Judul: Identifikasi Protozoa Parasitik Pada Ikan Patin (Pangasius Hypophthalmus) Dan Ikan Mas (Cyprinus Carpio) Dari Bursa Ikan Hias Laladon, Bogor
Abstrak: Protozoa parasitik pada ikan patin (Pangasius hypophthalmus) dan ikan mas (Cyprinus carpio) adalah Trichodina sp., Ichthyophthirius sp. dan Myxobolus sp. Protozoa ini berpotensi menimbulkan kerugian ekonomi dan kematian pada ikan. Penelitian ini dilakukan untuk mengetahui keberadaan protozoa parasitik pada kulit, insang dan usus ikan patin dan ikan mas. Sampel diambil dari Bursa Ikan Hias Laladon, Bogor masing-masing sebanyak 30 ekor. Pemeriksaan kulit, insang dan usus dilakukan dengan metode pemeriksaan natif dan pewarnaan Lugol. Protozoa parasitik diidentifikasi berdasarkan morfologi (ukuran dan bentuk). Jenis protozoa parasitik yang ditemukan pada kulit, insang dan usus adalah Trichodina sp., Ichthyophthirius sp. dan Myxobolus sp. Trichodina sp. ditemukan di organ kulit sebanyak 29 sampel (96.7%) dari ikan patin dan 30 sampel (100%) dari ikan mas. Ichthyophthirius sp. ditemukan di organ insang sebanyak 2 sampel (6.7%) pada ikan patin dan 1 sampel (3.3%) dari ikan mas positif. Myxobolus sp. ditemukan pada organ usus sebanyak 11 sampel (36.7%) dari ikan patin dan 2 sampel (6.7%) dari ikan mas. Trichodina sp. yang ditemukan berdasarkan morfologi adalah Trichodina giurusi.
Keyword: Cyprinus carpio, Pangasius hypophthalmus, protozoa parasitik

Judul: Bakteri dan cacing parasitik pada insang dan saluran pencernaan ikan patin (Pangasius sp.)
Abstrak: The present study was conducted to isolte, culture and identificatify of bacteria and parasitic worm from gills and digestive tract of catfish. A group of 10 of catfish were used, each gills and digestive tract was collected. The parasitic worms were colored with Semichon’s Acetocarmine for permanent staining. Differentiations and characterizations of variants isolate were based on biochemical reactions and Gram staining technique. Parasitic worms that can be identified from gills were Dactylogyrus sp. and Pseudodactylogyrus sp. The laboratory result shows that the gills and digestive tract of catfish were predominantly contaminated with Aeromonas sp. and Staphylococcus epidermidis, followed by Streptococcus sp., Edwardsiella tarda, Escherichia coli, Basillus sp. dan Vibrio cholerae.
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Judul: Pembuatan Sel Surya Berbasis Film Ferroelektrik Barium Strontium Titanate (Ba0,5Sr0,5TiO3)
Abstrak: Growth of films Ba0,5Sr0,5TiO3 (BST) 1 M has been done with variation of annealing in hold time 8 hours, 15 hours, 22 hours, and 29 hours at constant temperature 8500C, above Si (100) substrate p-type, by using the sol-gel process method which followed with spin coating process at 3000 rpm for 30 seconds. Optics spectroscopy shows that BST film solar cells with annealing hold time 8 hours, 15 hours, and 22 hours, works effectively in wavelength ≥ 700 nm absorption range. Yet for sample with annealing hold time about 29 hours effectively absorb in ≤ 700 nm wavelength range. It obtained BST film refractive index at range 2.0 to 7.0 to wavelength range ±370-870 nm. Band gap BST film value based on annealing hold time 8 hours, 15 hours, 22 hours, and 29 hours respectively 2.60 eV; 3.12 eV: 3.24 eV, and 2.66 eV. Electrical conductivity value which obtained, indicate that the BST film is classified as semiconductor material with conductivity order 10-5-10-4 S / cm. The result of I-V photovoltaic characterization shows the BST film potentially to be a solar cells device with efficiency according to the annealing hold time 8 hours, 15 hours, 22 hours, and 29 hours in a row are 2.68x10-5%, 3.51x10-5%, 4.53x10-5% and 3.22x10-5%
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