Arquivo Brasileiro de Medicina Veterinária e Zootecnia (Dec 2009)

Avaliação pela técnica semiautomática de produção de gases das silagens de quatro genótipos de girassol (Helianthus annuus) (Rumbosol 91, Victoria 627, Victoria 807 e Mycogen 93338) Evaluation of four sunflower (Helianthus annuus) genotypes (Rumbosol 91, Victoria 627, Victoria 807, and Mycogen 93338) silages by semi-automated in vitro gas production technique

  • D.G. Jayme,
  • L.C. Gonçalves,
  • R.M. Maurício,
  • J.A.S. Rodrigues,
  • N.M. Rodriguez,
  • A.L.C.C. Borges,
  • I. Borges,
  • E.O.S. Saliba,
  • D.A.A. Pires,
  • R. Guimarães Júnior,
  • C.G. Jayme,
  • L.G.R. Pereira

DOI
https://doi.org/10.1590/S0102-09352009000600021
Journal volume & issue
Vol. 61, no. 6
pp. 1403 – 1410

Abstract

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Foram avaliadas as silagens de quatro genótipos de girassol (Helianthus annuus) (Rumbosol 91, Victoria 627, Victoria 807 e Mycogen 93338), pela técnica semiautomática de produção de gases. O delineamento experimental utilizado foi o de blocos ao acaso, em esquema de parcelas subdivididas, sendo as médias comparadas pelo teste SNK (pFour silages from distinct sunflower (Helianthus annuus) genotypes (Rumbosol 91, Victoria 627, 807 Victoria, and Mycogen 93338) were evaluated by semi-automated in vitro gas production technique in a completely random block design in a split plot scheme. The means were compared by the SNK test (P0.05). Maximum potential gas production ranged from 91.67 for Victoria 807 to 125.46mL/g of DM Rumbosol 91. Genotype Rumbosol 91 showed the highest DMD for fermentation rate of 2 (46.39%) and 5% (43.26%), and the highest values for fermentation rate of 8% was observed for Victoria 627 genotype. Silages from Rumbosol 91 and Victoria 627 genotypes showed outstanding potential of gases production and rate of gases production.

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