Effect of Siloguard additives on the quality of Medicago sativa silages in silage silo

The experimental site was located in Dahe Experiment Station of Hebei Academy of Agriculture and Forestry Sciences. There were four kinds of treatments, using second crop Medicago sativa as experimental material and Siloguard as additives in silage silo. The experiment was done to study the effect of additives (Siloguard) on the fermentation quality of M.sativa in silage silo, and to confirm the optimum concentration of additives and feasibility of M.sativa storage in silage silo, as well as provided scientific basis for largescale practice. The conclusion showed that: there were effects of additives on sense of silage, lowering pH, increasing lactic acid content, increasing protein content, and reducing the contents of various fibre. However, different additive concentrations could also lead to different results of the storage. While, the optimum result was saw when the concentration of Siloguard was 0.1%. The WSC content of silage increased notablely after adding additives, and the quality of the silage was improved remarkably. The comprehensive analysis suggested that stored in silage silo and Siloguard additives were able to improve the quality of the silage, and 0.1% was recommended to the production.