添加玉米粉和乳酸菌制剂对燕麦与箭筈豌豆混播捆裹青贮发酵品质的影响  

Effects of addingcorn flour and lactic acid bacteria on fermentation qualityof balingsilage of oat and common vetch mixture

作　　者：琚泽亮 赵桂琴[1] 覃方锉 焦婷[1] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《草原与草坪》2016年第2期59-65,共7页Grassland and Turf

基　　金：农业行业科研专项(201003023);国家燕麦荞麦产业体系(CARS-08)资助

摘　　要：为探讨添加玉米粉、乳酸菌制剂和玉米粉+乳酸菌制剂对燕麦与箭筈豌豆混播(6∶4)捆裹青贮发酵品质的影响,设置对照、玉米粉(CF)、Sila-Max 200(S)和玉米粉+Sila-Max 200(CF+S)4个处理,在燕麦乳熟期、箭筈豌豆开花期刈割,捆裹青贮后第40,80和120d开包取样,测定青贮料的发酵品质。结果表明:与对照相比,添加剂对燕麦与箭筈豌豆混播捆裹青贮品质影响非常显著。添加玉米粉显著提高了青贮料的水溶性碳水化合物含量,同时其氨态氮、乙酸、总挥发性脂肪酸含量在80d时为最高,较对照分别增加了5.72%,288.89%和91.49%。添加Sila-Max 200处理pH迅速下降,青贮80d后低至4.19,乳酸含量显著增加。复合添加效果最优,其pH在80d后较对照下降了9.96%,乳酸含量增加了219.61%,氨态氮含量显著下降;青贮120d后乳酸/乙酸为对照的2.5倍。综上所述,玉米粉和乳酸菌制剂组合添加能更好地改善燕麦与箭筈豌豆混合青贮的发酵品质。The aim of this study was to evaluate the effects of adding corn flour,lactic acid bacteria prepara-tion and their combinations on the fermentation qualities and residual water soluble carbohydrates of baling si-lage of mixed sowing oat and common vetch（6∶4）.The additives for silage included no additive（CK）,corn flour （CF）,Sila-Max 200（S）,corn flour＋Sila-Max 200 （CF＋S）,these silos were opened on 40,80 and 120 days af-ter ensiling and then the fermentation quality was analyzed.The results showed that the silage quality was sig-nificantly affected by the additives.Adding corn flour significantly increased WSC content,the NH 3-N,AA,total VFAs contents and pH value were the highest at 80d,these indexes increased 5.72%、288.89%、91.49% and 8. 21% respectively compared to that of CK.The silage quality with Sila-Max 200 was superior to corn flour.Its pH value was falling quickly and reduced to 4.1 9 at 80d and LA content significantly increased.Optimal per-formance was the combination treatment,its pH value decreased 14.32% than control at 80d,LA content in-creased 21 9.61%,NH 3-N content significantly decreased,and LA/AA value was still 2.5 times of the control after 120 d of ensiling.Based on the above results,the combination addition of corn flour and lactic acid bacteria preparation was better choice for improving the fermentation quality of mixed silages of oat and commonvetch in this experiment.

关 键 词：燕麦 箭筈豌豆 捆裹青贮 添加剂 

分 类 号：S816.7[农业科学—饲料科学]