Changes in the microbial population of a rumen-simulating fermenter in response to yeast culture

C.J. Newbold, F.M. McIntosh, R.J. Wallace

Research output: Contribution to journalArticle

41 Citations (Scopus)

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. Key words: Yeast culture, probiotics, rumen bacteria, Rusitec
Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalCanadian Journal of Animal Science
Volume78
Issue number2
DOIs
Publication statusPrint publication - 1998
Externally publishedYes

Bibliographical note

Cited By :38

Export Date: 18 May 2019

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