Judul: Comparison of Carcass and Non-Carcass Weight  Percentage between IPB-D2 Chickens and IPB-D3 Chickens at Different Slaughter  Age
Abstrak: Ayam IPB-D1 sebagai rumpun baru ayam lokal merupakan upaya meningkatkan mutu genetik ayam lokal Indonesia. Ayam IPB-D2 dan IPB-D3 keturunan ayam IPB-D1 diseleksi untuk dijadikan calon indukan ayam IPB-D1 unggul. Penelitian ini bertujuan menambah informasi, mengkaji, dan membandingkan persentase bobot karkas dan non-karkas pada galur ayam IPB-D2 dan IPB-D3 pada umur potong berbeda. Ayam yang digunakan sebanyak 30 ekor untuk masing masing galur. Peubah yang diamati yaitu bobot dada, paha atas, paha bawah, sayap, punggung, kepala, leher, ceker, hati, usus, rempela, dan jantung. Data yang diperoleh dianalisis dengan uji deskriptif dan uji t. Hasil penelitian menunjukkan persentase bobot karkas ayam jantan IPB-D2 G4 lebih kecil dibandingkan dengan ayam jantan IPB-D3 G2. Persentase bobot non-karkas ayam jantan IPB-D2 G4 lebih besar dari ayam jantan IPB-D3 G2. Ayam IPB-D3 memiliki peluang yang unggul sebagai calon galur pejantan dan ayam penghasil daging. Ayam IPB-D2 memiliki peluang yang unggul sebagai calon galur betina., The IPB-D1 chicken as a new species of local chickens is an effort to improve the genetic quality of Indonesia's local chickens. Chicken IPB-D2 and IPB-D3 incubators of chicken IPB-D1 were selected for special breed chicken IPB-D1. The study aims to add information, review, and compare the percentage of weight of carcass and non-carcass in chicken galleys IPB-D2 and IPB-D3 at different cut ages. Chickens used up to 30 chickens each. The observed change was the weight of the chest, upper thigh, lower thigh, wing, back, head, neck, neck, claw, liver, intestines, and heart. Data obtained was analyzed with a descriptive and t-test results showing a percentage of cock weight in IPB-D2 G4 cock was smaller than the IPB-D3 G2 cock. Non-carcass a cock IPB-D2 G4 was greater than a cock IPB-D3 G2. The chicken IPB-D3 has a distinct chance of becoming a male and flesh-producing hen. The IPB-D2 chicken has an excellent opportunity as a female trowel.
Keyword: carcass weight, IPB-D2 line chicken, IPB-D3 line chicken, non-carcass  weight

Judul: Carcass Percentage, Commercial Cuts, and  Non-Carcass Parts of IPB-D3 Chickens at Different Slaughter Ages and Locations
Abstrak: Ayam lokal memiliki ketahanan tubuh yang lebih tinggi dibandingkan dengan ayam ras. Ayam IPB-D3 merupakan calon galur baru pejantan (male line) yang dibentuk dari hasil seleksi ayam IPB-D1 G7 berdasarkan pertumbuhan bobot badan yang cepat pada umur 12 minggu. Pertumbuhan bobot badan yang cepat dapat dipengaruhi oleh genetik dan lingkungan. Penelitian ini bertujuan mengevaluasi persentase karkas, potongan karkas secara komersial dan bagian non karkas pada ayam IPB-D3 pada umur potong dan lokasi berbeda, yaitu Sukabumi, Bogor, dan Boyolali. Penelitian ini menggunakan ayam IPB-D3 Sukabumi sebagai data primer dan ayam IPB-D3 Bogor dan Boyolali sebagai data sekunder pembanding, masing-masing berjumlah 30 ekor. Berdasarkan hasil yang didapat adalah ayam IPB-D3 Sukabumi memiliki persentase karkas yang lebih rendah dibandingkan dengan ayam IPB-D3 Bogor dan Boyolali, akan tetapi bagian persentase non karkas ayam IPB-D3 Sukabumi lebih tinggi dibandingkan dengan ayam IPB-D3 Bogor dan Boyolali, Local chickens have higher immune resilience compared to commercial breeds. IPB-D3 chickens are a new male line strain created by selecting IPB-D1 G7 chickens based on their rapid body weight growth at 12 weeks. Tight body weight growth can be influenced by genetics and the environment. This research aims to evaluate the carcass percentage, commercially cut carcass pieces, and non-carcass parts of IPB-D3 chickens at different ages and locations, namely Sukabumi, Bogor, and Boyolali. The study utilizes IPB-D3 Sukabumi chickens as primary data and IPB-D3 Bogor and Boyolali chickens as secondary comparative data, with each group comprising 30 individuals. Based on the results, it is found that IPB-D3 Sukabumi chickens have a lower carcass percentage compared to IPB-D3 Bogor and Boyolali chickens. However, the percentage of non-carcass parts in IPB-D3 Sukabumi chickens is higher than in IPB-D3 Bogor and Boyolali chickens
Keyword: Carcass percentage, Non-carcass percentage, IPB-D3 chicken

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