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添加酶制剂对青贮玉米秸发酵品质和营养价值的影响 被引量:29

Effect of Enzyme Preparation on Fermentation Quality and Nutrient value of Corn Silages
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摘要 以玉米秸为原料,分别添加酶制剂0(C),800(1),1300(2),1800(3)g/tDM进行青贮。青贮结束对其发酵品质进行评定,并通过体外产气实验评价其营养价值。结果表明:各组青贮料发酵品质都较好。添加酶后降低了青贮料的中性洗涤纤维(NDF)的含量、NH3/TN比值和pH值,显著提高了乳酸(P<0.01)的含量。在营养价值的变化上,随着酶添加量的提高,各试验组的a,b,a+b,GP48等值均有上升趋势,加酶各组青贮料的有机物消化率显著高于对照组,以3组最高,比对照组高7.5%。因此,添加酶制剂可提高青贮玉米秸的发酵品质和营养价值,其效果随添加量的增加而增强。
出处 《中国畜牧杂志》 CAS 北大核心 2005年第7期18-20,共3页 Chinese Journal of Animal Science
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