Effects of herbal plant supplementation on rumen fermentation profiles and protozoan population in vitro oleh Antonius Antonius, Roni Pazla, Ezi Masdia Putri, Muhammad Ichsan Alma’i, Erika Budiarti Laconi, Didid Diapari, Anuraga Jayanegara, Laily Rinda Ardani, Leni Marlina, Riris Delima Purba, Ruslan Abdul Gopar, Windu Negara, Sharli Asmairicen, Putut Suryo Negoro