Effect of exogenous fibrolytic enzymes supplementation on growth and nutrient utilization in Murrah buffalo calves

S S THAKUR, M P VERMA, BABAR ALI, S K SHELKE, S K TOMAR

Abstract


The present experiment was conducted to study the effect of supplementing exogenous fibrolytic enzymes (cellulase 4050 μM glucose/g/h and xylanase 8600 μM xylose/g/min mixed equally w/w) at 2 levels @ 1.5 and 3.0 g mixture/kg DM of TMR on the growth performance and nutrient utilization in buffalo calves. Female Murrah buffalo calves (18) were randomly divided into 3 groups (8–10 month of age; 149.44, 151.08 and 151.62 kg BW; 6 each) and fed concentrate, wheat straw and green maize fodder in 40: 45:15 proportions (DM basis) in control group and the same ration as fed to control group plus 1.5 g enzyme mixture/kg DM of TMR (group 1) and 3.0 g enzyme mixture/kg DM (group 2) for 120 days. Average body weight gain in group 1 was 96.10 kg, which was higher than group 2 (83.20 kg) and control group (83.08 kg). Average daily gain was also higher in group 1 (800.79 g/d) over the group 2 (693.33 g/d) and control group (692.35 g/d). DMI was higher in group 1 (4.37 kg/d) as compared to control (4.24 kg/d) and group 2 (4.24 kg/d). The digestibility coefficient of NDF, cellulose and hemicellulose were higher in group 1 over the group 2 and control group. It could be concluded that supplementation of exogenous fibrolytic enzymes @ 1.5 g mixture/kg DM improved the growth rate in Murrah buffalo calves.


Keywords


Buffalo calves; Fibrolytic enzymes; Growth; Nutrient utilization

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