Professor Sharon Huws covers the first of the Animal Nutrition series, with the collaboration of the British Society of Animal Science (BSAS) on the topic ‘Manipulating the rumen microbiome’. The rumen is a complex ecosystem composed of anaerobic bacteria, protozoa, fungi, methanogenic archaea, and phages, which interact closely to break down plant material and providing metabolic energy to the host and, in the case of archaea, producing methane. Consequently, ruminants produce meat and milk, which are rich in high-quality protein, vitamins, and minerals, and therefore contribute to food security. As the world population is predicted to reach approximately 9.7 billion by 2050, an increase in ruminant production to satisfy global protein demand is necessary, despite limited land availability, and whilst ensuring environmental impact is minimized. Although challenging, these goals can be met, but depend on our understanding of the rumen microbiome. Attempts to manipulate the rumen microbiome to benefit global agricultural challenges have been ongoing for decades with limited success, mostly due to the lack of a detailed understanding of this microbiome and our limited ability to culture most of these microbes outside the rumen. The potential to manipulate the rumen microbiome and meet global livestock challenges through animal breeding and introduction of dietary interventions during early life have recently emerged as promising new technologies. Our inability to phenotype ruminants in a high-throughput manner has also hampered progress, although the recent increase in “omic” data may allow further development of mathematical models and rumen microbial gene biomarkers as proxies. Advances in computational tools, high-throughput sequencing technologies and cultivation-independent “omics” approaches continue to revolutionise our understanding of the rumen microbiome. This will ultimately provide the knowledge framework needed to solve current and future ruminant livestock challenges.

Professor Sharon Huws's key research interests lie in understanding the role that rumen microbes play in ruminant food security. Her research is strategically focused on understanding the functionality of rumen microbes—with the aim of addressing food security and human health—coupled with industrial biotechnology related to the rumen microbiome. Professor Huws also has a general interest in microbiomes and occasionally focuses attention on poultry, pig and even human lung microbiomes.
Professor Huws is in receipt of a Brazil Special Visiting Researcher Award (2014 - present) and coordinates the global 'Rumen Microbial Genomics' network, is an editor for the journals Microbiome and Frontiers in Microbiology, as well as a ruminant nutrition section editor for the journal Animal.
