Phytogenic products, used as alternatives to antibiotic growth promoters, modify the intestinal microbiota derived from a range of production systems: an in vitro model.

Phytogenic products, used as alternatives to antibiotic growth promoters, modify the intestinal microbiota derived from a range of production systems: an in vitro model. Appl Microbiol Biotechnol. 2020 Nov 12;: Authors: Bajagai YS, Alsemgeest J, Moore RJ, Van TTH, Stanley D Abstract The removal of antibiotics from the feeds used in the livestock industry has resulted in the use of a wide range of alternative antimicrobial products that aim to deliver the productivity and health benefits that have traditionally been associated with antibiotics. Amongst the most popular alternatives are phytogenic product-based extracts from herbs and spices with known antimicrobial properties. Despite embracing such alternatives, the industry is still largely unaware of modes of action, their overall effects on animal health, and interactions with other feed additives such as probiotics. To address some of these issues, three phytogenic products were selected and their interactions with caecal microbiota of layers, grown under six different production systems, were investigated in vitro. Caecal microbiotas were grown with and without phytogenic products, and the changes in microbiota composition were monitored by sequencing of 16S rRNA gene amplicons. Phytogenic products and production system both significantly influenced microbiota composition. The three phytogenic products all altered the relative abundance of species within the Lactobacillus genus,...
Source: Applied Microbiology and Biotechnology - Category: Microbiology Authors: Tags: Appl Microbiol Biotechnol Source Type: research