Effects ofStreptococcus bovisIsolated from Bovine Rumen on the Fermentation Characteristics and Nutritive Value of Tanzania Grass Silage

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 bovis JB1 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 bovis JB1 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.

<b>Fermentative characteristics and nutritional value of elephant grass silage added with dehydrated banana peel

“…The higher dry matter recovery rate in the silages with banana peel was probably due to the lower occurrence of enterobacteria, which is justified by the higher dry matter content and the higher pH retention in the silages with banana peel (Zanine et al, 2016), associated to the fact that silages with banana peel have lower effluent production.…”

“…stands out due to its high dry matter production per cultivated area (Figueira, Neumann, Ueno, Galbeiro, & Bueno, 2016). However, when the grass presents adequate nutritive value for silage production, it also contains a higher moisture content, resulting in undesirable fermentation and thus it represents an obstacle to the use of elephant grass in the silage form (Zanine et al, 2016).…”

Administration of Streptococcus bovis isolated from sheep rumen digesta on rumen function and physiology as evaluated in a rumen simulation technique system

“…Previous research has been targeted towards the analysis of the administration of S. bovis on fermentation characteristics and nutritive value of Tanzania grass silage [8] and of the administration of wheat bran+rumen-isolated S. bovis on effective degradation of guinea pig silage [9]. The present study explores the effect of the administration of ruminal S. bovis on fermentation characteristics and microbial population in RUSITEC chambers fed with mixed cattle feed.…”

“…[6] for studying the dynamics of the bacterial community during challenge with Clostridium perfringens . Isolation of S. bovis has been reported from the rumen of dromedary camel, Rusa deer, and bovine rumen [7,8] with rumen fermentation and feed digestion studies [9]. In addition, Joachimsthal et al .…”

Dwarf Elephant Grass (Pennisetum purpureum cv. Mott) as Forage for Ruminant

“…Hasil serupa diperoleh pada silase rumput Tanzania (Panicum maximum cv. Tanzania) menggunakan bakteri Streptococcus bovis yang diisolasi dari rumen sapi menghasilkan meningkatkan protein kasar dari 5,51% menjadi 7,08% setelah fermentasi (Ferreira et al 2014) dan dari 9,13% menjadi 11,25% (Zanine et al 2016). Hasil yang lain dilaporkan oleh Naif et al (2016) pada silase rumput dengan taraf penambahan dedak padi dan jagung giling dengan taraf yang berbeda-beda.…”