Pre- & Probiotics

> Pre- & Probiotics

How can the composition of the population, the intestinal flora, be controlled in the desired direction? The aim is to promote the intestinal inhabitants who produce lactic acid. Today, so-called probiotics are partly used with the intention of displacing pathogenic microbes and putrefactive bacteria in the intestine, or the prebiotics non-digestible (feed) ingredient which selectively promotes the growth and/or activity of potentially health-promoting intestinal bacteria. Numerous studies prove a positive influence of fed prebiotics and probiotics on the performance, feed intake and the possibility of replacing antibiotics in animals. Due to the strong differences in the efficacy of the different live yeast strains, a verifiable mode of action must be considered when selecting a product.

In ruminant nutrition, a nutritionally positive effect of yeasts on the rumen flora is discussed, with a strain of Saccharomyces cervisiae being particularly important. However, the question is often asked whether there are advantages to using live yeasts instead of dead forms. The result of an experiment at INRA shows that the use of the live yeast LEVUCELL SC had a significantly reduced effect on lactate production and consequently raised the pH value, while the supplementation of the killed variant remained insignificant. The use of live yeasts in ruminant feeding leads to a stabilisation of the rumen pH value by stimulating the fermentation processes. Improved protein synthesis due to the increase in rumen microbes leads to higher rates of realizable energy, controlled digestion and thus to increased performance. The increase in performance is due both to the increased cellulolytic activity in the rumen and to better animal health.

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