author(s)
S Haloi, L Borah, R Bhuyan, BN Saikia, M Requib, MC Borah, CP Dixit and CD Singh

abstract
The study was conducted to evaluate the effect of feeding complete feed block (CFB) and total mixed ration (TMR) on lactational performance of crossbred cows. Eighteen crossbred cows of similar lactation and milk yield were randomly divided into three groups of six animals each. Animals in group T₀ were given concentrate and roughage separately. In T₁ and T₂ groups, animals were fed CFB and TMR, respectively. The body weight (kg), dry matter intake (g/ kg W ^0.75) and total digestible nutrient intake (kg/day) were comparable among the treatments. Intake of crude protein (kg/day), crude protein (g/ kg W ^0.75) and neutral detergent fibre (kg/day) were higher (P<0.05) in T₁ and T₂ group than T₀ group. Higher (P<0.01) 4% fat corrected milk yield (kg/day) and milk fat percentages (P<0.05) were observed in T₁ and T₂ group than T₀ group. The other milk constituents were not affected by the system of feeding.