Judul: Variasi morfologi ayam kampung jantan dewasa
Abstrak: Gallus domesticus is native chicken which had been domesticated from wild chicken. In Indonesia, they usually called ayam kampung. Morphology of different kinds of ayam kampung is imuniform because they were result of interbreeding from many kinds of wild chickens. This research was conducted to study morphology variation of mature male native chicken using morphometric methods.
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Judul: Genetic Observation of the External Body of Local Breed Chickens (Gallus gallus domesticus) in Various Districts
Abstrak: Ayam kampung (Gallus gallus domesticus) merupakan ayam asli Indonesia yang pada saat ini telah tercemar dengan gen ayam ras unggul Eropa terutama ayam yang dipelihara secara ekstensif tradisional. Penelitian ini bertujuan menghitung keaslian ayam kampung di berbagai wilayah kecamatan di Kabupaten Kulon Progo dan Kabupaten Bogor. Karakteristik genetik eksternal yang diamati adalah warna bulu, pola bulu, corak bulu, kilau bulu, warna shank, dan bentuk jengger. Karakteristik tersebut dianalisis menggunakan analisis frekuensi gen dominan dan resesif otosomal, analisis frekuensi gen alel ganda, analisis frekuensi gen dominan dan resesif tertaut seks, analisis frekuensi kandungan gen ayam kampung asli Indonesia, dan analisis frekuensi gen asli. Hasil penelitian menunjukkan ayam kampung di Kecamatan Galur, Kecamatan Panjatan, Kecamatan Megamendung, dan Kecamatan Cibungbulang memiliki tingkat keaslian kurang dari 50%. Ayam kampung di Kecamatan Cibungbulang memiliki tingkat keaslian paling rendah, sedangkan ayam kampung di Kecamatan Panjatan memiliki tingkat keaslian paling tinggi pada penelitian ini., Kampong chicken (Gallus gallus domesticus) is an indigenous Indonesian chicken that is currently contaminated with genes of European superior breeds of chickens, especially chickens that are reared extensively traditionally. This study aims to quantify the authenticity of native chickens in various districts in Kulon Progo Regency and Bogor Regency. The external genetic characteristics observed were feather color, feather pattern, feather pattern, feather luster, shank color, and cockscomb shape. These characteristics were analyzed using autosomal dominant and recessive gene frequency analysis, double allele gene frequency analysis, sex-linked dominant and recessive gene frequency analysis, gene content frequency analysis of Indonesian native chickens, and native gene frequency analysis. The results showed that native chickens in Galur Subdistrict, Panjatan Subdistrict, Megamendung Subdistrict, and Cibungbulang Subdistrict had an authenticity level of less than 50%. The native chicken in Cibungbulang subdistrict has the lowest level of authenticity, while the native chicken in Panjatan subdistrict has the highest level of authenticity in this study.
Keyword: Ayam kampung, keragaman, frekuensi gen, kualitatif

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4