Evaluation of a Colombian oregano oil (Lippia origanoides Kunth) and a novel yeast product from Pichia guilliermondii, alone or in combination, on rumen fermentation, methanogenesis and the microbiome in the rumen simulation technique

Eva Ramos-Morales^*, Emily Bolton, Laura Lyons, David Carreño, Eleanor Jones, Olga Mayorga, Claudia Ariza-Nieto, Charles James Newbold

^*Corresponding author for this work