全株大豆和玉米秸秆混合青贮试验  

Study on the mixed silage of whole plant soybean and corn stalk

作　　者：刘海燕[1] 王彦靖[1] 王秀飞[1] 刘鹏[1] LIU Haiyan;WANG Yanjing;WANG Xiufei;LIU Peng(Jilin Academy of Agricultural Sciences,Changchun,Jilin Province 130033,China)

机构地区：[1]吉林省农业科学院,吉林长春130033

出　　处：《中国饲料》2021年第5期124-126,130,共4页China Feed

基　　金：国家公益性行业(农业)科研专项经费(201503134);吉林省科技发展计划资助项目(20160204013SF);吉林省农科院自主项目。

摘　　要：为研究不同比例的全株大豆和玉米秸秆混合青贮对营养成分、发酵品质、能量值的影响,试验分为5个处理组,全株大豆与玉米秸秆的比例分别为1:0、2:1、1:1、1:2、0:1,每组3个重复。结果表明:与玉米秸秆相比,全株大豆与玉米秸秆1:1混合青贮的粗蛋白质、粗脂肪、赖氨酸、钙的含量以及干物质体外消化率分别提高了55.89%、192.10%、107.69%、250.00%、6.52%(P<0.05),粗灰分、中性洗涤纤维、酸性洗涤纤维、木质素、可溶性碳水化合物的含量显著降低(P<0.05),产奶净能、维持净能显著提高(P<0.05);与全株大豆相比,全株大豆与玉米秸秆1:1混合青贮的乳酸含量提高了34.65%(P<0.05),乙酸和丁酸含量及pH显著降低(P<0.05)。综上,建议全株大豆与玉米秸秆以1:1比例混合青贮。In order to investigate the effects of different ratio of whole plant soybean and corn stalk on nutrient composition,fermentation quality and energetic value,whole plant soybean and corn stalk were mixed and ensiled at the follwing ratios of 1∶0,2∶1,1∶1,1∶2,0∶1,with 3 replicates per group.The results showed that the mixed silage of whole plant soybean and corn stalk 1∶1 increased the contents of crude protein(CP),ether extract(EE),lysine(Lys),calcium(Ca),the in vitro digestibility of dry matter(IVDMD)by 55.89%,192.10%,107.69%,250.00%and 6.52%(P<0.05)respectively,and significantly reduced the contents of ash,neutral detergent fiber(NDF),acid detergent fiber(ADF),acid detergent ligin(ADL)and water-soluble carbohydrate(WSC)(P<0.05)compared with corn stalk.Compared wih the whole plant soybean,the mixed silage of whole plant soybean and corn stalk 1∶1 significantly increased content of lactic acid(LA)by 34.65%(P<0.05),net energy for lactation(NEL)and net energy for maintenance(NEM)(P<0.05),and significantly reduced the content of acetic acid(AA)and butyric acid(BA),and pH(P<0.05).It was suggested that the 1:1 mixed ratio of whole plant soybean and corn stalk was best for improving fermentation quality and nutrient composition.

关 键 词：全株大豆 玉米秸秆 营养成分 能量值 发酵品质 

分 类 号：S816.5[农业科学—饲料科学]