Title of article :
Effects of Streptococcus bovis Isolated from Bovine Rumen on the Fermentation Characteristics and Nutritive Value of Tanzania Grass Silage
Author/Authors :
de Moura Zanine, Anderson Department of Animal Science - Federal University of Maranhao - 65500-000 Chapadinha - MA - Brazil , Alencar Bonelli, Emerson Department of Animal Science - Federal University of Mato Grosso - 78735-901 Rondonopolis - MT - Brazil , Lima de Souza, Alexandre Department of Animal Science - Federal University of Mato Grosso - 78735-901 Rondonopolis - MT - Brazil , de Jesus Ferreira, Daniele Department of Animal Science - Federal University of Maranhao - 65500-000 Chapadinha - MA - Brazil , Mauro Santos, Edson Department of Animal Science - Federal University of Para´ıba - 58051-900 Areia - PB - Brazil , Divino Ribeiro, Marinaldo Department of Animal Science - Federal University of Goias - 74690-900 Goi ´ ania - GO - Brazil , Valério Geron, Luiz Juliano Department of Animal Science - State University of Mato Grosso - 78250-000 Pontes e Lacerda - MT - Brazil , Araujo Pinho, Ricardo Martins Department of Animal Science - Federal University of Para´ıba - 58051-900 Areia - PB - Brazil
Abstract :
This study aimed to evaluate the effects of Streptococcus bovis on the fermentation characteristics and nutritive value of Tanzania grass silage. Tanzania grass was chopped and left untreated (U) or treated with Streptococcus bovisJB1 at 1 × 106 colony-forming units per gram (cfu/g) of fresh forage or Streptococcus bovis HC5 at 1 × 106 cfu/g of fresh forage and packed into sixtuplicate laboratory
silos. The largest number of enterobacteria, molds and yeast (M&Y) occurred in untreated silages and the smallest populations of enterobacteria and M&Y and the largest numbers of lactic acid bacteria (LAB), at 9.81 and 9.87 log cfu/g, were observed in Streptococcus bovis JB1 and HC5, respectively (𝑃 < 0.05). Silages treated with JB1 and HC5 had lower (𝑃 < 0.05) silage pHs and
concentrations of ammoniacal nitrogen (NH3-N) than untreated silages.The application of Streptococcus bovisJB1 and HC5 resulted
in fewer losses through gases and effluents (𝑃 < 0.05), which resulted in greater dry matter recovery (DMR) and crude protein recovery (CPR) (𝑃 < 0.05). Streptococcus bovis JB1 and HC5 improved the fermentative profile and increased the concentration of crude protein and DMR and CPR in Tanzania grass silage.
Keywords :
Streptococcus bovis Isolated , Bovine Rumen , Fermentation Characteristics , Nutritive Value , Tanzania Grass Silage
Journal title :
The Scientific World Journal
