INFLUENCE OF SOME BIOLOGICALLY ACTIVE SUBSTANCES ON
GAS PRODUCTION, DIGESTIBILITY AND METABOLIC ENERGY
IN DIFFERENT FEEDS
Stayka Laleva, Daniela Yordanova, Georgi Kalaydzhiev*,
Vladimir Karabashev, Nikolay Ivanov, Teodora Angelova, Vasil Vasilev
Keywords: Gas production, Digestibility, Metabolic energy, Herbs, Essential oils.