Effects of Different Additions of Lactic Acid Bacteria on the Quality of Agropyron elongatum Silage
This experiment aims to explore the impact of different additions of lactic acid bacteria additives on the nutritional composition of Agropyron elonggatum silage feed.The experiment uses Agropyron elonggatum in the early stage of earing as the raw material,and the raw material water content is fresh storage(water content 70％)and air drying(water content 50％).The treatment of lactic acid bacteria additives is set to 0.001g/kg,0.005g/kg,0.01g/kg,and lactic acid-free additives are controlled CK(CK1:70％,CK2:50％),and each treatment is set with 3 repetitions.After 45 days of fermentation,the sensory evaluation,coarse ash,crude fat and crude protein were compared and analysed.Research shows that when elonggatum is freshly storage,compared with CK1,the crude ash content after adding lactic acid bacteria additives is significantly reduced(P＜0.05);the crude fat content decreases first and then rises,and the crude fat content of 0.01g/kg is significantly highest(P＜0.05);4 treatments(CK1,There is no significant difference in crude protein(P＞0.05)between 0.001g/kg,0.005g/kg and 0.01g/kg),but the crude protein content of 0.001g/kg lactic acid bacteria is the highest.When air-dried Agropyron elonggatum silage,compared with CK2,there is no significant change in the crude ash content after adding lactic acid bacteria additives(P＞0.05),and the CK2 crude ash content is the highest;the crude fat shows a decline first and then rise,but the CK2 crude fat content is the highest,and the crude fat Significantly lowest(P＜0.05);crude protein decreases first and then rises,and the crude protein content of 0.01g/kg lactic acid bacteria is the highest.On the whole,the silage effect is better when the raw material water content is 50％,and the silage effect is best when adding 0.001g/kg lactic acid bacteria silage.
万方数据
维普
