Judul: Gastrointestinal Helminth Infections in Small Ruminants at PT Jonggol Mitra Amanah, Bogor
Abstrak: Ternak ruminansia kecil seperti kambing dan domba merupakan usaha budidaya ternak yang umum digemari masyarakat Indonesia. Salah satu faktor penting yang perlu diperhatikan dalam memelihara ternak kambing dan domba adalah faktor kesehatan, di antaranya infeksi cacing saluran pencernaan. Penelitian ini bertujuan mengidentifikasi jenis dan mengukur derajat infeksi cacing saluran pencernaan pada kambing dan domba di PT Jonggol Mitra Amanah, Kabupaten Bogor. Pemeriksaan sampel tinja menggunakan metode kualitatif yaitu pengapungan sederhana dan modifikasi filtrasi sedimentasi, serta metode kuantitatif yaitu McMaster. Pemupukan tinja dilakukan untuk mengidentifikasi jenis larva infektif strongylid dan Strongyloides. Jenis cacing saluran pencernaan yang ditemukan pada kambing dan domba di PT Jonggol Mitra Amanah adalah Strongyloides sp., Haemonchus sp., Trichostrongylus sp., Oesophagostomum sp. Selain jenis tersebut, pada kambing ditemukan juga Moniezia sp. Tingginya derajat infeksi dan tingkat prevalensi cacing disebabkan oleh sistem pemeliharaan semiintensif, lingkungan peternakan yang sesuai untuk perkembangan cacing, serta pengulangan pemberian obat anthelmintik yang belum efisien., Small ruminant such as goats and sheep are commonly herbivore livestocks kept by farmer in Indonesia. An important factor to be considered in maintaining goats and sheep is their health, including gastrointestinal helminth infections. This study aims to identify the types and measure the degree of gastrointestinal helminth infections in goats and sheep at PT Jonggol Mitra Amanah, Bogor. Fecal samples were analyzed using a combination of qualitative techniques, specifically simple flotation and modified sedimentation filtration. Additionally, a quantitative method called McMaster was also used in the analysis. Fecal culture was performed to obtain infective strongylid and Strongyloides larvae for further identification. The gastrointestinal helminths found in goats and sheep at PT Jonggol Mitra Amanah were Strongyloides sp., Haemonchus sp., Trichostrongylus sp., and Oesophagostomum sp. In addition, Moniezia sp. was also found in goats. The heavy infection degree and high prevalence of helminthiasis were caused by semiintensive farming system, suitable environment for worms, and inefficient repetition of anthelmintic administration.
Keyword: cacing saluran pencernaan, derajat infeksi, ruminansia kecil

Judul: Gastrointestinal Nematode and Coccidia Infection of Sheep at Sugih Mukti Sheep Farm Group, Neglasari Village, Dramaga, Sub District, Bogor Regency. Supervised
Abstrak: Small ruminant farming is important for Indonesian agricultural productivity. Gastrointestinal parasites harm sheep production systems by causing weight loss decreasing in reproductive performance and death. The distribution of gastrointestinal parasite on sheep worldwide and found in all regions of Indonesia. The purpose of this research was to identify and measure the prevalence and intensity of gastrointestinal nematode and coccidian infection on sheep at Sugih Mukti Sheep Farm Group, Neglasari Village, Dramaga, Sub District, Bogor Regency. Fecal samples were collected from 43 sheep from Sugih Mukti Sheep Farm Group. Samples were examined for gastrointestinal parasites using the flotation method, modified McMaster method, and continued by making fecal culture to obtain and identify infective larvae of strongyle. The results of the study showed that the prevalence of strongyle and coccidia infection of sheep on the Sugih Mukti farm was 60.5% and 100% respectively. Prevalence of strongyle infection occurs in 1/8 males (12.5%) and in 25/35 females (71.4%). Prevalence of strongyle occurs in 7/22 young (31.8%) and in 19/21 females (90.4%). Prevalence of coccidia is in all 43 samples for both gender and age. The prevalence of strongyle based on both gender and age were showing the significant difference (P≤0.05) for each category respectively. The average intensity of infection for strongyle in gender and age showed a significant difference (P≤0.05). The average intensity of infection for coccidia in age showed a significant difference (P≤0.05), but showed no significant difference in gender (P≥0.05).
Keyword: Coccidia, Domba, Nematoda, Parasit gastrointestinal, Strongyle

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