Popis: |
The objectives of this paper are to evaluate the addition of nanocobalt on growth of cellulolytic bacteria, degradability of dry matter, cellulose and hemicellulose regarding In vitro gas production. The different levels of nanocobalt as addition element on fermentation kinetics were 0, 25,50,75,100 and 125 % from requirements of animal in ration as dry matter base. Cellulolytic bacteria had been isolated :Cellulomonas cellulasea, Acetobacter xylinum, Thermonospora fusca, Ruminococcus albus , Bacillus sp., Clostridium cellulovorans and Selenomonas ruminantium. Standard ration (1:1 concentrate :clover hay ) was incubated for 48 hours. The results indicated that the values of DMD , Hemi.D and Cellul.D, which nanocobalt addition were higher when levels were 50 and 75% compared control. Total cellulolytic bacteria counts in rumen content were higher (P |