复合添加剂对甜玉米秸秆青贮品质的影响  

Effects of Compound Additives on Silage Quality of Sweet Corn Stalk

作　　者：姚美玲 丁得利 韩永胜 李伟 林秀蔚 朱元芳 王艳菲 李青莹 刘文 黄萌 姚爽 YAO Meiling;DING Deli;HAN Yongsheng;LI Wei;Lin Xiuwei;ZHU Yuanfang;WANG Yanfei;LI Qingying;LIU Wen;HUANG Meng;YAO Shuang(Animal Husbandry and Veterinary Branch,Heilongjiang Academy of Agricultural Sciences,Qiqihar Heilongjiang 161005,China)

机构地区：[1]黑龙江省农业科学院畜牧兽医分院,黑龙江齐齐哈尔161005

出　　处：《现代畜牧科技》2023年第12期73-75,共3页Modern Animal Husbandry Science & Technology

基　　金：财政部和农业农村部:国家肉牛牦牛产业技术体系(CARS-37);黑龙江省外向型农业产业技术协同创新体系;2022年畜牧兽医分院分院自拟课题(ZNKT-202208);齐齐哈尔市科技计划创新激励项目(CNYGG-2022009)。

摘　　要：该试验旨在研究复合添加剂对甜玉米秸秆青贮品质的影响,采用随机分组设计,共分4个处理组,分别为对照组(空白)、复合菌酶组、2%糖蜜和复合菌酶组、4%糖蜜和复合菌酶组,每组3个重复,在青贮第90天时测定甜玉米秸秆青贮微生物数量、营养成分、发酵品质。结果显示,复合添加剂(糖蜜和复合菌酶组合)均不同程度地改善鲜食玉米秸秆青贮的发酵品质和营养成分,有效提高粗蛋白、粗脂肪含量(P<0.05),降低中性洗涤纤维、酸性洗涤纤维含量(P<0.05),pH值显著降低(P<0.05),乳酸菌数量显著增加(P<0.05),乳酸、乙酸含量显著升高(P<0.05)。The experiment was designed to study the effects of compound additives on the quality of sweet corn straw silage.A randomized design was adopted,and four treatment groups were divided into control group(blank),complex bacterial enzyme group,2%molasses and complex bacterial enzyme group,and 4%molasses and complex bacterial enzyme group,with 3 replicates per group.Microbial quantity,nutrient composition and fermentation quality of sweet corn straw silage were measured on the 90th day of silage.The results show:the compound additives(molasses and complex bacterial enzyme combination)improved the fermentation quality and nutrient composition of fresh corn straw silage to varying degrees,effectively increased the contents of crude protein and crude fat(P<0.05),decreased the contents of neutral detergent fiber and acid detergent fiber(P<0.05),and significantly decreased the pH value(P<0.05).The number of lactic acid bacteria was significantly increased(P<0.05),and the contents of lactic acid and acetic acid were significantly increased(P<0.05).

关 键 词：复合添加剂 甜玉米秸秆 糖蜜 复合菌酶 青贮品质 

分 类 号：S816.53[农业科学—饲料科学]