Judul: Internal Organs Profile of IPB-D1 Chickens Fed Diet Containing Jack Bean Meal (Canavalia ensiformis L.) and Lactic Acid Bacteria in Drinking Water
Abstrak: Penelitian ini bertujuan untuk mengevaluasi pengaruh pemberian tepung koro pedang (Canavalia ensiformis L.) dalam ransum dan bakteri asam laktat dalam air minum terhadap profil organ dalam ayam IPB-D1. Penelitian ini menggunakan rancangan acak lengkap faktorial (2x2). Faktor (1) tepung koro pedang (0%, 20% dalam ransum) dan (2) bakteri asam laktat (0, 107 CFU/ml). Peubah yang diamati adalah jantung, hati, ginjal, timus, bursa Fabricius, limpa, pankreas, empedu, proventrikulus, gizzard, duodenum, jejunum, ileum, sekum dan kolon. Tepung koro pedang nyata (p, This experiment was aimed to evaluation effect of providing jack bean meal (Canavalia ensiformis L.) in diet and lactic acid bacteria in drinking water on the internal organs profile of IPB-D1 chickens. This study used a factorial completely randomized design (2x2). Factors (1) jack bean meal (0%, 20% in diet) and (2) lactic acid bacteria (0, 107 CFU/ml). The variables observed were heart, liver, kidneys, thymus, bursa of Fabricius, spleen, pancreas, gallbladder, proventriculus, gizzard, duodenum, jejunum, ileum, cecum and colon. Jack bean meal significantly (p
Keyword: IPB-D1 chickens, internal organs, jack bean meal, lactic acid bacteria

Judul: The Effect of Vitamin E and Selenium Supplementation towards the Internal Organ Characteristics of IPB-D2 Chickens during Developer-Layer Period
Abstrak: Penelitian ini bertujuan mengevaluasi pengaruh suplementasi vitamin E dan mineral Se dengan komposisi kebutuhan nutrien yang berbeda terhadap kualitas organ dalam Ayam IPB-D2. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) Faktorial 2 x 2 (faktor A untuk jenis rasum dan faktor B untuk suplementasi vitamin E sebanyak 100 ppm dan jumLah mineral Se 1 ppm, masing-masing perlakuan diulang sebanyak lima kali. Peubah yang diamati yaitu bobot potong unggas, bobot dan persentase organ dalam ayam IPB-D2 (hati, jantung, empedu, limfa, ginjal, rampela, thimus, bursa, pankreas, dan proventikulus). Data diolah menggunakan uji ANOVA. Hasil penelitian menunjukkan tidak terdapat interaksi antara pemberian jenis ransum berbeda dan suplementasi vitamin E dan mineral Se terhadap persentase bobot organ dalam. Jenis ransum berpengaruh sangat nyata pada kenaikan persentase bobot empedu (P<0,01), namun pemberian suplementasi vitamin E dan Se tidak berpengaruh nyata pada kenaikan bobot organ tersebut. Sedangkan jenis ransum serta suplementasi vitamin E dan Se berpengaruh nyata pada persentase bobot proventikulus (P<0,05)., This study aimed to evaluate the effect of vitamin E and mineral Se supplementation with different compositions of nutrient requirements on the internal organ quality of IPB - D2 Chickens. The experimental design used in this study was a 2 x 2 factorial completely randomized design (CRD) (factor A for the type of ransum and factor B for vitamin E supplementation of 100 ppm and the amount of mineral Se 1 ppm. Each treatment was repeated as much as five times. The variables observed were slaughter weight of poultry, weight and percentage of internal organs of IPB-D2 chickens (liver, heart, bile, spleen, kidney, rampella, thymus, bursa, pancreas, and proventiculus). The data is processed using the ANOVA test. The results showed there was no interaction between giving different types of rations and vitamin E and mineral Se supplementation on the percentage of internal organ weights. Type of rations had a very significant effect on increasing bile weight (P<0.01), but vitamin E and Se supplementation did not significantly affect the increase in the percentage weight of the organ. While the type of ration and vitamin E and Se supplementation are significantly affected proventiculus percentage weight (P<0.05).
Keyword: IPB-D2 Chickens, Internal Organ, Selenium, Vitamin E

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