Effect of various roughage compositions on the fermentation quality of total mixed ration (TMR)

Seven kinds of total mixed ration (TMR) feeds were prepared with corn stalks (control), corn stalks + Astragalus adsurgens+ alfalfa, corn stalks + Bromus inermis + Elymus nutan, corn stalks + Ceratoides arborescens + Lespedeza hedysaroides, corn stalks + alfalfa + Elymus nutans, corn stalks + alfalfa + Ceratoides arborescens, or corn stalks + Bromus inermis + Ceratoides arborescens. In each cornbread，oil cake of flax seed，bran and Efficient multidimensional calcium phosphate bone meal were added into. The result indicates pH value and the content of NDF in all of roughage decreased significantly, content of CP increased, and content of Ca and P varied little. In conclusion, fermentation quality of TMR made from these various roughages has been improved.