Judul: The Use of Jack Bean (Canavalia ensiformis L.) in Feed and its Effect on Carcass Percentage, Non-Carcass Percentage, and Immune Organs in Broiler Chickens
Abstrak: Tujuan penelitian ini adalah menganalisis pengaruh pemberian ransum dengan kacang koro pedang terhadap persentase bobot karkas, non karkas, dan organ imunitas. Penelitian ini menggunakan ayam broiler betina CP dengan total 250 ekor. Ayam dibagi menjadi 4 perlakuan yang terdiri 6 kali ulangan, yaitu P0: Pakan komersial, P1: Pakan kontrol, P2 : Pakan dengan penggunaan 5% kacang koro pedang, P3 : Pakan dengan penggunaan 10% kacang koro pedang. Parameter yang diukur adalah persentase karkas, persentase non karkas, dan organ imunitas ayam broiler. Data dianalisis dengan analysis of variance (ANOVA), jika hasil berpengaruh nyata, maka dilanjutkan dengan uji Duncan. Hasil analisis ragam menunjukkan penambahan kacang koro pedang dalam substisusi bungkil kedelai dalam pakan tidak berpengaruh nyata (P>0,05) terhadap persentase karkas, kepala, kaki, organ imunitas, bursa fabrisius, timus, dan limpa ayam broiler. Disimpulkan bahwa pemberian pakan 10% kacang koro pedang olahan dapat mensubtitusi penggunaan bungkil kedelai dalam pakan ayam broiler dan memberikan hasil yang baik pada persentase karkas, kepala, kaki, bursa fabrisius, timus, dan limpa., This research aimed to analyze the effect of feeding a feed with jack bean on the percentage of carcass weight, non-carcass weight, and immune organs in broiler chickens. The study used 250 female CP 707 broiler chickens. There were 4 treatments with 6 replications: P0 - Commercial feed, P1 - Control feed, P2 - feed with 5% processed jack bean meal, and P3 - feed with 10% processed jack bean meal. The measured parameters included carcass percentage, non-carcass percentage, and broiler chicken immune organs. The data were analyzed using analysis of variance (ANOVA), and if the analysis results were statistically significant, Duncan's test was conducted. The analysis of variance showed that the addition of jack bean in soybean meal substitution did not have a significant effect (P>0.05) on the carcass percentage, head percentage of broiler chickens, leg percentage, immune organ weight percentage, bursa of fabrisius weight percentage, thymus weight percentage, and average lymph weight percentage. However, feeding with 10 processed jack bean yielded favorable results.
Keyword: carcass, immune organ, jack bean, non carcass

Judul: Physical, Chemical Quality, and Metabolizable Energy of Jack Beans (Canavalia ensiformis L.) with the Addition of Protease and Non-Starch Polysaccaride Enzymes
Abstrak: Penelitian ini bertujuan mengkaji kualitas fisik dan kimia serta mengevaluasi penggunaan dari kacang koro utuh (Canavalia ensiformis L.) dengan penambahan enzim NSP dan protease terhadap nilai energi metabolis (EM) dan kecernaan protein. Ternak yang digunakan adalah ayam broiler jantan strain Cobb berumur 35 hari sebanyak 20 ekor dengan rataan bobot badan 2,1 kg ekor-1. Penelitian ini menggunakan rancangan acak lengkap (RAL) yang dibagi ke dalam 4 perlakuan dan 4 ulangan. Perlakuan yang diberikan pada penelitian ini adalah P0 = Tepung kacang koro dengan kulit yang sudah melalui proses perendaman, perebusan, dan pengeringan; P1 = P0+enzim protease; P2 = P0+enzim NSP; P3 = P0+enzim protease+enzim NSP. Analisis yang diggunakan adalah Analysis of Variance (ANOVA) dan uji lanjut Duncan menggunakan program SPSS 25. Hasil pengukuran energi metabolis pada perlakuan P1, P2, dan P3 menunjukan hasil nyata (P<0,05) lebih tinggi dibandingkan perlakuan P0. Penambahan enzim NSP dan protease pada bahan pakan dapat meningkatkan nilai energi metabolis pada ayam broiler, The purpose of this experiment to evaluate the physical and chemical quality of jack beans (Canavalia ensiformis) in broiler rations with the addition of NSP and protease enzymes on the value of metabolizable energy (ME) and protein digestibility. Twenty heads of 35-day-old male Cobb strain broiler chickens with an average body weight of 2,1 kg were used in this experiment. The study used a completely randomized design (CRD) with 4 treatments and 4 replicates. The treatments used in this study were P0 = Jack beans flour that had been soaked, boiled, and dried; P1 = P0+protease enzyme; P2 = P0+NSP enzyme; and P3 = P0+protease enzyme+NSP enzyme. Analysis of Variance (ANOVA) and Duncan's further test were used in the SPSS 25 program. The metabolizable energy measurements in the P1, P2, and P3 treatments were significantly (P<0.05) higher than in the P0 treatment. The addition of NSP and protease enzymes to feed ingredients can increase metabolizable energy.
Keyword: energi metabolis, enzim NSP, enzim protease, kacang koro pedang, kecernaan protein

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