6个商品添加剂对两个刈割茬次紫花苜蓿裹包 青贮品质的影响

Grassland and Turf(2017)

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Abstract
试验采用完全随机区组试验设计,以2个刈割茬次的甘农3号(Gannong No.3)紫花苜蓿为原料,分别添加青贮添加剂露保美NC、宜生贮宝、亚芯、乳酸菌发酵剂YM3和YM7、河北沧州乳酸菌进行裹包青贮,以不加添加剂为对照,45d后进行青贮指标测定、数据分析和灰色关联度分析,以研究添加剂对不同刈割茬次紫花苜蓿裹包青贮发酵品质的影响.结果表明:6种添加剂均能改善紫花苜蓿裹包青贮品质,且添加剂处理组优于对照组,其中,亚芯处理组pH最低,乳酸含量多,无丁酸(BA)生成,氨态氮含量最少,可溶性碳水化合物(WSC)消耗最低,发酵品质最好.且第2茬刈割的青贮品质优于第1茬.
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Key words
alfalfa,silage additive,cutting time,package silage,nutrient
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