Judul: Production and Quality of Chicken Eggs in  Different Multiple Cage Positions in Closed House System Cages at PT AS Putra  Layer
Abstrak: Pemeliharaan ayam petelur pada saat ini banyak beralih menggunakan kandang closed house, karena mampu meningkatkan produktivitas ternak. Penelitian ini dilakukan untuk mengkaji pengaruh posisi yang berbeda didalam kandang closed house terhadap performa produksi dan kualitas telur ayam strain hy-line brown. Peubah yang diamati adalah produksi telur terdiri dari hen day production (%HDP), bobot telur, dan kualitas telur terdiri dari haught unit, tebal kerabang dan warna telur. Penelitian ini menggunakan rancangan acak lengkap (RAL), posisi (depan, tengah, belakang) sebagai perlakuan dengan 6 ulangan. Data yang diperoleh dianalisis menggunakan ANOVA dan uji lanjut Duncan. Hasil pengamatan terhadap iklim mikro dalam kandang menunjukkan suhu tertinggi berada di posisi belakang, kelembaban tertinggi berada di posisi depan, kecepatan angin tertinggi berada di posisi belakang. Hasil perhitungan, suhu efektif dari ketiga posisi berada pada kisaran suhu nyaman, kondisi ini mungkin yang menyebabkan produksi telur dan kualitas telur yang dihasilkan tidak berbeda nyata.
Keyword: closed house, egg production, egg quality, laying hen, microclimate

Judul: Performa Produksi dan Kualitas Telur Ayam Petelur pada Sistem Litter dan Cage dengan Suhu Kandang Berbeda.
Abstrak: Housing temperature and housing system may influence productive performance and egg qualities. This research aimed to investigate the influence of different housing temperatures and housing system on productive performance and egg qualities. A total of 72 Lohmann hens were reared in litter and cage system with different housing temperatures of 18 oC and 30 oC. Each treatment consisted of 18 hens. Traits measured were productive performance (feed intake, hen day production, egg weight, egg mass, and feed conversion), egg internal and external qualities (egg shape index, Haugh Unit, air sack, albumin height, egg shell cleanless, egg shell thickness, and egg shell weight). This experiment was run twice according to housing system for each housing temperatures and was completely randomized design. Data was subjected to t-test and descriptive analyses. Productive production and egg quality in both housing systems did not differ. However, the egg weight was significantly heavier in cage system compared to litter system in neutral housing temperature.
Keyword: productive performance, housing temperature, housing system, egg quality

Judul: Penyelesaian Numerik Persamaan Schrödinger untuk Molekul BaO dan SrO Menggunakan Model Potensial Morse
Abstrak: Morse potential is a potential model used to describe the behavior of a molecular vibration between atoms. This study aimed to obtain the value of the dissociation energy, the energy eigenvalues of each energy level, and describe the shape of the wave function of the molecule BaO and SrO on the vibrational state. Dissociation energy is calculated by adding the experimental dissociation energy and the ground state energy eigenvalues. Calculating the energy eigenvalues of the energy levels 0 to 4 using shooting method integrated with Numerov and Runge-Kutta method. Energy eigenvalues of each levels that calculated numerically having accuracy of 100% compared with the calculated analytically. The profil of wave functions accurately show the corresponding states and their normalized wavefunctions.
Keyword: SrO, Morse potential, energy eigenvalues, dissociation energy, BaO