title: Effect of the yeast and bacteria biomass on the microbiota in the rumen.
abstract: This study aims at obtaining a probiotic product based on viable biomass from 6 yeast strains and 2 strains of lactic bacteria used for nutrition of animals. The strains are subjected to some resistance tests, at temperature, pH, pepsin, pancreatin and biliary salts so as to make obvious their viability. Tests were done by comparison to the witness strain and respectively a protective solution based on mucin and casein. Based on the resulted viabilities 2 products are formulated. Their effect is tested by inoculating fresh rumen content and supervising the microbic balance for a period of 12 days. After the final tests, it resulted that the product Fpl (20% Saccharomyces cerevisiae 1-29, 10% Kluyveromyces marxianus R-CS, 20% Issatchenkia orientalis R-BC, 30% Lactobacillus paracasei CMGB16, 20% Enterococcus faecium GM8) was chosen because anaerobic strains were preponderant as a consequence of the tests performed with rumen.
authors.affiliation: Faculty of Biotechnology, University of Agronomic Sciences and Veterinary Medicine, Bd. Mar ti No. 59, District 1, Bucharest, Romania.
authors.forename: E
authors.initials: E
authors.lastname: Vamanu
authors.forename: A
authors.initials: A
authors.lastname: Vamanu
authors.forename: O
authors.initials: O
authors.lastname: Popa
authors.forename: Tatiana
authors.initials: T
authors.lastname: Vassu
authors.forename: Raluca
authors.initials: R
authors.lastname: Ghindea
authors.forename: Diana
authors.initials: D
authors.lastname: Pelinescu
authors.forename: Sultana
authors.initials: S
authors.lastname: Nita
authors.forename: Narcisa
authors.initials: N
authors.lastname: Babeanu
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001419:Bacteria / Q000254:growth & development; D018533:Biomass; D002417:Cattle; D016984:Enterococcus faecium / Q000254:growth & development; D007716:Kluyveromyces / Q000254:growth & development; D007778:Lactobacillus / Q000254:growth & development; D050296:Microbial Viability; D019936:Probiotics; D012417:Rumen / Q000382:microbiology*; D012441:Saccharomyces cerevisiae / Q000254:growth & development; D004718:Saccharomycetales / Q000254:growth & development; D015003:Yeasts / Q000254:growth & development