EVALUATION OF NANOCOBALT PARTICLES ADDITION IN RUMINANT RATIONS BY IN VITRO GAS PRODUCTION

Autor: Etab R.I. Abd El-Galil, N. E.Y. El-Bordeny
Rok vydání: 2018
Předmět:
Zdroj: Egyptian Journal of Nutrition and Feeds. 21:91-102
ISSN: 1110-6360
DOI: 10.21608/ejnf.2018.75412
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
Databáze: OpenAIRE