添加剂Siloguard对全株玉米青贮饲料品质及有氧稳定性的影响  

Effects of Siloguard Additives on Quality and Aerobic Stability of Corn Silage

作　　者：郭艳萍[1] 邓波[1] 娜日苏[2] 玉柱[1] 顾雪莹[1] 朝克图 

机构地区：[1]中国农业大学草地研究所,北京100193 [2]内蒙古农业大学生态环境学院,呼和浩特010019 [3]呼伦贝尔市草原科学研究所,呼伦贝尔021008

出　　处：《吉林农业大学学报》2011年第4期424-428,共5页Journal of Jilin Agricultural University

基　　金："948"项目"国家牧草产业技术体系"(2010-C15);国家科技支撑计划项目(2006BAD16B08);北京市共建项目专项

摘　　要：以全株玉米为原料,分别添加0.05%、0.10%Siloguard,研究其对全株玉米青贮饲料品质的影响,并对有氧暴露0,1,3,5,7 d的全株玉米青贮饲料的有氧稳定性进行分析与测定。结果表明:与对照相比,添加Silo-guard对青贮饲料pH值无显著影响,显著降低中性洗涤纤维和氨态氮含量(P<0.05);与添加0.05%Siloguard相比,添加0.10%Siloguard显著提高青贮饲料的粗蛋白含量(P<0.05)。全株玉米青贮饲料有氧暴露7 d时青贮饲料pH值升高,乳酸、乙酸和丙酸含量下降。Whole-crop corn was ensiled with adding 0.05% and 0.10% Siloguard （a commercial addi- tive contains sodium sulfate, potassium sulfate, diastatic malt, glueose and propylene glycol） respectively to examine the influence of the additive on quality of the corn silage. In addition, this experiment was carried out to evaluate the aerobic stability of the corn silages which were exposed to air and sampled on 0, 1, 3, 5, 7 days of exposure. The results showed that siloguard had no significant effect on pH value and significantly decreased the NDF content（ P 〈 0.05） ; and 0.10 % siloguard significantly increased the CP content （ P 〈 0.05） in the ensiled forage compared to that in the 0.05 % siloguard ter 7 days of exposure to air, the pH value rose, while the lactic acid, acetic acid and treated silage. Afpropionic acid decreased.

关 键 词：全株玉米青贮饲料 Siloguard 青贮品质 有氧稳定性 

分 类 号：S816.53[农业科学—饲料科学]