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In this paper, several international popular forge quality evaluation indices such as Relative Feed Value(RFV),Relative Forage Quality(RFQ),Milk2000,as well as Forage Grading Index(GI)and Retention Time Index of fibrous materials in the rumen(RT-INDEX)were introduced, the differences and relationships of among RFV?RFQ?Milk2000 and GI were also revealed.

介绍了国际流行的粗饲料品质评定指数相对值 (RFV)、粗饲料相对质量 (RFQ)、产奶二千 (Milk2 0 0 0 )以及我国学者提出的粗饲料分级指数 (GI)与预测粗饲料采食量的粗饲料纤维物质瘤胃滞留系数 (RT IN DEX) ;揭示了RFV ,RFQ ,Milk2 0 0 0与GI四者间的联系与区别 ;详细地介绍了预测不同粗饲料RFQ参数的模型 ,并就RFQ取代RFV的可行性进行了分析。