QUALITY AND HYGIENIC CONDITIONS OF WHITE LUPIN SILAGE, AFFECTED BY FORAGE STAGE OF GROWTH AND USE OF SILAGE ADDITIVES

QUALITY AND HYGIENIC CONDITIONS OF WHITE LUPIN SILAGE, AFFECTED BY FORAGE STAGE OF GROWTH AND USE OF SILAGE ADDITIVES

A two-factor field experiment with white lupin cv. Butan was carried out. The first factor was the green forage harvest date (the flat pod stage – Cut 1 and the stage of green ripe seeds – Cut 2), while the second one – application of silage additives: biological (strains of lactic acid bacteria) and chemical (a mixture of organic acids), and the control treatment (without additives). In Cut 2 higher fresh matter (FM) and dry matter (DM) yields were obtained. Silage inoculated with the biological additive contained a significantly greater count of lactic acid bacteria. Both additives reduced counts the Clostridium bacteria, yeasts and mould fungi. The silage with the chemical additive had a three-fold higher content of water-soluble carbohydrates (WSC), while the biological additive increased lactic acid (LA) levels. White lupin can be used as a silage raw material, but plants before ensiling should be partially wilted and silage additives should be applied

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