Abstract
Yeast increased the total viable count of bacteria on a medium containing rumen fluid and soluble sugars by 38% (P <0.05) and the cellulolytic population increased by 49%, although the increase was not statistically significant (P > 0.05). Microscopic counts indicated a 25% increase in total bacteria (P <0.05). Bacterial counts with mannitol as sole energy source also increased (P <0.05), indicating an increased Selenomonas population; that was not in itself sufficient to account for the increase in the total bacterial count. The protozoal population was significantly lower in yeast supplemented vessels (P <0.001), which may account partly for the increased bacterial numbers.
Original language | English |
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Pages (from-to) | 241-244 |
Number of pages | 4 |
Journal | Canadian Journal of Animal Science |
Volume | 78 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jun 1998 |
Keywords
- rumen bacteria
- DIETS
- Rusitec
- PROTEIN
- probiotics
- yeast culture
- DIGESTION
- RUMINAL CHARACTERISTICS
- IN-VITRO
- STEERS
- SUPPLEMENT
- SACCHAROMYCES-CEREVISIAE
- DIGESTIBILITY
- METABOLISM
- Yeast culture
- Probiotics
- Rumen bacteria