RESPONS PRODUKSI SAPI PERANAKAN ONGOLE PADA PEMBERIAN BERBAGAI FORMULA "UREA MOLLASES MULTINUTRIENT BLOCK" DENGAN RANSUM BASAL JERAMI PADI

Abstract

Research on the response of Ongole Crossbred cattle to various formulas of Urea Molasses Multi-nutrient Block (UMMB) was conducted during May to September 2001 in Keling Village, Dayang municipality, Grobogan. The research was carried out in 2 phase experiments. Experiment I was carried out to find out the best formula of UMMB in term of palatability, while experiment II was to find out the response of the cattle to those best formulas. In the experiment I, as many as 9 formulas of UMMB were randomly given to 4 experimental animals in free choice feeding system. This experiment was conducted using 3 x 3 factorial in Completely Random Design (CRD). Factor A was molasses content (20, 30, and 40%), while factor B was salt content (5, 7, and 9%). Variables that were observed in the first experiment were UMMB and crude protein consumptions. In Experiment II, the three best formulas of UMMB from the experiment I were fed to 12 Ongole Crossbreed cattle with the rice straw basal diet, using Randomly Block Design (RBD). Average daily gain, feed conversion and feed efficiency were observed during second experiment. Statistical analysis revealed that salt and molasses content in UMMB were significantly interacted influenced (P<0.05) both UMMB and crude protein consumptions in Ongole Crossbred cattle. UMMB consumptions were recorded as many as: 1195.0, 367.5, 170.0, 582.50, 1612.5, 1112.50, 477.5, 340.0, and 432.5 g/day for molasses-salt combinations of 5:20, 5:30, 5:40, 7:20, 7:30, 7:40, 7:40, 9:20, 9:30, and 9%:40%, respectively. While UMMB crude protein consumption was recorded as many as 234.22, 74.38, 32.13, 114.75, 317.66, 221.39, 105.05, 59.16, and 83.47 g/day for the molasses-salt combination of: of 5:20, 5:30, 5:40, 7:20, 7:30, 7:40, 7:40, 9:20, 9:30, and 9%:40%, respectively. Feeding Ongole crossbred cattle with 70:30, 5:20, and 7%:40% molasses-salt combination formula of UMMB was caused high significantly (P<0.01) improved its total dry matter intake, but not in average daily gain, and feed efficiency. Total dry matter intake was recorded as high as 9.02, 9.11, and 9.30 kg/day for the 70:30, 5:20, and 7%:40% molasses-salt combinations, respectively. The average daily gain, feed conversion, and feed efficiency were 0.75 kg/day, 12.42, and 8.23%, respectively. While feed cost per gain in this experiment was recorded as much as 33.8, 29.51, and 37.27% for the molasses-salt combination of 70:30, 5:20, and 7%:40%, respectively. Based on this research, it might be concluded that molasses and salt content in the UMMB was interacted influence its palatability, 7:30 (%) molasses-salt combination was found to be the most economically in rice straw feeding based of Ongole Crossbreed cattle. Penelitian untuk mengetahui respons sapi Peranakan Ongole (PO) terhadap pemberian "Urea Molases Multinutrient Blocks" (UMMB) telah dilakulcan pada bulan Mei sampai dengan September 2001, yang dilaksanakan di Desa Keling Dayang Purwodadi Grobogan. Penelitian ini dilakukan dalam 2 tahap, tahap I bertujuan untuk mencari formula "Urea Molases Multinutrient Blocks" (UMMB) yang disukai oleh temak, sedangkan tahap II untuk mengetahui respons produksi terhadap UMMB yang dicobakan. Pada penelitian tahap 1, 9 formula UM/v113 diberikan secara acak kepada 4 ekor sapi secara "Free Choice Feeding" mencfcrtmakan Rancangan Acak Lenglcap (RAL) pola faktorial (3x3). Faktor A berupa Icandtmgan molases dalam UMMB, yaitu 20, 30 dan 40%; sedang faktor B adalah kandungan garam dalam UNME3, yaitu 5, 7 dan 9%. Parameter yang diamati dalam penelitian tahap I adalah palatabilitas UMMB dan konsumsi protein kasar UMMB. Dalam penelitian tahap II, 3 buah formula terbaik dari penelitian tahap I dicobakan terhadap 12 ekor sapi Peranakan Ongole (PO) mengikuti Rancangan Acak Kelompok. Parameter yang diamati dalam penelitian tahap Ii adalah (a) pertambahan bobot badan, (b) konsumsi bahan kering, (c) konversi pakan, dan (d) efisiensi ekononii. Hasil penelitian menunjukkan bahwa : pada penelitian tahap I kadar garam dan molases UMMB berinteraksi (P<0,05) dalam mempengaruhi konsumsi UMMB dan protein kasar UMMB. Konsumsi UMMB pada penelitian ini sebesar 1195; 367,50; 170; 582,50; 1612,50; 1112,50; 477,50; 340..dan 432,50Whari, masing-masing untuk kombinasi garam molases sebesar 5:20; 5:30; 5:40; 7:20; 7:30; 7:40; 9:20; 9:30 dan 9%:40%. Sedangkan konsumsi protein kasar UMMB sebesar 234,22; 74,38; 32,13; 114,75; 317,66; 221,39; 105,05; 59,16 dan 83,47g/hari masing-masing untuk kombinasi garam molases pada 5:20; 5:30; 5:40; 7:20; 7:30; 7:40; 9:20; 9:30 dan 9%:40%. Penggunaan formula UMMB dengan perbandingan garam dan molases 7:30; 5:20 dan 7%:40% pada sapi Peranakan Ongole (PO) walaupun menyebabkan perbedaan sangat nyata (P<0,01) pada konsumsi bahan kering temyata tidak menyebabkan perbedaan (P>0,05) pertambahan berat badan, konversi pakan dan efisiensi penggunaan pakan. Konsumsi bahan kering sapi yang diberi formula UMMB 7:30; 5:20 dan 7%:40% masing — masing sebesar 9,02; 9,11 dan 9,30 kg/hari. Rata — rata pertambahan bobot badan, konversi pakan dan efisiensi penggunaan pakan sapi Peranakan Ongole yang diberi formula UMMB tersebut masing—masing sebesar 0,75 kg/hari; 12,42 dan 8,23%. Nilai "feed cost per gain "yang diperoleh dalam penelitian inisebesar 33,8; 29,51 dan 37,27% masing-masing untuk formula 1.11\41413 dengan kombinasi garam molases sebesar 5:20; 7:30 dan 7%: 40%. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa kandungan garam dan molases dapat mempengaruhi patatabilitas UMMB. Kandungan garam dan molases 7% : 30% ternyata lebih menguntungkan jika dibandingkan dengan formula 5 : 20 dan 7%: 40%.