Judul: Daerah jelajah dan penggunaan ruang Kukang Jawa (Nycticebus javanicus) di Taman Nasional Gunung Halimun Salak Jawa Barat
Abstrak: The Javan slow loris (Nycticebus javanicus) is a slow moving nocturnal prosimian primate. Javan slow lorises are considered Critically Endangered by the International Union for the Conservation of Nature (IUCN 2013), as well as being listed in Appendix I of Convention on International Trade in Endangered Species (2007). To date, there is limited source information available regarding wild loris ecology and behavior. In this study, home range areas and use space of wild javan slow loris was carried out in Mount Halimun-Salak National Park, in Bogor, West Java, Indonesia. This study aims to measure home range size and to analyze activity budgets in natural forest conditions. Kernel Home range methods were used to analyze home range areas, while Point Centered Quarter methods were used to collect habitat data, and five minute Instantaneous-Focal Animal Sampling was used to observe and record behavioral data. The observed lorises were two adult females, one of which (Individual I) was pregnant. Analysis showed contiguous home range sizes of 5.43 hectares and 5.58 hectares for Individuals I and II respectively, as well as a core home range area of 1.77 hectares and 1.60 hectares. These home ranges were larger than that reported in Malaysian Nycticebus coucang. Behavioral analysis showed that daily activities were dominated by travel, feeding, active, and foraging, which took place primarily in the lower canopy stratum (2 – 15 m), whereas sleeping typically occurred in the medium canopy stratum height (15 – 22 m). The use of space of javan slow loris correlated with height, substrat, contact, and size of branch. Javan slow loris preferred heights positions (5 – 7 m), and the size of a small twig branch categories. Javan slow loris preferred to use kaliandra (Calliandra calothyrsus), bungbuai (Plectomia elongata), and kisampang (Evodia latifolia) as foraging site and sleeping tree.
Keyword: Bogor Agricultural University (IPB), lower canopy, kernel home range, sleeping tree, Core area

Judul: Perilaku Harian Kukang Jawa (Nycticebus javanicus Geoffroy 1812) di Taman Nasional Gunung Halimun Salak (TNGHS) Jawa Barat
Abstrak: Javan slow loris (N. javanicus) is an endangered species however ecological data and information about its life in nature is limited. According to the IUCN, javan slow loris is one of the critical wildlife status (critically endangered) and listed on Appendix I of CITES since 2007. This study aimed to investigate daily activities of N. javanicus and to assess correlation between climate, moon phase and daily activities of javan slow loris in the Mount Halimun Salak National Park (MHSNP) West Java. Behavioral observations was carried out using a modified method of focal time sampling. Principal Component Analysis (PCA) was used to determine the correlation between the climatic aspects and daily activities. Behavioral observations was conducted on two wild adult females. The most dominant of daily activities N. javanicus were travelling (37.9%), feeding (21.8%), active (12.5%) and foraging (12.3%). N. javanicus preferred natural food items such as nectar (79.9%), sap (16.6%), insects (3.0%) and fruits (0.5%). Correlation climate aspect and moon phase of the daily activities N. javanicus was 59.3%. Phases of the moon gave impact mostly on the daily activities. Nycticebus javanicus is a primate lunar phobia or likely to be active in slightly or no light conditions (dark).
Keyword: Bogor Agricultural University (IPB), javan slow loris, Nycticebus javanicus, daily activities, TNGHS

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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