Alireza Bayat is a senior research scientist with the expertise on ruminant nutrition. He has been working on digestion and passage kinetics of fibre and currently, he is doing research on mitigating methane emissions through different nutritional strategies using different techniques including open circuit indirect respiratory chambers, GreenFeed or SF6 tracer technique as well as improving feed efficiency and energy metabolism of dairy cows. In addition, he is involved in research on improving milk fatty acid composition and the role of rumen microbiota in enteric and manure methane emissions.