Judul: Morphometrics of IPB-D1, IPB-D2 and IPB-D3 Chickens aged 4 to 12 weeks at Sinar Harapan Farm Sukabumi
Abstrak: Ayam IPB-D1 adalah ayam lokal pedaging unggul hasil pemuliaan. Pengembangan ayam IPB-D1 menghasilkan calon galur ayam IPB-D2 dan IPB-D3. Penelitian mengenai morfometrik ayam IPB-D di Kabupaten Sukabumi belum dilakukan. Penelitian ini bertujuan mengevaluasi morfometrik ayam IPB-D1, IPBD2 dan IPB-D3 di Kabupaten Sukabumi. Rancangan pada penelitian ini adalah Rancangan Acak Lengkap dengan 3 taraf perlakuan galur yaitu IPB-D1, IPB-D2 dan IPB-D3 dengan selang kepercayaan 95%. Perlakuan yang berpengaruh nyata dilanjutkan uji Tukey. Parameter yang diukur adalah bobot badan dan morfometrik seperti panjang shank, lingkar shank, panjang femur, panjang tibia, panjang dada, lebar dada, dalam dada, lingkar dada, dan panjang punggung. Hasil penelitian menunjukkan bahwa ukuran tubuh ayam IPB-D2 dan IPB-D3 berbeda. Ayam IPBD3 memiliki morfometrik yang lebih besar dibandingkan ayam IPB-D2 pada umur 4-8 minggu, namun pada umur 10-12 minggu ayam IPB-D3 memiliki ukuran tubuh yang lebih kecil dibandingkan ayam IPB-D2. / IPB-D1 chicken is a local breeder of superior broilers. The development of IPB-D1 chicken produced the candidate strains IPB-D2 and IPB-D3. Research on the morphometrics of IPB-D chicken in Sukabumi district has not been conducted. This study aimed to evaluate the morphometrics of IPB-D1, IPB-D2 and IPB-D3 chickens in Sukabumi District. The design of this study was a completely randomized design with 3 levels of treatment strains namely IPB-D1, IPB-D2 and IPB-D3 with 95% confidence interval. Treatments that had a significant effect were followed by the Tukey test. Parameters measured were body weight and morphometrics such as shank length, shank circumference, femur length, tibia length, breast length, breast width, breast depth, breast circumference and back length. The results showed that the body size of IPB-D2 and IPB-D3 chickens were different. IPB-D3 chickens have larger morphometrics than IPB-D2 chickens at 4- 8 weeks of age, but at 10-12 weeks of age IPB-D3 chickens have a smaller body size than IPB-D2 chickens., IPB-D1 chicken is a local breeder of superior broilers. The development of IPB-D1 chicken produced the candidate strains IPB-D2 and IPB-D3. Research on the morphometrics of IPB-D chicken in Sukabumi district has not been conducted. This study aimed to evaluate the morphometrics of IPB-D1, IPB-D2 and IPB-D3 chickens in Sukabumi District. The design of this study was a completely randomized design with 3 levels of treatment strains namely IPB-D1, IPB-D2 and IPB-D3 with 95% confidence interval. Treatments that had a significant effect were followed by the Tukey test. Parameters measured were body weight and morphometrics such as shank length, shank circumference, femur length, tibia length, breast length, breast width, breast depth, breast circumference and back length. The results showed that the body size of IPB-D2 and IPB-D3 chickens were different. IPB-D3 chickens have larger morphometrics than IPB-D2 chickens at 4- 8 weeks of age, but at 10-12 weeks of age IPB-D3 chickens have a smaller body size than IPB-D2 chickens.
Keyword: morfometrik, ayam IPB-D1, ayam IPB-D2, ayam IPB-D3, Kabupaten Sukabumi

Judul: Morphometrics of Fifth Prospective Generation IPB D2 Chickens Aged 4 to 12 Weeks
Abstrak: Ayam IPB-D2 merupakan ayam lokal hasil seleksi ayam IPB-D1 yang ditujukan untuk memiliki keunggulan tahan penyakit, pertumbuhan cepat, dan mampu beradaptasi pada lingkungan tropis. Penelitian ini bertujuan mengkaji dan mengevaluasi ukuran tubuh ayam IPB-D2 generasi kelima umur 4 sampai 12 minggu. Peubah yang diukur mencakup panjang shank, lingkar shank, panjang femur, panjang tibia, panjang dada, lebar dada, dalam dada, lingkar dada, panjang punggung, panjang sayap. Data peubah diukur setiap 2 minggu dan dianalisis secara deskriptif dan uji-t. Hasil penelitian menunjukkan 3 dari 10 peubah meliputi lingkar shank, panjang dada, dan dalam dada memiliki ukuran yang lebih rendah dibandingkan ayam IPB-D2 G4. Koefisien keragaman ayam IPB-D2 G5 pada umur 12 minggu berkisar 4,56%-9,79%. Nilai koefisien tersebut menunjukkan populasi yang sudah mendekati seragam dari segi karakteristik ukuran sehingga ayam IPB-D2 G5 bisa diajukan sebagai calon galur., IPB-D2 chickens are local chickens resulting from IPB-D1 chicken selection, which are intended to be disease-resistant, fast-growing, and able to adapt to tropical environments. This study aims to study and evaluate the body size of fifth-generation IPB-D2 chickens aged 4 to 12 weeks. The variables measured include shank length, shank circumference, femur length, tibia length, chest-length, chest width, chest depth, chest circumference, back length, and wing length. Variable data was measured every 2 weeks and analyzed descriptively and analyzed by t-test. The results showed that 3 out of 10 variables including shank circumference, breast length, and chest depth were lower than IPB-D2 G4 chickens. The diversity coefficient of IPB-D2 G5 chickens at 12 weeks of age ranges from 4.56% to 9.79%. This coefficient value shows that the population is nearly uniform in terms of size characteristics, which means IPB-D2 G5 chickens can be proposed as a candidate strain.
Keyword: IPB-D2 chickens, selection, morphometrics, crossing

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