Pressing of forage and adition of ground corn ears at the ensiling of elephantgrass. 2-Quality and nutritive value of the silage

Authors

  • João Batista de Andrade Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Nova Odessa, SP
  • Evaldo Ferrari Junior Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Nova Odessa, SP
  • Vanderley Benedito de Oliveira Leite Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Nova Odessa, SP
  • José Narciso Sobrinho Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP
  • Vicente Paulo Martelo Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Coordenadoria de Assistência Técnica Integral, Campinas, SP

Keywords:

dry matter, total digestible nutrients intake, dry matter digestibility

Abstract

The effect of forage pressing and addition of ground corn ears on the ensiling of elephantgrass (Pennisetum purpureum Schum.) cv. Guaçu, cut a two ages, were evaluated in a randomized block design with three replicates, The treatments were arranged in a 2 x 2 x 2 factorial: two ages, two forage types (fresh and pressed) and two levels of ground corn ears (0 e 6%). After the uniformization cuts, on 01/28/1997 and 02/17/1997, the grass was fertilized with 80 kg of P2O5 and 100 kg of N and K2O/ha. The forage was cut on 04/18/1997 and the fresh and pressed forages, with or without ground corn ears, were ensiled in 200 liters vessels. The pressing was achieved by regulating the pressure at approximately 10 kg/cm2. Both the pressing and addition of ground corn ears increased the dry matter content of material prior to ensiling. All the silage presented good fermentation pattern, with absence or minimum amounts or butyric acid and amoniacal nitrogen. The pressing of the forage and the addition of ground corn ears improved the fermentation pattern, with absence or minimum amounts of butyric acid and amoniacal nitrogen. The pressing of the forage and the addition of ground corn ears improved the fermentation pattern and nutritive value of the silages.

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Published

2013-12-04

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Pressing of forage and adition of ground corn ears at the ensiling of elephantgrass. 2-Quality and nutritive value of the silage. (2013). Bulletin of Animal Husbandry, 55(1), 81-90. http://bia.iz.sp.gov.br/index.php/bia/article/view/941

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