Judul: Tingkah Laku Ingestive dan Seksual serta Agonistik Puyuh Jantan (Coturnix-coturnix japonica) pada Kepadatan Kandang yang Berbeda
Abstrak: Quail have considerable potential as a producer of eggs. Some of them likes C.japonica can spawn more than 300 points in one year at the first production. Quail livestock production can developed optimally in good maintenance management. Factors of stocking density, sex ratio and behavior could be affected to egg production. The subject of this research was to determine the optimal stable density on the behavior of quail. There were three treatment in this research, first density (there was 4 male and 8 female), second density (there was 5 male and 10 female) and third density (there was 6 male and 12 female). The treatment production indicated that the P1 and P2 showed the greatest frequency of sexual was 0,11, P2 showed the greates frequency of agonistic was 0,07 and Ingestive behavior was 7,13. The most highest sexual behavior frequency was showed at stocking density P1 and P2. The most highest agonistic behavior frequency at stocking density P2 and the most highest Ingestive behavior frequency at stocking density P3.
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Judul: Persentase Karkas dan Karkater Sensori Puyuh (Coturnix-coturnix japonica) Jantan dan Betina yang Dipelihara pada Kepadatan Kandang yang Berbeda
Abstrak: Stocking density in one of important environmental factor which is needed to be considered in generating good production and carcass quality of Japanese quail (Coturnix-coturnix japonica). This study aimed to determine the most optimal stocking density in breeding farm to produce good quail carcass and investigate the effect of various stocking density on the colour and the aroma of meat quail. Sixty female and 45 male of Japanese quails were used in this study. The optimum male ratio between female Japanese quail was estabilished by 1:2. The quails were kept in cages with a stocking density of 12 birds, 15 birds, and 18 birds on 62 x 50 x 26 cm cages and each level of treatment consisted of 3 replications. Feed was given 20 g/ quail per day. Water was provided ad libitum. All traits of carcass characteristics were not different, but there were differences (P<0.05) between colour of male and female meat quail. The quails were kept in cages with a stocking density of 18 birds was the most optimum condition to produce good carcass quail.
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Judul: Komposit Polisulfon Tersulfonasi-Montmorilonit Untuk Aplikasi Membrane Electrode Assembly Direct Methanol Fuel Cell.
Abstrak: Membran merupakan salah satu komponen penting dalam aplikasi direct methanol fuel cell (DMFC), yang berfungsi sebagai sarana penukar proton. Penelitian bertujuan membuat dan mencirikan komposit polisulfon tersulfonasi-montmorilonit (sPSf-mont) untuk aplikasi membrane electrode assembly (MEA) DMFC. Membran polisulfon tersulfonasi dibuat menggunakan oleum pada suhu 40 oC. Kesuksesan sulfonasi dicirikan dengan derajat sulfonasi sebesar 32.63%, ditambah pada spektrum spektrofotometer inframerah transformasi fourier menunjukkan serapan –SO3 di area 1110-1350 cm-1 dan 2000-1667 cm-1. Montmorilonit dikompositkan dengan 2 ragam konsentrasi, yaitu 2% dan 3%. Didapatkan sPSf-mont 3% sebagai membran dengan daya serap air dan titik leleh tertinggi 28.75% dan 553.51 oC. Pengukuran konduktivitas dan uji aplikasi DMFC menunjukkan MEA sPSf-mont 3% sebagai membran dengan konduktivitas dan beda potensial tertinggi, yaitu berturut-turut 11.1280 mS/cm dan 114.1 mV. Tambahan komposit dan modifikasi MEA telah meningkatkan konduktivitas proton membran dengan komposisi terbaik adalah MEA sPSf-mont 3%.
Keyword: MEA, montmorilonit, polisulfon tersulfonasi, sel bahan bakar