Effect of adding lactic acid bacteria and glucose on alfalfa silage quality

Alfalfa in initial flowering stage was harvested and wilted for 0,8,or 32 hours ［with dry matter (DM) content of 27.15%,38.45% and 50.87%,respectively］,and ensiled with lactic acid bacteria+glucose at rates of 0,10⁵cfu/g+20g/kg, 10⁶cfu/g+15g/kg and 10⁷cfu/g+10g/kg. Results from the experiment indicate that alfalfa with lower water content (DM 50.87%) without additives has lower ammonia nitrogen content,conserves more DM,and produces more lactic acid.The languished alfalfa (DM 38.45%) ensiled with lactic acid bacteria+glucose has the best quality.The silage quality and integrated evaluation of alfalfa (DM 27.15%) with 10⁶cfu/g lactic acid bacteria and 15g/kg glucose is better than those of alfalfa with the other treatments.The silage quality of alfalfa (DM content,38.45% and 50.87% respectively) with 10⁷cfu/g lactic acid bacteria and 10g/kg glucose are simply the best.