Table 1. Chemical composition and dietary formulation of the experimental feeds

Items Treatments1)
Corn TMR Rice TMR
Ingredients (% DM)
 Corn flake 33.0 0
 Rice grain 0 33.0
 Commercial concentrate mix 36.0 36.0
 Alfalfa 7.0 7.0
 Timothy 23.5 23.5
 Vitamin and mineral mix2) 0.5 0.5
Chemical composition (DM or as stated)
 DM(% as fed) 65.0 65.0
 CP 14.9 14.8
 aNDF 30.6 29.5
 ADF 19.5 18.5
 Lignin 4.45 4.17
 Sugar 5.98 5.23
 Starch 35.73 38.02
 EE 3.50 3.19
 Ash 5.22 5.42
 TDN 72.4 73.8
 NEm (Mcal/kg of DM) 1.67 1.71
Corn TMR, control diet containing 33% flaked corn; Rice TMR, the diet containing 33% rice grain.
Vitamin A, 33,330,000 IU/kg; vitamin D, 40,000,000 IU/kg; vitamin E, 20.86 IU/kg; Cu, 20 mg/kg; Mn, 90 mg/kg; Zn, 100 mg/kg;Fe, 250 mg/kg; I, 0.4 mg/kg; Se, 0.4 mg/kg.
TMR, total mixed ration; DM, dry matter; CP, crude protein; aNDF, neutral detergent fiber analyzed with heat-stable α-amylase; ADF, acid detergent fiber; EE, ether extract; TDN, total digestible nutrients; NEm, net energy for maintenance.