Judul: Efektivitas Penggunaan Bawang Putih dan  Zeolit sebagai Penghambat Kerusakan  Fisik pada Jagung dan Dedak Padi  selama Proses Penyimpanan
Abstrak: The objective of this experiment was to study the effect additive of garlic and zeolite addition on physical damage of corn and rice bran during 8 weeks storage process. This experiment used a completely randomized factorial design (5x4x3), with faktor A was storage periods (0,2,4,6,8 weeks) and faktor B was additive addition (4). The treatments were P0 (corn/rice bran), P1 (P0 + zeolit (1%)), P2 (P0 + garlic (1%)), P3 (P0 + commercial anti mold (0,15%)). The experiment was conducted for 8 weeks and analysed at 0,2,4,6,and 8 weeks of storege periods. Variables observed were moisture, water activity, bulk density, compacted bulk density, energy float, and angle of repose. The data were analysed using Analysis of Variance and the significant result was examined by Duncan’s New Multiple Range. Temperature and humidity during experiment were 27.580 C and 83.79% respectively. The storage periods significantly (P<0.05) increased moisture content (5-7%) and water activity (2.7-8.1%) at rice bran and corn. The addition of additive also decreased energy float (12.4-62.7%), angle of ripose (2.32-6.45), bulk density (6.9-27.9%), and compact bulk density (2.4-9.75%). There was interaction between storage periodes and additive on moisture, angle of ripose and energy float of rice bran, and also on water activity and compact bulk density of corn. In conclusion the addition of zeolit is effective to prevent physical damage in term of keeping moisture content, angle of ripose, energy float for rice bran and compact bulk density for corn, but addition of garlic was not effective to prevent physical damage in corn and rice bran during storage.
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Judul: Efektivitas Penggunaan Zeolit dan Bawang Putih sebagai Penghambat Kerusakan Kimia pada Jagung dan Dedak Padi selama Proses Penyimpanan.
Abstrak: Jagung dan dedak padi merupakan bahan pakan yang sering digunakan dalam industri pakan, terutama industri pakan unggas. Namun suplai dari kedua bahan tersebut masih tergolong fluktuatif dalam segi kuantitas dan kontinuitas terutama disebabkan oleh musim. Untuk mencegah kelangkaan bahan baku pada musim tertentu, industri pakan menyimpan bahan baku dalam jumlah besar agar proses produksi dapat terus berjalan untuk memenuhi permintaan konsumen. Penyimpanan bertujuan untuk menjaga dan mempertahankan mutu dari komoditi yang disimpan dengan cara menghindari, mengurangi atau menghilangkan berbagai faktor yang dapat menurunkan kualitas dan kuantitas.
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Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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