KECERNAAN NDF DAN ADF YANG MENDAPAT SUPLEMENTASI UREA MOLASSES MULTINUTRIENT BLOCK (UMMB) DARI BEBERAPA JENIS LIMBAH PERTANIAN DAN RUMPUT LAPANG PADA SAPI PERANAKAN ONGOLE (PO)

NDF AND ADF DIGESTIBILITY WHICH GET THE SUPPLEMENTED UREA MOLASSES MULTINUTRIENT BLOCK (UMMB) OF SOME CROP RESIDUES TYPE AND LOCAL GRASS ON ONGOLE CROSSBRED CATTLE. A research evaluating dry matter (DM) and organic matter (OM) digestibility of crops residues and local grass supplemented urea molasses multinutrient block (UMMB) on Ongole crossbred cattle (PO). Four male PO cattle, 12 – 18 months of age with ± 100 kg of body weight were used in this experiment. Latin Square Design 4 x 4 with 4 cows and 4 treatments was used. The treatments were : R1 : UMMB + local grass, R2: UMMB + Corn straw, R3: UMMB + Rice straw, and R4: UMMB + peanut straw. The results showed that there were significant effect (P<0.01) of treatments on NDF and ADF digestibility. C1 showed that NDF and ADF digestibility of local grass (68.44% and 61.37%) were higher (P<0.05) compared to crop residues (corn straw 65.25% and 58.59%, rice straw 62.63% dan 52.80%, and peanut straw 67.53% and 59.81%) respectively. C2 showed that NDF and ADF digestibility of legume straw was higher than grasses straw; and C3 showed that  NDF and ADF digestibility of rice straw was lower than corn straw. The results have concluded that : 1. NDF and ADF digestibility of local grass were higher compared to crop residues. 2. NDF and ADF digestibility of legume straw (peanut straw) was higher than grasses straw  (corn straw and ricce straw);3. NDF and ADF digestibility of  corn straw was higher than peanut straw.Key words: NDF and ADF digestibility, crop residues, UMMB, ongole crossbred cattle