Exogenous Cellulase Enzyme Supplementation in Complete Feed Based On Fermentation of Banana Stems for Nutritional Consumption of Beef Cattle

The obstacle to increasing beef cattle production in East Nusa Tenggara, especially Timor Island, is that feed by farmers is still below the dry matter requirements for beef cattle. This fact shows that it is necessary to add supplements to the feed. Therefore, the exogenous addition of cellulase enzymes is a solution to increase the digestibility of feed in the rumen of beef cattle that consume high fiber feed in areas with a long dry season and only available feed in the form of agricultural and plantation waste. The main aim of this research is to determine the effectiveness of its use. cellulase enzyme exogenously at different levels of use. In this study,18 male Bali cattle were used, aged 1 – 1.5 years with a body weight range of 108-116 kg with an average of 112.79 kg and a CV of 5.72%. The research method used was an experimental method using a Completely Randomized Design (CRD) with 3 treatments and 6 replications. The treatments in this study were P0; Leucaena leucocephala forage 70% + complete feed 30%, P1 Leucaena leucocephala forage 70% + complete feed 30% + cellulase enzyme 10 grams/kg dry matter complete feed, P2; Leucaena leucocephala forage 70% + complete feed 30% + added cellulase enzyme 15 grams/kg dry matter complete feed. The results showed that the dry matter consumption (g/h/d) of treatment P0 was 2,624.26±10.9, P1 2,618.94±15.6, P2 2,681.69±36.1, organic matter consumption (g/h/d) treatment P0 2,148.93±9.0, P1 2,149.66±12.9, P2 2,200.75±29.9 and crude protein consumption (g/e/d) P0 557.05±2.3, P1 548.91±3.3, P2 549.58±7.7. The results of the statistical analysis showed that the treatment had a significant effect of P<0.05 on the consumption of dry matter, organic matter and no significant effect of P>0.05 on the consumption of crude protein in fattening Bali cattle. The conclusion of this research is that complete feed supplementation based on fermented banana stems with cellulase enzyme supplementation at different levels has an influence on increasing consumption of dry matter and organic matter, but has the same influence between treatments on crude protein consumption of fattening Bali cattle.