Feed additives can affect in vitro fermentation characteristics of pig's faecal bacteria | Dodatki v prehrani prasicev lahko vplivajo na in vitro fermentacijo bakterij v fekalijah prasicev
2010
Rink, F., Stuttgart. (Germany). Univ. of Hohenheim. Inst. of Animal Nutrition. | Bauer, E. | Mosenthin, R.
In the post-antibiotic era there is growing interest in dietary tools aiming to manipulate the composition and metabolic activity of the gut microbiota, thereby improving gut health. Different strategies including the use of different kinds of feed additives are discussed to promote the intestinal ecosystem. In this in vitro study, the so called modified Hohenheimer Futterwerttest (HFT) was used to determine effects of different feed additives (betaine monohydrate, inulin, nucleotides, pectin, polyamines and organic acids) on fermentation activity of pigs` faecal microbial inoculum. After 24 h of in vitro fermentation, gas and ammonia production was measured, and short-chain fatty acids (SCFA) were analyzed. It can be concluded that pectin, polyamines, and especially nucleotides stimulate the production of fermentation end products (ammonia, individual and total SCFA). In particular, nucleotides enhanced the concentration of short-chain fatty acids, which might have a positive impact on animals` health in vivo.
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