SUBSTITUTION OF RICE BRAN WITH SOIL BEAN SKIN TO INCREASE THE GROWTH OF COWS IN BULELENG DISTRICT, BALI

This study aim to increase feeder cattle growth in Buleleng Bali has been done in Tulus Bakti livestock group from February - June 2019. Completely Randomized Design (CRD) is used. feed treatments: R0 = Cows given forage + 1 kg /cow / day rice bran, R1 = Cows given forage + 1 kg / cow / day (50% rice bran mixed by 50% peanut skin) and R2 = Cows given forage + 1 kg /cow / day (25% rice bran mixed by 75% peanut skin). Parameters observed were weight gain, feed consumption, and Feed Conversion Ratio. To find out farm feasibility level, Revenue cost ratio analysis is done. Result showed cows given R1 treatment resulted 0.40 kg / day weight gain, not significantly (P> 0.05) from R0 and R2. Ration consumption and FCR also no significant (P> 0.05). Farming analysis results showed three treatments gave benefits, but R2 gave highest benefits, its can be seen from R / C ratio R2 (1.22), R1 (1.21) and R0 (1.20). 75% of rice bran substituion by peanut skin can reduce feed prices untill 52.03% and give profit IDR. 1,340,122 so feasible to apply