Some effects of glucose and ammonia on protein synthesis by rumen bacteria
| Autor: | W. T. Al-jumaily, D. R. Caldwell |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
animal structures
biology Physiology Plant Science General Medicine biology.organism_classification Applied Microbiology and Biotechnology Biochemistry Microbiology Ammonia chemistry.chemical_compound Rumen Nutrient chemistry L-Glucose Ruminant Selenomonas ruminantium Anaerobic bacteria Bacteria Food Science Biotechnology |
| Zdroj: | MIRCEN Journal of Applied Microbiology and Biotechnology. 2:389-398 |
| ISSN: | 1573-0972 0265-0762 |
| Popis: | Four species of ruminal anaerobic bacteria:Bacteroides ruminicola Succinivibrio dexrinosolvesn, Selenomonas ruminantium, andStreptococcus bovis, were used in growth experiments to study the effects of ammonia-nitrogen concentration, at several levels of fermentable energy, on nutrient utilization and protein synthesis. The optimal available ammonia concentration for use without wastage by most of the organisms was 5.4 mmol/l, butBacteroides ruminicola used as much as 27 mmol/l ammonia. All the organisms used 27 mmol/l glucose completely. Differences were found among the organisms in the optimal available glucose and ammonia concentrations associated with maximal total protein formation and maximal protein formation per unit of glucose or ammonia used during growth. The glucose concentration associated with most efficient conversion of glucose to protein (5.4 mmol/l) byBacteroides ruminicola andSuccinivibrio dextrinosolvens was five-fold less than that associated with most efficient protein formation per unit of glucose used byStreptococcus bovis andSelenomonas ruminantium. Under nutritional conditions associated with ruminant productivity, it is likely that, for both microbe and animal, substantial nutrient waste occurs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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