DIGESTIBILIDADE IN VITRO DE SILAGEM DE BAGAÇO DE SORGO SACARINO

• DOI: 10.22533/at.ed.85219260427

• Palavras-chave: Nutrição animal. Plantas forrageiras. Resíduo vegetal. Sorghum bicolor L.

• Keywords: Animal nutrition. Forage plants. Plant residue. Sorghum bicolor L.

• Abstract:

   The objective was to evaluate different genotypes of sweet sorghum and

  the digestive aspects of their bagasse in the form of preserved food, related to in vitro

  dry matter digestibility (DIGIV). The experiment was conducted at the UTFPR campus

  in Dois Vizinhos-PR. The first trial was established on October 2, 2012 using ADV

  2010, Hunnigreen, Sugargraze, Volumax, BR 505, 503, 501 genotypes and the second

  in 2013 on November 27 evaluating materials ADV 2010, Sugargraze, Hunnigreen,

  EX 5110, BR 506, 508, 509 and 511. The in vitro dry matter digestibility was evaluated

  by the method of Baumgardt et al (1962), adapted by Tilley & Terry (1963). The

  experimental design was a randomized block design with three replicates, analyzing

  the results using ANOVA and comparing the means by the Duncan test with a 5%

  probability of error. In vitro digestibility was in general average of 36.9% and 62.4%

  for bagasse silage of the materials grown in the 2012/2013 and 2013/2014 harvests,

  respectively. In general, the higher agronomic yield, either by genetic or environmental

  factors, provided fewer digestibilities. Higher agronomic yield of sweet sorghum is

  responsible for lower digestibility of bagasse silage, digestibility which is influenced by

  environmental and genetic factors. Sweet sorghum bagasse silage is viable for animal

  feed and as a way of reducing environmental impacts

• Número de páginas: 15