Rising global meat consumption and ongoing human population growth are placing international meat production systems under growing pressure to maximize efficiency and animal productivity. Meeting these global production demands will require effective prevention and mitigation of animal diseases, which currently impose heavy burdens on agricultural productivity and create direct economic costs through the culling of affected livestock.

Historically, antimicrobials have served as the primary defense against animal disease in livestock systems worldwide. However, the escalating global threat of drug-resistant microbes is now driving regulatory initiatives to restrict antimicrobial usage across animal production, spurring fresh urgency in developing viable alternatives capable of preventing and treating disease without driving resistance.

To address these mounting production and regulatory pressures, the STAR IDAZ International Research Consortium conducted several expert workshops tasked with establishing structured roadmaps for ongoing research and outstanding questions surrounding antimicrobial alternatives. A key roadmap resulting from these expert workshops focuses directly on microbiota optimization as a pathway for animal health management.

The field of microbiota optimization centers on understanding and modulating the complex microbial communities that naturally colonize host animals. Scientists in this domain investigate the direct effects these resident microbes exert on fundamental animal development, immune system function, and overall agricultural productivity.

Recent scientific studies have begun clarifying the intricate web of biological interactions linking host animals with their resident microbiota. Researchers are examining distinct biological avenues by which these internal microbial ecosystems can be targeted and altered to strengthen host health and boost systemic animal productivity.

The newly outlined expert roadmap and the European regulatory framework provide a structured lens to evaluate emerging microbiota optimizers under active development. These interventions encompass diverse candidate classes, including specialized dietary additives and probiotics designed to promote animal disease resistance and support long-term food production stability.

Subject of Research: Microbiota optimization roadmap as an alternative to antimicrobials in livestock

Article Title: Microbiota optimisation to promote health and fight disease in animals – a roadmap

Article References: Ackerman, D. S., Morrow, A., Tun, H. M., Abbott, D. W., Wigley, P., & Barrow, P. (2026). Microbiota optimisation to promote health and fight disease in animals – a roadmap. BMC Veterinary Research. https://doi.org/10.1186/s12917-026-06090-7

Image Credits: AI Generated

DOI: 10.1186/s12917-026-06090-7

Keywords: microbiota optimization, antimicrobial alternatives, STAR IDAZ, animal disease prevention, livestock productivity, veterinary research, probiotics, dietary additives, drug-resistant microbes, host-microbe interactions, animal immunity, meat production, European regulatory framework, microbial communities, veterinary medicine, animal health