<b>Ruminal degradability and microbial protein synthesis in cattle fed sorghum silages with tannin supplemented with concentrate or urea</b> - DOI: 10.4025/actascianimsci.v31i1.502

  • Simone Gisele de Oliveira UFPR
  • Telma Teresinha Berchielli UNESP
  • Márcio dos Santos Pedreira UESB
  • Juliano José de Resende Fernandes UFG
  • Alexandre Vaz Pires ESALQ/USP
DOI: https://doi.org/10.4025/actascianimsci.v31i1.502
Keywords: degradability, conserved forage, polyphenols

Abstract

This work aimed to determine ruminal parameters of dry mater (DM), neutral detergent fiber (NDF) and protein synthesis in the rumen of animals fed diets based on sorghum with different tannin levels. In situ degradation was evaluated by rumen incubation of level 1 (L1) and level 2 (L2) sorghum silages during 0, 6, 24, 48 and 96 hours. A duplicated 4 x 4 Latin Square was used. Potential degradability (PD) of DM was similar among silages, whereas the effective degradability (ED) decreased when the diets were supplemented with concentrate. Microbial nitrogen flux and microbial synthesis efficiency were not affected by roughage source. The synthesis efficiency, expressed in organic matter and crude protein digested in rumen, was higher in L1 tannin diets supplemented with concentrate. There was not relationship between the presence of tannins and the parameters of ruminal degradation.

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Author Biography

Simone Gisele de Oliveira, UFPR
Possui graduação em Zootecnia pela Universidade Federal de Lavras (1999) , mestrado em Ciência Animal e Pastagens pela Escola Superior de Agricultura Luiz de Queiroz (2002) e doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2005) . Tem experiência na área de Zootecnia , com ênfase em Nutrição e Alimentação Animal. Atuando principalmente nos seguintes temas: Bovinocultura de corte, Metano, Nutrição de ruminantes, Silagem de sorgo, Tanino Currículo Lattes
Published
2009-05-22
How to Cite
Oliveira, S. G. de, Berchielli, T. T., Pedreira, M. dos S., Fernandes, J. J. de R., & Pires, A. V. (2009). <b>Ruminal degradability and microbial protein synthesis in cattle fed sorghum silages with tannin supplemented with concentrate or urea</b&gt; - DOI: 10.4025/actascianimsci.v31i1.502. Acta Scientiarum. Animal Sciences, 31(1), 45-51. https://doi.org/10.4025/actascianimsci.v31i1.502
Issue
Vol 31 No 1 (2009)
Section
Ruminant Nutrition

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