Judul: Jenis dan Kualitas Nutrisi Pakan di Peternakan Rakyat Lembang Bandung Utara sebagai Dasar Penyusunan Formulasi Ransum
Abstrak: This study aimed to obtain information about the type and quality of forage and concentrate feed ingredients in Lembang KPSBU during dry and rainy seasons. This information will be used as a basis for livestock rations formulation according to need and availability of the feed. Identification the type and quality of feed used was conducted through survey (interview and field observation) while nutrient quality were measured using the proximate analysis, mineral and digestibility in vitro. T-test was used to compare the quality of the forage in the dry season and the rainy season. Type of forage used were napier grass, field grass, agricultural waste such as straw and cabbage waste. While type of concentrate used were KPSBU concentrate, tofu waste, brewery waste and pollard. Nutrient quality of forage in the rainy season is better than the dry season. Based on nutrient content and requierment ration have been formulated from 12% teki grass, Taiwan grass 48%, 5% cassava pomace, PA Tofu waste 15% and 20% concentrate KPSBU which contained 33.37% dry matter, 14.89% PK, 24.89% SK, 64.27% TDN, 0.20% Ca and 0.21% P.
Keyword: forage, feed nutrition, feed formulation, concentrate

Judul: Jenis dan Kualitas Nutrisi Pakan di Peternakan Rakyat KUNAK Cibungbulang Bogor sebagai Dasar Penyusunan Formulasi Ransum
Abstrak: The research was aimed to identify type of feed that used by farmers in Cibungbulang Bogor and find out nutritional content as basis for formulation of feed rations. This study uses descriptive analysis to describe type and quality of feed used and T-test were used to compare quality of forage and agricultural waste in dry season and the rainy season. Type of forage used in KUNAK among others field grass, grass taiwan, king grass, hawaii grass, rice straw, corn husk, and cabbage waste. Concentrates used are tofu, tempe waste, rice bran, and concentrates. Formulation results based on the average performance of lactating cows using available feed, consisted of Taiwan grass 48%, and concentrates A from Bogor 18%, field grass 10%, rice bran 10% and 14% tempe waste. Formula contained 16.5% CP, 21.5 CF%, 70.6% TDN, 0.45% Ca and 0.28% P.
Keyword: season, forage types, feed nutrition, feed formulation

Judul: Pengamanan Internet of Things (IoT) untuk Tanda Tangan Digital Menggunakan Algoritme Elgamal Signature Scheme
Abstrak: Internet of Things (IoT) memungkinkan suatu objek menghasilkan data dan bertukar data. Pengaplikasian IoT menggunakan mikrokontroler seperti Arduino masih belum terdapat keamanan data di dalamnya. Selain itu, Arduino memiliki kapabilitas komputasi terbatas. Oleh karena itu, perlu diterapkan kriptografi dengan algoritme yang memiliki komputasi rendah pada Arduino untuk menjaga keamanan data. Keamanan data terutama pada keaslian asal data, dengan melakukan tanda tangan digital. Penerapan tanda tangan digital dapat dilakukan salah satu contohnya dengan algoritme Elgamal signature scheme. Penerapan tanda tangan digital menggunakan algoritme Elgamal signature scheme berhasil diterapkan pada perangkat Arduino Uno untuk melakukan tanda tangan digital dan verifikasi. Kinerja algoritme Elgamal signature scheme dilihat dari analisis waktu eksekusi dan analisis keamanan algoritme. Waktu eksekusi proses tanda tangan digital membutuhkan waktu lebih lama dibandingkan dengan waktu eksekusi proses verifikasi. Algoritme Elgamal signature scheme membutuhkan waktu dua kali lebih lama karena banyaknya perhitungan sistematis pada perangkat Arduino Uno. Proses verifikasi terbukti gagal jika ada perubahan data dan pasangan tanda tangan digital.
Keyword: Arduino, Elgamal signature scheme, internet of things, kriptografi, tanda tangan digital