1. Official Methods of Analysis;A.O.A.C.,1980
2. Laboratory methods of evaluating feeding value;Barnes,1973
3. Effect of inoculum donor, inoculum volume and fermentation time on IVDMD of five hays;Coelho;Am. Soc. Anim. Sci. Abstr. So. Sec.,1982
4. Near infrared reflectance spectroscopy for quality analysis of sandhills meadow forage;Duncan;J. Anim. Sci.,1987
5. Forage Fiber Analysis (Apparatus, Reagents, Procedures and some Applications);Goering,1970