Aim: The objective of this 
study to growth performance of the broiler birds after feeding Okara meal 
containing with or without non-starch polysaccharides degrading enzyme. 
              
              
 
Materials and Methods: 220 day-old broiler chicks were individually weighed 
and divided randomly into five treatment groups (T1, T2, T3, T4 and T5) 
consisting of 44 chicks each which was further subdivided into four replicates 
of 11 chicks. The feed consumption in each replicates of five groups was 
recorded daily for a total period of 6 weeks experimental feeding. 
              
 Results: 
The average total feed consumption of six weeks was 3948.10±7.60, 4088.76±8.30, 
4415.33±9.44, 4381.24±9.25 and 4728.76±10.05 (g) in groups T1, T2, T3, T4 and 
T5, respectively. The differences were statistically non-significant (P>0.05) 
among the various groups. The average total body weight gain and average daily 
weight gain in birds of group T4 were significantly higher (P<0.01) than birds 
of other groups except T3 group. It showed that 25 percent replacement of ground 
nut cake with Okara meal and addition of non-starch polysaccharides degrading 
enzyme (provizyme-bro) had positive effect on growth performance of birds. The 
increase in weight in broilers of enzyme added group T4 in comparison to their 
counterpart without enzyme group (T2 and T3) attributed to degradation of 
non-starch polysaccharides in ration, thereby, enhancing the utilization of 
other nutrients. 
              
 Conclusion: The findings indicated that 25 percent 
replacement of ground nut cake with Okara meal and addition of non-starch 
polysaccharides degrading enzyme had positive effect on growth performance of 
birds. So, Okara meal feeding had no adverse effect on growth performance of the 
broilers. 
              
 Keywords: broiler birds, degrading enzyme, groundnut cake, 
growth performance, non-starch polysaccharides, Okara meal