%0 Conference Proceedings %T Effect of Trivalent Chromium on Microbial Fermentation Rate of Barley and Straw Using In Vitro Gas Production %A ُS.E.Ghiasi %A Valizadeh, Reza %A Naserian, Abbas Ali %A Tahmasbi, Abdol Mansour %A B.Azimiyan %J The 14 th AAAP Animal Science Congress %D 2010