Cieslak A, Zmora P, Matkowski A, Nawrot-Hadzik I, Pers-Kamczyc E, El-Sherbiny M, et al. TANNINS FROM SANGUISORBA OFFICINALIS AFFECT IN VITRO RUMEN METHANE PRODUCTION AND FERMENTATION. Journal of Animal and Plant Sciences. 2016;26(1):54-62.