Judul: Infeksi Cacing Gastrointestinal pada Harimau Sumatera (Panthera tigris sumatrae) di Taman Margasatwa Ragunan
Abstrak: The aim of this research was conducted to investigate the prevalence values and the intensity of infection of gastrointestinal helminths from Sumatran Tigers (Panthera tigris sumatrae) in Ragunan Zoo. A total of 26 individual stool samples were collected from 26 tigers at 4 areas. These samples were examined using modified McMaster, simple floatation, and modified sedimentation techniques based on sex and age group. The result showed that the identified helminth eggs were Toxocara cati and Toxascaris leonina (Ascarid) and also Ancylostoma tubaeforme (Strongylid). There were 25 (96%) of the examined animals infected by Ascarid (96%) and Strongylid (68%). All male tigers (100%) were infected by Ascarid and 64% were infected by Strongylid. There were 83% female tigers infected by Ascarid and 67% infected by Strongylid. The prevalence of the age group of <5, 5-10, and >10 years old, consecutively indicated that 100%, 91%, and 83% were infected by Ascarid and 67%, 64%, and 67% were infected by Strongylid. The highest intensity of Ascarid infection (10625 EPG) was found in females while the highest intensity of Strongylid infection (3650 EPG) was found in males. Those intensity of infection were found in the age group of <5 years old.
Keyword: Bogor Agricultural University (IPB), Sumatran tiger, Ragunan zoo, gastrointestinal helminths

Judul: Infeksi cacing gastrointestinal pada Macan Tutul Jawa (Panthera pardus melas) di Pusat Penyelamatan Satwa Cikananga dan Situgunung Park
Abstrak: Javan leopard (Panthera pardus melas Cuvier, 1809) is an endemic species of Indonesia that can only be found in Java island. This species is stated as critically endangered, so that the conservation act is needed to save Javan leopard. The objective of this research is to identify and determine the infection and the intensity of the gastrointestinal helminths in Javan leopard from Pusat Penyelamatan Satwa Cikananga (PPSC) and Situgunung Park, Taman Nasional Gunung Gede Pangrango (TNGGP). Four individual stool samples were collected from PPSC on Januari-Februari 2014 and 3 stool samples were collected from Situgunung Park, TNGGP on May 2013 and March-June 2014. All samples were examined using modified McMaster, flotation, and modified sedimentation techniques. The result showed that all samples were infected by gastro-intestine helminths. The identified helminths were strongylids (85,71%), trichurid and ascarids (57,14%) and Strongyloides (28,57%). The range of eggs per gram (EPG) varied from <50-8825 EPG. The highest count were found in strongylid (<50- 8825 EPG) in PPSC, followed by trichurid (<50-3750 EPG) in PPSC and Strongyloides (700-1100 EPG) in SGP. The lowest count was ascarid (<50 EPG) which was found in PPSC and SGP.
Keyword: Bogor Agricultural University, gastrointestinal helminths, Javan leopard, EPG

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: sifat optik, litium niobat, chemical solution deposition, kecepatan putar