Influence of Lactobacillus buchneri as silage additive and forage: concentrate ratio on the growth performance, fatty acid profile in longissimus muscle, and meat quality of beef cattle

Autor(es)

Rabelo, C. H. S. ; Basso, F. C. ; McAllister, T. A. ; Lage, J. F. ; Goncalves, G. S. ; Lara, E. C. ; Oliveira, A. A. ; Berchielli, T. T. ; Reis, R. A.

• Tipo de documento: Artigo Científico
• Fonte: CANADIAN JOURNAL OF ANIMAL SCIENCE; v. 96, n. 4, p. 550-562, DEC 2016.
• Citações Web of Science: 6

Resumo

Our objective was to investigate Lactobacillus buchneri as a silage additive and the forage: concentrate (F:C) ratio on growth performance and meat quality of finishing beef cattle. The trial was a 2 (corn silage untreated or inoculated with L. buchneri) x 2 (two F: C ratios, 60: 40 or 40: 60) factorial. Bulls fed a 40: 60 F: C diet containing inoculated silage had greater dry matter (DM) intake (P < 0.01) and average daily gain (P = 0.029) compared with other treatments. DM (P = 0.02) and neutral detergent digestibility (P < 0.01) were depressed by inoculation of corn silage with L. buchneri. Thiobarbituric acid concentration in meat increased (P < 0.01) by 15% in bulls fed the 60: 40 F: C diet compared with the 40: 60 F: C diet. Inoculation of silage increased (P = 0.02) the ratio of unsaturated fatty acids to saturated fatty acids. Compared with the 60: 40 F:C diet, the concentrations of polyunsaturated fatty acids (P = 0.03) and omega-6 fatty acids (P = 0.02) increased in longissimus muscle by 23% and 26%, respectively, in bulls fed the 40:60 F:C diet. Inoculation of corn silage with L. buchneri inconsistently improved the growth performance and meat traits of finishing bulls consuming diets differing in F:C. (AU)

• Processo FAPESP: 11/04547-9 - Qualidade de silagem de milho inoculada com Lactobacillus buchneri e seu efeito sobre o desempenho, características nutricionais e carcaça de novilhos Nelore
• Beneficiário: Carlos Henrique Silveira Rabelo
• Linha de fomento: Bolsas no Brasil - Mestrado
• Processo FAPESP: 12/00412-4 - Qualidade de silagem de milho inoculada
• Beneficiário: Ricardo Andrade Reis
• Linha de fomento: Auxílio à Pesquisa - Regular