反刍家畜粗饲料品质评定的指标及其应用比较

Quality Evaluation Parameters of Ruminant Coarse Fodder and Their Application Comparison

本文结合笔者的研究结果就评定粗饲料品质的单项指标粗蛋白、中性洗涤纤维、消化率与动物的粗饲料干物质随意采食量以及综合指标粗饲料相对值(RFV)、粗饲料分级指数(GI)在粗饲料品质评定上的应用进行了比较,指出:上述各单项指标并不能客观地反映粗饲料的品质,应使用综合指标。由于GI考虑了粗饲料中的能氮互作,对粗饲料的分级比RFV更精确。

The quality of forages varies considerably, especially review compared single indices （chemical consltuents, IVDMD, forage grading on the data of exoeriment, and concluded that single indices were hard to evaluate forage quality completely, integrative index should be used, and GI was more accurate than RFV in forage grading, because the interaction between energy and nitrogen was considered in GI, but further investigation is necessary.