云南省全株玉米青贮饲料生产现状及质量分析

为了更好地掌握云南省全株玉米青贮饲料的质量状况,采用抽样方法对云南省5个州市17个粮改饲试点县的全株玉米青贮饲料进行质量抽查,通过感官评价及实验室分析方法,对全株玉米青贮饲料进行了质量综合评定。结果表明,云南省全株玉米青贮饲料发酵品质状况良好,通过对青贮饲料发酵品质综合评分,评价为优有31个样品(占总数79.49%),评价为良的7个样品(占总数17.95%),评价为差的有1个样品(占总数2.56%)。同时,通过此次抽查也可以看出云南省全株玉米青贮目前存在:全株玉米收获时间过早,青贮制作技术有待提高,青贮玉米品种选择有待进一步优化等问题。

Production Status and Quality Analysis of Whole-plant Corn Silage in Yunnan Province

In order to better grasp the quality status of the whole-plant corn silage in Yunnan Province,samples were collected from seventeen grain to forage pilots distributed in five prefectures and their quality was comprehensively assessed by using sensory evaluation and laboratory analysis methods.Generally,the tested whole-plant corn silage samples showed good fermentation quality.Thirty-one and seven samples were comprehensively evaluated as top-graded and well-graded,respectively,accounting for 79.49% and 17.95% of the total number of samples,respectively.There was only one sample considered as poorly-graded,accounting for 2.56%of the total number of samples.Meanwhile,some existing problems in whole-plant corn silage production in Yunnan Province are also observed,such as the harvest time of whole-plant corn is too early,the silage production technology needs to be improved,and the selection of silage corn varieties needs further optimization.