This research aimed to evaluate the effect of cassava leaf meal with enzyme supplementation in feed on the digestive organs of the broiler. The research used a completely randomized factorial design on 48 Cobb-strain broilers distributed into two observation factors and four replications (consisting of 2 samples). The observation factor is factor 1 is the addition of cassava leaf meal (0%; 1.5%; and 3.0%), and the second factor is the addition of non-starch polysaccharides and protease enzymes with each dose of 250 g/ton feed (with and without enzymes). The variables analyzed were the relative weight of the digestive organs, the relative weight of the parts of the small intestine, and the relative length of the parts of the small intestine. The data obtained were analyzed by analysis of variance (ANOVA), and if the results indicated significantly different, then the posthoc test was conducted. The results showed that the addition of cassava leaf meal could increase the relative weight of the gizzard significantly (p<0.05). The addition of enzymes can significantly decrease the relative weight of the gizzard, small intestine, pancreas, ileum, and the relative length of the duodenum and ileum (p<0.05). The use of cassava leaf meal in the feed up to 3.0% does not interfere with digestive organs. There was no interaction between cassava leaf meal and enzymes on size response of digestibility broiler organ. The addition of enzymes can offset the detrimental effects caused by the use of cassava leaf meals in feed.

The research aimed to evaluate the effect of cassava leaf meal with enzymes supplementation in the feed on the performance of broiler. The research used factorial completly randomized design 2x3 on 240 Cobb-strain broilers. There were 6 treatments with 2 factors is used cassava leaf meal (CLM) and enzymes (non-starch polysaccharides and protease) with each dose 250 g/ton feed, i.e. P1: basal ration, P2: basal ration with enzymes, P3: ration with 1.5% CLM, P4: ration with 1.5% CLM and enzymes, P5: ration with 3.0% CLM, P6: ration with 3.0% CLM and enzymes. The variables analyzed were body weight, body weight gain, feed intake, feed conversion ratio, and mortality. The data obtained were analyzed by analysis of variance (ANOVA) and if the results indicated significantly different, then the post-hoc test conducted. The results showed that there was an interaction between CLM and enzymes on the feed conversion ratio (P < 0.05). The addition enzymes can decrease feed conversion ratio (from 1.91 to 1.74) siginificantly (P < 0.05). Addition CLM to a level of 3.0% did not interfere with performance. Enzymes can offset the detrimental effect caused by the use cassava leaf meal in the feed.