青贮饲草加工利用及安全性分析研究

Silage Forage Processing and Security Analysis

本研究以大麦+光叶紫花苕、大麦+蚕豆、大麦+南苜蓿、大麦全株、玉米全株等五种青贮方式,综合评定青贮样品质量,三种混合青贮草产品品质均优于玉米全株青贮。玉米全株青贮品质中影响采食率和消化率的中性洗涤纤维、酸性洗涤纤维偏高,按照中华人民共和国国家标准GB/T 25882-2010青贮玉米品质分级标准,玉米全株青贮未达到评级标准。对青贮中铅、铜、锌、铁、锰重金属的成分测定分析,各类青贮重金属未超标,均在安全范围。

In this study,the quality of silage samples of barley + Guangye alfalfa,barley + broad bean,barley +Nan alfalfa,barley whole plant nad corn whole plant were evaluated comprehensively.The quality of the three mixed silage products was better than that of corn Silage.The neutral detergent fiber and acid detergent fiber which affect the feeding rate and digestibility of corn whole silage quality were high.According to the national standard GB/T 25882-2010 silage corn quality grading standard,the whole plant silage had not reached the rating standard.The composition determination andlysis of heavy metals for silage in cluding Cu、Pb、Zn、Fe and Mn showed,all kinds of heavy metals did not exceed the standard.