Study of the influence of high levels of sulfate on the rumen microbial synthesis of thiamin in a semi-continuous fermentor (Rusitec) L. Alves de Oliveira, S. Komisarczuk-Bony, A. Durix and C. Jean-BlainAnn. Zootech., 44 Suppl. 1 (1995) 146DOI: https://doi.org/10.1051/animres:199505114