Judul: Produksi dan Morfometrik Ayam Persilangan Pelung Ras Pedaging dengan Sentul Kampung dan Resiprokalnya Umur 0-12 Minggu.
Abstrak: This research aimed to explore the production and morphometry of reciprocal crossed between pelung-broiler (PB) and sentul-kampung (SK) chickens age 0-12 weeks old. Commercial starter feed was offered at the age of 0- 3 weeks, 80% commercial starter feed + 20% rice hull at the age of 4 weeks and 60% commercial starter feed + 40% rice hull at the age of 5-12 weeks. Feed was ad libitum. The research used completly randomized design (RAL). Productive traits measured were body weight, growth rate, feed intake, feed conversion and mortality. Morphometry traits measured were length of shank, back, beak, width of breast and girth of breast. Body weight, growth rate, feed intake, feed conversion, width of breast, back, beak and volume of the body were not significant. Meanwhile, length of shank and girth of breast differed. PBSK and SKPB can be developed as meat type chickens.
Keyword: PBSK chicken, SKPB chicken, morphometry, productivity

Judul: Performa F1 antara Ayam Sentul X Kampung dan Ayam Pelung X Sentul pada Umur 0-12 Minggu
Abstrak: The experiment aimed to observe growth performance of 3 native chicken crossed. The materials used in this experiment were 22 day old chick (DOC) resulted of natural mating between male pelung and female sentul chicken (PS) and 113 DOC resulted of natural mating between male sentul and female kampung chicken (SK). Feeds were given during experiment divided into 3 phases that were BR-21E 100% for chicken between 0-3 weeks of age, rice bran 20% and BR-21E 80% for 4 week age, and grower feeds rice bran 40% and BR-21E 60% for chicken between 5-12 weeks. Variables which recorded weekly were body weight until 12 weeks of age, weight gain, feed consumption, feed conversion, and mortality. The t-test was used to compare data of performance between two sexes and between two cross system (PS and SK). The results showed that body weight at 12 weeks of crossbred (PS) male was significantly higher than SK (P<0.01) also female (P>0.05). Feed consumption and feed conversion were not significantly different (P>0.05). The mortality rate during the experiment were 4.54% for crossbred PS and 7.07% for SK. SK and PS can be applied to increase meat production.
Keyword: performance, sentul chicken, pelung chicken, kampung chicken

Judul: Sintesis Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) dengan Variasi Konsentrasi Sulfur pada Substrat Kaca ITO
Abstrak: Film tipis Cu2ZnSnS4 (CZTS) merupakan bahan alternatif semikonduktor sebagai lapisan penyerap cahaya pada sel surya. CZTS dapat menggantikan senyawa silikon yang biasa digunakan sebagai bahan penyusun semikonduktor komersial. Kelebihan CZTS sebagai lapisan penyerap cahaya ialah ketersediaan bahan yang berlimpah di alam dan nilai koefisien absorpsi yang tinggi. Film tipis CZTS dibuat dengan variasi konsentrasi larutan sulfur menggunakan metode sol- gel dan spin coating sederhana pada substrat kaca inidium timah oksida (ITO). Setelah itu, film dikeraskan pada suhu 550 °C, selama 60 menit dengan dialiri gas N2. Difraktogram sinar X menunjukkan bahwa film tipis CZTS yang terbentuk dari kedua sampel memiliki struktur kristal kasterit dengan persentase yang kecil dibandingkan literatur. Sampel dengan konsentrasi sulfur 6M memiliki jumlah persen kristal yang lebih tinggi, yaitu 13,257% dengan ketebalan film 3,726–4,732 µm, sedangkan sampel dengan konsentrasi 3M memiliki persentase 7,538%. Sampel film tipis CZTS dengan konsentrasi sulfur 6M memiliki energi celah pita sebesar 1,876 eV dan nilai koefisien absorpsi sebesar 29,49 × 104 cm-1 menunjukkan hasil terbaik dan sesuai dengan kriteria film tipis CZTS komersil.
Keyword: CZTS thin films, ITO glass, Semiconductors, Sol-gel, Spin coating