家畜生态学报Issue(10)：30-35,6.
不同添加剂处理对苜蓿青贮品质的影响
Effect of Additives Treatment on Alfalfa Silage Quality
摘要
Abstract
T he study w ere conducted to investigate the fermentation and nutrient variance of alfalfa si‐lage after using 6 additives of formic acid ,calcium propionate ,sodium diacetate ,glucose ,cellulose and lactic acid bacteria inoculation .The results showed that ,formic acid improved the fermentation quality of alfalfa silage ,silage pH decreased significantly (P<0 .05);lactic acid content increased (P<0 .05);am‐monia nitrogen content decreased (P<0 .05) ,the crude protein ,total sugar and starch content increased in general .Compared with the control group ,ammonia nitrogen and acid content in calcium propionate group were significantly lower (P<0 .05) ,acetic acid and lactic acid content were significantly higher (P<0 .05) ,nutritional components of crude protein ,crude fiber and total sugar displayed insignificant vari‐ance;The addition of sodium diacetate had little effect on silage nutrition composition and silage quality while addition of cellulose enzyme significantly decreased the pH value(P<0 .05) ,increased ammonia ni‐trogen content (P<0 .05) ,slightly decreased acetic acid ,butyric acid and lactic acid content ,and evident‐ly improved the crude protein content in comparison with those in control group (P<0 .05);In the group added lactic acid bacteria ,ammonia nitrogen and lactic acid content were higher than that of the control group (P<0 .05) ,crude fiber is higher and the crude protein lowe;Adding glucose significantly decreased pH (P<0 .05) ,increased lactic acid content (P<0 .05) ,and lowered ammonia nitrogen and butyric acid content (P<0 .05) ,decreased the dry matter ,crude protein and total sugar content ,and slight increased the content of moisture ,crude fiber and starch .In conclusion ,among the 6 kinds of additives ,silage add‐ed formic acid revealed the best fermentation quality and least loss of protein .关键词
青贮添加剂/苜蓿/青贮品质Key words
silage additives/alfalfa/silage quality分类
农业科技引用本文复制引用
夏明,王育青,吴洪新,赵青山,段俊杰,张楠..不同添加剂处理对苜蓿青贮品质的影响[J].家畜生态学报,2014,(10):30-35,6.基金项目
国家“十二五”科技支撑课题（2012BAD13B07）；中央级公益性科研院所基本科研业务费专项 （）
