Judul: Regression Analysis of Harvesting Age (Generative Period) on Nutrition Value of Sorghum Plant (Sorghum bicolor L.)
Abstrak: Umur panen dapat menentukan nilai nutrien yang terkandung pada hijauan pakan ternak. Pemanenan dengan umur yang tua akan meningkatkan produktivitas, namun nilai nutrien yang terkandung akan makin turun dan kurang optimal. Bertujuan untuk mengetahui pengaruh umur panen terhadap nilai nutrisi pada tanaman sorgum. Data yang digunakan untuk mengkaji pengaruh umur panen terhadap nilai nutrisi pada tanaman sorgum (Sorghum bicolor) sebanyak 113 data dan di input pada Microsoft Excel. Data tersebut meliputi umur panen dan nilai nutrisi sorgum yang meliputi protein kasar, serat kasar, lemak kasar, abu, TDN, ADF, NDF, BETN, Ca, dan P. Kemudian data yang telah didapatkan dianalisis menggunakan analisis statistika deskriptif dan analisis regresi sederhana. Hasil penelitian menunjukkan bahwa umur panen berpengaruh signifikan pada ADF (P≤1; R2=0,13), NDF (P≤1; R2=0,13), serta BETN (P≤1; R2=0,93). Kata kunci: analisis regresi, umur panen, Sorghum bicolor. ABSTRACT MUTMAINNAH. Regression Analysis of Harvesting Age (Generative Period) on Nutrition Value (Generative Period) of Sorghum Plant (Sorghum bicolor L.) Supervised by NUR ROCHMAH KUMALASARI dan LUKI ABDULLAH. Harvesting time determine the value of nutrients content in the forage. Harvesting with in old age increase biomass productivity, but the value of the nutrients contained will decrease and be less than optimal. This study was to determine the effect of harvest age on the nutritional value of sorghum plants. The data was 113 secondary data and input in Microsoft Excel. The data includes harvest age and sorghum nutritional value which includes crude protein, crude fiber, crude fat, ash, TDN, ADF, NDF, BETN, Ca and P. Data were analyzed by descriptive statistical analysis and simple regression analysis. The results showed that harvest age had a significant effect on ADF (P≤1; R2=0.13), NDF (P≤1; R2=0.13), and BETN (P≤1; R2=0.93). Keywords: harvest age, regression analysis, Sorghum bicolor L.
Keyword: Harvesting Age, Regression Analysis, Sorghum bicolor L.

Judul: Evaluasi produksi dan kualitas sorgum samurai 1 pada umur panen berbeda periode generatif
Abstrak: Penelitian ini dilakukan untuk mengevaluasi produksi dan kualitas sorgum samurai 1 pada umur panen berbeda periode generatif. Penelitian dilaksanakan di Unit Pendidikan Penelitian Peternakan Jonggol (UP3J) dan juga di laboratorium agrostologi dan laboratorium Ilmu dan Teknologi pakan Fakultas Peternakan Institut Pertanian Bogor selama 6 bulan. Penelitian ini menggunakan sorgum samurai 1 dengan metode rancangan acak kelompok (RAK) dengan 3 kelompok umur panen 80 HST (U1), 87 HST (U2) dan 94 HST (U3), dengan 5 kali ulangan. Analisis data menggunakan sidik ragam anova dan dilanjutkan dengan uji DMRT. Hasil penelitian menunjukkan bahwa umur panen yang berbeda berpengaruh nyata terhadap berat segar malai dan juga nilai dari NDF. Nilai brix berbanding lurus dengan umur panen, dimana semakin lama umur panen maka nilai brix juga akan semakin meningkat. Umur panen 87 HST memiliki nilai paling tinggi pada berat total sorgum, berat batang, berat daun, dan juga berat malai., This research was conducted to evaluate the production and quality of Sorghum Samurai 1 at different harvesting ages during the generative period. The research was carried out at the Jonggol Animal Husbandry Research Education Unit (UP3J) and also at the agrostology laboratory and feed science and technology laboratory, Faculty of Animal Husbandry, Bogor Agricultural University for 6 months. This study used Sorghum Samurai 1 using a randomized block design (RBD) method with 3 harvesting age groups of 80 DAP (U1), 87 DAP (U2) and 94 DAP (U3), with 5 replications. Data analysis used analysis of variance and continued with the DMRT test. The results showed that different harvest ages had a significant effect on the fresh weight of panicles and also the value of NDF. The value of brix was directly proportional to the age of harvest, where the longer the harvest age, the value of brix will also increase. The harvest age of 87 HST has the highest value on the total weight of sorghum, stem weight, leaf weight, and also panicle weight.
Keyword: DAP, NDF, harvest age, panicle, sorghum

Judul: Simulasi Protokol Autentikasi Pelanggan pada Voice Privacy
Abstrak: Existing design of the telephone public network is susceptible to eavesdropping on its voice stream. Consequently, any wire taper can listen to supposedly private conversation. In order to prevent such eavesdropping, we propose a protocols and its implementation for end-to-end voice privacy authenticate as a service available for interested subscribers. Our protocols consist of customer enrollment system, customer authentication system and simulation voice privacy. Protocols that we made are adaptation from Sharif and Wijekesera journal with the title Providing Voice Privacy as a Service over the Public Telephone Network. The result of the process shows how the customer enrolls and how the system process the password, how the system authenticate customer simulate voice privacy.
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