Suatu penelitian telah dilakukan untuk melihat sejauh mana pengaruh pemupukan anorganik dan organik terhadap tinggi tanaman, panjang dan lingkar tongkol serta bobot pipilan kering jemur jagung. Penelitian ini dilaksanakan di lahan pertanian milik keluarga M. Manoppo yang dimulai sejak bulan April 2009 sampai dengan Oktober 2009 di Desa Koka Kecamatan Tombulu Kabupaten Minahasa.  Jumlah petak yang digunakan dalam penelitian ini sebanyak 20 (dua puluh) petak yang ditempatkan secara acak dengan ukuran 2 x 2 meter dengan jarak tanam 50 cm x 70 cm dan jenis benih jagung yang digunakan adalah jagung hibrida (NUSANTARA 1). Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK), terdiri dari 5 kelompok dan 4 perlakuan yang terdiri dari T0 (tanpa pemupukan), T1 (pemupukan anorganik dengan dosis 3,67 kg/petak), T2 (pemupukan organik dengan dosis 1,4 kg/petak) dan T3 (menggabungkan pupuk anorganik dengan dosis 1,83 kg/petak dan pupuk organik dosis 0,7 kg/petak). Variabel yang diukur meliputi tinggi tanaman, panjang dan lingkar tongkol serta bobot pipilan kering jemur. Pengambilan data dilakukan disaat panen sampai dengan selesai penjemuran jagung yang telah dipipil. Data yang diambil kemudian ditabulasi dan diuji menurut analisis keragaman untuk melihat pengaruh perlakuan. Uji lanjut Beda Nyata Jujur (BNJ) dilakukan untuk melihat perbedaan antara masing-masing perlakuan. Hasil analisis keragaman menunjukkan bahwa perlakuan memberi pengaruh yang berbeda nyata (P > 0,05) terhadap panjang dan lingkar tongkol serta bobot pipilan kering jemur. Dari penelitian yang telah dilakukan diambil kesimpulan bahwa pemupukan dengan menggabungkan antara pupuk anorganik dan organik lebih meningkatkan produksi tanaman jagung baik itu panjang tongkol, lingkar tongkol dan bobot pipilan kering jemur.

Aim: This study aimed to assess the nutritional values of corn stover and king grass (Pennisetum purpupoides) in complete feed on the productivity of male Ongole steer calves. Materials and Methods: This study was conducted in two steps: Cattle adaptation and data collection. Cattle adaptation was carried out for 2 weeks, and the cattle were fed the experimental feed. The experimental feed was formulated into five combinations: R1 (50% king grass); R2 (12.5% corn stover +7.5% king grass 50% concentrate); R3 (25% corn stover+25% king grass); R4 (37.5% corn stover+12.5% king grass); and R5 (50% corn stover). All experimental feeds were added with 50% concentrate. Data were collected in five intervals, and each interval was of 4 weeks. In every interval, weight gain and digestibility were measured every day, beginning from the 4th week by collecting feces. Dry matter (DM), organic matter (OM), crude protein (CP) digestibility, neutral detergent fiber (NDF), acid detergent fiber (ADF), body weight gain, and feed conversion data were analyzed. Results: R4 and R5 treatment significantly increased (p<0.05) the feed nutritional value and weight gain of male Ongole steer calves. Interestingly, treatment with R4 had the maximum increase (p<0.05) on the digestibility value of each variable: DM, 68.85%; OM, 71.89%; CP, 73.90%; NDF, 59.10%; ADF, 55.35%; and weight gain, 0.61/gr/day. Conclusion: R4 treatment found to be the best nutritional value for improving the productivity of male Ongole steer calves.

EVALUATION OF BIOLOGICAL VALUE OF DRY MATTER AND ORGANIC MATTER COMPLETE FEED BASED ON CORN FORAGE IN DAIRY COWS. This aim of this study was to determine intakes and digestibility of the dry matter and organic matter of complete feed based on corn forage. 14 FH cows weighing 300-400 kg were used in this research. The feed treatments consist of  Ra (30% concentrate + 70% corn forage), and  Rb (30% concentrate + 35% corn forage +    35% king grass). This experiment arranged in a statistical method of t-test two sample assuming unequal variance. The variables observed were intakes and digestibilities of both dry matter and organic. The results shows that the intakes of both dry matter and organic matter in the Ra were not significantly different from the Rb (P> 0.05). The dry matter digestibility of Rb were highly significant different from Ra (P<0.01), as well as organic matter digestibility of Rb was also significantly different from Ra (P <0.05). It is concluded that complete feed consisting of concentrate, corn forage and king grass was obtained the best digestibilities of both dry matter and organic matter.

DIGESTIBILITY OF CRUDE FIBER AND NNFE (NON NITROGEN FREE EXTRACT) COMPLETE FEED BASED ON CORN FORAGE ON ONGOLE CROSSBREED CATTLE.  This Research was conducted to evaluate digestibility of crude fiber and NNFE (non nitrogen free extract) complete feed based on corn forage and king grass on ongole crossbreed cattle. The total of 14 ongole crossbreed cattle at age of 1,5 – 2 years old with the body weight of 180 – 250 kilogram were used in this study. The completely using the analysis t-Test (Two-Sample Assuming Unequal Variences) randomized design involving 2 treatments and 7 replications in each treatment was applied at the experimental unit. The treatments of this research were consisted of Ra = corn forage 50% + concentrate 50% and Rb = corn forage 25% + king grass 25% + concentrate 50%. The results of this research showed that consumption of crude fiber was not significantly (P>0,05) but digestibility of crude fiber was very significantly (P<0.01). Digestibility of NNFE was significantly (P<0.05). Based on the result of this study can be concluded that the complete feed based on corn forage and king grass on ongole crossbreed cattle composition 50% consentrate + 25% corn forage + 25% king grass increase consumption of NNFE, digestibility of Crude fiber and digetibility of NNFE. Key Words: crude fiber, NNFE, corn forage, ongole crossbreed cattle.

COMPARISON OF BIOLOGICAL VALUE OF LOCAL AND IMPORT FEED IN INDONESIAN CHILD RACE HORSE. This research aims to determine the livestock child race horse's ability to digest feed, both local and imported feed. Digestibility of nutrients is a factor that determines the quality of feed ingredients or feed consumed by the livestock horses. This research used Statistics t-test method.Techniques of data retrieval are interviews and direct observations at sites of breeding racehorses. Data collected ie the type of local feed (corn, rice bran, fish meal, soybean, mung beans, coconut cake) and the types of imported feed (sustaina). The amount of feed (forage and concentrates) were given to livestock of child racehorse obtain the amount of feces (g / head / day) is then taken as many as 12 samples each of 8 racehorses using local feed and 4 racehorses use imported feed. The variables measured are digestibility of energy and protein digestibility. The results of the research are digestible energy (local feed ± 85.92 and imported feed ± 87.58) and protein digestibility (local feed ± 75.86 and imported feed 86.89 ±). T test, showed that the energy digestibility of feed imports give effect not significantly different (P> 0.05) compared to local feed while the digestibility of protein feed imports significantly different (P <0.01) in comparison with the local feed. Based on these results it can be concluded that the digestibility of protein for imported feed better than the local feed. Keywords: livestock horses, local feed, imported feed, digestibility