition and quality of the silage of eigth corn cultivars

Authors

  • Evaldo Ferrari Júnior Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagem, Nova Odessa, SP
  • Rosana Aparecida Possenti Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagem, Nova Odessa, SP
  • Maria Lúcia Pereira Lima Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Centro Leste, Ribeirão Preto, SP
  • José Ramos Nogueira Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Centro Leste, Ribeirão Preto, SP
  • João Batista de Andrade Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagem, Nova Odessa, SP

Keywords:

chemical composition, cultivars, in vitro digesbility, organic acids, silage

Abstract

The experiment was conducted at the Animal Science Institute (Instituto de Zootecnia), Nova Odessa and Apta Regional, Ribeirão Preto, S.P, for agronomic evaluations of eight corn cultivars and their silages. Using randomized blocks design with three replications it was estimated the plant population, number of ears by lineal meter, plant and ears height, green matter and dry matter production and percentage of grains in the dry matter. It was determined N-NH3, pH, organic acids, DM, CP, MM, NDF, ADF, lignin and in vitro digestibility of organic matter (IVDOM) in the silages. No influence of cultivars was observed for plant population and number of ears by lineal meter, however, differences occurred for plants and ears heights, green matter production and percentage of grains in DM. All the silages presented DM above of 35% with exception for P30F80. No statistical difference was found for CP, EE, MM, IVDOM, Lignin and N-FDA. There were difference in the NDF, N-NDF, ADF, N-NH3, lactic acid, acetic acid contents and pH values among cultivars. The most productive cultivar was XB8028. All the silages presented chemical characteristics that characterize them as good quality silages.

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Published

2013-11-28

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Agronomic characteristics, chemical composition and quality of the silage of eigth corn cultivars. (2013). Bulletin of Animal Husbandry, 62(1), 19-27. http://bia.iz.sp.gov.br/index.php/bia/article/view/1312

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