Judul: Morphometric of IPB-D3 Chicken First Generation Ages 2 to 12 Weeks
Abstrak: Rumpun ayam IPB-D1 adalah contoh rumpun ayam yang telah dilakukan upaya peningkatan mutu genetik. Rumpun ayam IPB-D1 memiliki pertumbuhan yang cepat dan ketahanan tubuh yang baik terhadap penyakit Newcastle Disease (ND) atau Tetelo dan Salmonella sp. Seleksi ayam IPB-D1 berdasarkan pertumbuhan bobot badan yang cepat untuk mendapatkan calon galur ayam IPB-D3 (male line). Tujuan dari penelitian ini untuk menilai ukuran tubuh ayam IPB-D3 generasi pertama umur 2 sampai 12 minggu. Jumlah ayam yang digunakan sebanyak 6 jantan dan 34 betina indukan sedangkan untuk anakan yaitu 10 jantan dan 52 betina. Data dianalisis deskriptif dan uji t. Ukuran tubuh ayam IPB-D3 generasi pertama umur 2 sampai 12 minggu tidak memiliki perbedaan yang nyata bila dibandingkan dengan ukuran tubuh ayam IPB-D1 generasi ketujuh. Koefisien keragaman berkisar antara 3,42% sampai 11,13% dan termasuk dalam kategori sedang. Peubah yang paling baik untuk menduga pertumbuhan atau bobot badan adalah panjang dada dengan nilai korelasi 0,987 untuk jantan dan 0,988 untuk betina., Strain of IPB D-1 is a local example of chicken that has made an effort to improve mutual genetics. Strain of IPB-D1 has rapid growth and adaptability and against Newcastle Disease or tetello and Salmonella Sp. Selected IPB-D1 chickens based on growth of bodies to get the next generation of IPB-D3 (male line). The purpose of this study was to assess the body size of the first generation of IPB-D3 chickens aged 2 to 12 weeks. The number of chickens used were as many as 6 males and 34 females, 10 males and 52 females. The data were analyzed by descriptive test and t test. The body size of the first generation IPB-D3 chickens aged 2 to 12 weeks did not have a significant difference when compared to the body size of the seventh generation IPB-D1 chickens. The coefficient of variation ranges from 3.42 to 11.13%. This value is included in the medium category. The best variable for predicting growth or body weight was chest length with a correlation value of 0.987 for males and 0.988 for females. Strain of IPB D-1 is a local example of chicken that has made an effort to improve mutual genetics. Strain of IPB-D1 has rapid growth and adaptability and against Newcastle Disease or tetello and Salmonella Sp. Selected IPB-D1 chickens based on growth of bodies to get the next generation of IPB-D3 (male line). The purpose of this study was to assess the body size of the first generation of IPB-D3 chickens aged 2 to 12 weeks. The number of chickens used were as many as 6 males and 34 females, 10 males and 52 females. The data were analyzed by descriptive test and t test. The body size of the first generation IPB-D3 chickens aged 2 to 12 weeks did not have a significant difference when compared to the body size of the seventh generation IPB-D1 chickens. The coefficient of variation ranges from 3.42 to 11.13%. This value is included in the medium category. The best variable for predicting growth or body weight was chest length with a correlation value of 0.987 for males and 0.988 for females.
Keyword: IPB-D3 line chicken, Morphometrics, Selection

Judul: Body Morphometric of IPB-D2 Chicken Third Generation Ages 2 to 12 Weeks
Abstrak: Ayam lokal memiliki potensi untuk dikembangkan di Indonesia. Ayam IPBD1 merupakan rumpun baru ayam lokal yang sedang dikembangkan untuk mendapatkan produktivitas yang baik. Ayam IPB-D1 memiliki daya adaptasi terhadap lingkungan cukup baik dan ketahanan tubuh yang baik terhadap penyakit Newcastle Disease (ND) atau tetelo dan salmonellosis. Oleh karena itu, dilakukan seleksi ayam IPB D-1 berdasarkan immunocompletence untuk membentuk calon galur ayam IPB-D2 (female line). Tujuan dari penelitian ini adalah untuk mengkaji dan mengevaluasi keseragaman bobot badan dan ukuran-ukuran tubuh pada ayam IPB-D2 G3. Jumlah ayam yang digunakan sebanyak 100 ekor. Penelitian dilakukan pada bulan September 2021 hingga bulan Januari 2022 di Laboraturium Lapang Pemuliaan Genetika Ternak, Fakultas Peternakan, IPB. Peubah yang diamati adalah panjang punggung, panjang dada, lebar dada, lingkar dada, dalam dada, panjang shank¸lingkar shank, panjang femur, dan panjang tibia. Data dianalisis deskriptif dan uji t. Hasil penelitian menujukkan ayam IPB-D2 G3 memiliki koefisien keragaman tinggi. Laju pertumbuhan ayam IPB-D2 G3 cenderung fluktuatif
Keyword: coefficient of variant, growth rate, IPB-D2 lines chicken, morphometrics

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition