%0 Journal Article %T ETUDES OF THE USA FODDER AND DIETS QUALITY EVALUATION SYSTEM IN RUSSIA %A Popov, V.V. %K forage, testing system, quality, neutral detergent fiber, acid detergent fiber, digestibility, nutritive value %J Adaptive Fodder Production %D 2021 %N 2021 %P 15 %I Federal Williams Research Center of Forage Production and Agroecology