This research aimed to study performance, carcass production, meat quality, and economic feasibility of male Sumba Ongole cattle fed ration supplemented with velvet bean (M. pruriens). The research was designed in a completely randomized block design using 16 cattle with average body weight of 488+37.08 kg. The treatments were: T0= 15% straw + 85% concentrate; T1= T0 + 12% of velvet bean flour supplement; T2= T0 + 16% of velvet bean tempeh supplement; and T3= T0 + 200 mg/head/d of ractopamine hydrocloride. Data were analyzed by using analysis of variance with orthogonal contrast. The observed variables included feed consumption, average daily body weight gain (ADG), feed efficiency (FE), income over feed cost (IOFC), hot carcass weight (HCW), carcass percentage, subcutaneous fat thickness, meat pH, tenderness, cooking loss, and water holding capacity (WHC). The result revealed that the addition of 12% velvet bean flour into the rations increased dry matter consumption (P<0.05), but did not affect ADG, FE, IOFC, carcass production, and meat quality. The addition of 12% velvet bean flour produced the lowest cooking loss (P<0.05). The addition of 16% velvet bean tempeh into the rations significantly increased (P<0.05) dry matter consumption, however reduced (P<0.05) ADG, FE, and IOFC compared to control treatment. It is concluded that velvet bean flour at the level of 12% can be used as an alternative feed supplement in the ration of Sumba Ongole cattle and can replace the use of synthetic ß-agonist. ABSTRAKPenelitian ini bertujuan untuk mempelajari performa, produksi karkas, kualitas daging, dan economic feasibility dari sapi sumba ongole jantan yang mengkonsumsi kara benguk (M. pruriens). Penelitian ini dilaksanakan berdasarkan rancangan acak kelompok dengan menggunakan 16 ekor sumba ongole jantan dengan rataan bobot badan 488±37,08 kg dan menggunakan 4 jenis perlakuan, yaitu: T0= 15% jerami padi + 85% konsentrat, T1= T0 + 12% tepung kara benguk, T2= T0 + 16% tempe kara benguk, dan T3= T0 + 200 mg/ekor/hari ractopamine HCl. Data dianalisis menggunakan analisis ragam dan kontras ortogonal. Peubah yang diukur adalah konsumsi ransum, pertambahan bobot badan harian (PBBH), efisiensi pakan (EP), income over feed cost (IOFC), bobot karkas panas, persentase karkas, tebal lemak (subcutan), pH daging, keempukan, susut masak, dan daya ikat air. Hasil penelitian menunjukkan bahwa penambahan 12% tepung kara benguk meningkatkan konsumsi bahan kering (P<0.05), namun demikian tidak berpengaruh terhadap PBBH, efisiensi pakan, IOFC, produksi karkas, dan kualitas daging, serta menghasilkan susut masak terendah (P<0,05). Penambahan 16% tempe kara benguk pada ransum nyata meningkatkan konsumsi bahan kering (P<0.05), namun demikian menurunkan (P<0.05) PBBH, efisiensi pakan, dan IOFC dibandingkan kontrol. Dapat disimpulkan bahwa 12% tepung kara benguk dapat digunakan sebagai pakan tambahan alternatif dalam ransum ternak sumba ongole dan sebagai pengganti ß-agonist sintetis.

Sorghum feed is a type of cereal plant that has potential use as animal feed or forage. The reseach aim was to evaluate production and nutritional quality of some sorghum hybrid varieties, and determined the optimal spacing of sorghum plants. This research was arranged in a factorial randomized block design with 6 treatments and four replications. The first factor was the varieties of 12FS9006, 13FB7001 and 12S49001. The second factor was space of 25x25cm and 25x40 cm. The variables were fresh and dry matter of biomass production and also nutrient (ash, crude fiber, crude protein, Neutral Detergen Fiber and Acid Detergen Fiber. Sorghum varieties had significant effect (p<0.05) to fresh biomass production, dry matter biomass production, ash, crude ϐiber and crude protein). The space had a significant effect (p<0.05) to the dry matter production of biomass and crude fiber. The average variety of fresh biomass plant production was (18.90 tons ha-1), dry matter production of biomass was (4 ton ha-1), ash (5.51%), crude ϐiber (30.90%) and crude protein (8.45%). The average dry matter production was 4.34 tons ha-1 and crude ϐiber 29.96%. It can be concluded that the highest production and the best nutrient quality of sorghum hybrid was obtained at the sorghum variety of 12S49001, the distance of 25x25cm was the best plant space for hybrid sorghum production

The objective of this study was to evaluate nutrient digestibility and physiological status of local sheep at late pregnancy fed with flushing diet containing palm oil, lemuru oil, and their combination. In this research, the livestock used were 12 female local sheep at late pregnancy with an average body weight of 43.58 ± 5.57 kg were placed in metabolic cages. This study used a randomized block design (RBD) with 4 treatments and 3 block replications. The treatments were P1 = control ration (30% grass + 70% concentrate), P2 = control ration + 6% palm oil supplementation, P3 = control ration + 3% lemuru oil and 3% palm oil supplementation, P4 = control ration + 6% lemuru oil supplementation. The feed consumption, nutrient digestibility, and physiological status were measured in this study. The data obtained were analyzed using ANOVA. Means values differences were analyzed using Duncan test. The results showed that the addition of palm oil and lemuru oil to the concentrate diet increased (p<0.05) crude fat consumption, dry matter digestibility, and crude fat digestibility, but decreased (p<0.05) Nitrogen free extract consumption. Addition of palm oil and lemuru oil on the concentrate diet had no significant effect on dry matter consumption, crude protein consumption, crude fiber consumption, crude protein digestibility, crude fiber digestibility, Nitrogen free extract digestibility, and TDN value. The treatments did not affect significantly  on physiological status. It can be concluded that the use of 6% palm oil in the ration can increase crude fat consumption and crude fat digestibility in pregnant ewes. Key words:        digestibility, ewes, flushing, oil, physiological status

The objective of this study was to investigate the effect of drying temperatures on chemical composition, rumen fermentation, and digestibility of soybean and redbean (in vitro). Soybean and redbean were dried in an oven set at four different drying temperatures: 50, 60, 70, and 80 o C for 24 h in three replicates. The dried samples were then grilled and used further for chemical composition determination (proximate analysis, Van Soest analysis, and protein fraction) and in vitro rumen fermentation assay. Parameters measured in the in vitro assay were gas production, digestibility, pH, ammonia, and volatile fatty acids (VFA). Data obtained were analyzed by using analysis of variance and a posthoc test namely Duncan's multiple range test. Results showed that neutral detergent insoluble crude protein (NDICP) content was increased at higher drying temperature (70 or 80 o C) for both soybean and redbean (P<0.05). Similar to NDICP, higher temperature led to a greater acid detergent insoluble crude protein (ADICP) of soybean as well as those of redbean (P<0.05). Higher temperature decreased gas production rate (GPR) of both beans (P<0.05). Drying of soybean at 70 or 80 o C decreased crude protein digestibility (CPD) of soybean more than those of dried at 50 or 60 o C (P<0.05). Higher drying temperature resulted in a lower NH3 concentration of both beans (P<0.05). In conclusion, drying temperature at 50 or 60 o C was considered to be safe to maintain the nutritional quality of soybean and redbean.

ABSTRAKPenelitian ini bertujuan untuk mengevaluasi pertumbuhan pada beberapa varietas sorgum hybrid, serta menetapkan jarak tanam yang optimal pada tanaman sorgum. Penelitian ini  dilaksanakan di Laboratorium Lapangan Agrostologi Fakultas Peternakan IPB. Perlakuan dalam penelitian ini disusun secara faktorial (3x2) dalam Rancangan Acak Kelompok (RAK) dengan 6 perlakuan dan empat ulangan.  Faktor pertama adalah varietas 12FS9006, 13FB7001 dan 12S49001. Faktor kedua adalah  jarak tanam 25x25 cm dan 25x40 cm. Hasil penelitian menunjukan varietas sorgum berpengaruh sangat nyata (P<0,05) terhadap tinggi tanaman, diameter-2 batang, lebar, panjang dan jumlah daun.  Interaksi antara varietas dan jarak tanam tidak berpengaruh terhadap pertumbuhan. Demikian dengan jarak tanam tidak memberikan pengaruh nyata. Kesimpulan varietas 12S49001 memiliki pertumbuhan tanaman yang paling tinggi dan  jarak tanam optimun 25x25 cm. Varietas yang unggul ada pada varietas  12S49001 sebaiknya dikembangkan  sebagai pakan ternak.Kata Kunci:  jarak tanam, pertumbuhan, varietas hybrid.ABSTRACTThiese reseach aim was to evaluate growth of hybird sorghum varieties and well as establish the most ideal spacing on sorghum plants. This study was conducted in Agrostology Laboratorium Animal Science Faculty IPB. This study was arranged by 3x2 factorial in block randomized block design (RBD) with six treatments and four replications. The first factor was the varieties 12FS9006, 13FB7001 and 12S49001 varieties. The second factor was spac of 25x25 cm and 25x40 cm. The result showed sorghum varieties was significantly different (P<0,05) on plant height, stem diameter, width, length and number of leaves. Interaction between variety and plant spacing was not significantly on growth, so as plant spacing was not significantly. It concluded the highest growth of sorghum varieties 12S49001 and spac 25x25 cm was the best plan spac for hybrid sorghum.Keywords: hybrid varieties, growth, spacing