Judul: Keberadaan Ektoparasit pada Gurame Osphronemus goramy Yang Dibudidayakan Secara Tradisional Serta Analisis Korelasi Aspek Biologi Inang-Parasit
Abstrak: Parasites belong to one of causative agent of infection diseases in goramy O. goramy. This study aimed to classifying the ectoparasites and analyze the correlation of biological aspects of host-parasite in goramy O. goramy from traditional farming. In this study, 348 fishes in sizes were used as the samples. The fishes were taken randomly from 71 traditional goramy farmers from seven sub districts in Bogor. The ectoparasites identified as Digenean Metacercaria, Chilodonella sp., Copepode, Dactylogyrus sp., Gyrodactylus sp., Glochidia, Henneguya sp., Icthyophthirius multifiliis, Tetrahymena sp., Trichodina sp., Oodinium sp., Piscinoodinium sp. , and Trematode. There are closed correlation between the body length with the presence of parasites in fish, whereas the Health Assessment Index (HAI) was not closely related with the number of ectoparasites found.
Keyword: correlation index, Osphronemus goramy, goramy, parasite

Judul: Studi Histopatologi Insang, Usus Dan Otot Ikan Gurami (Osphronemus gouramy) Akibat Infestasi Parasit Protozoa Di Desa Carangpulang Dramaga Bogor
Abstrak: The aim of the research was to find out the histopathological lesions of gouranzy fish gills, intestines, and muscles from Carangpulang Village Bogor. Fifteen fishes about a year old wlere used as sample in this research. Histopathological examination was done by lzenzatoxiilin and eosin stain (HE). Microscopically, gill was the izostc ommon organ with pathological lesions. Gill was ofen infected by flagellum protozoa parrrsites, such as Ichthyobodo sp, Myxozoa (Hennegujla sp and Myxobolus sp) and unidentified protozoa. In intestines, no specijic pathological change was found, while in muscle tissue hyaline and vacuola degenerations as well as necrotic lesions were commonly detected. Based on all findings mentioned above, the lesion of gill fishes were inzcted by protozoa Ichthyobodo sp and myxozoa which can cause ichthyobodosis. Moreover, we suggest that a non infectious agent such as chemical polutans as one of the caused of oedema, telangiectasis and thickening of lamella of the gills.
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Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar