Judul: A comparison behaviours in slow loris (nycticebus coucang) at two captivities
Abstrak: Slow loris is an Indonesian original tropic animal, which is endangered. Its status in Indonesia is as protected animal because its population has decreased. According to CITES data, the status of Slow loris is Appendix II (lower risk), therefore the conservation through captivity is needed. The aim of this research is to obtain informations about daily and specific behaviour which are important for cultivation is feeding's behaviour.
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Judul: Feeding Behavior Analysis of Slow Lorises (Nycticebus coucang) at The Primate Research Center (PRC) IPB
Abstrak: Pusat Studi Satwa Primata (PSSP) IPB merupakan lembaga konservasi ex-situ yang memfasilitasi penangkaran dan penelitian pada primata, salah satunya adalah kukang (Nycticebus coucang). Evaluasi kesejahteraan kukang di penangkaran dapat dilakukan dengan menganalisis perilaku makan dengan metode focal animal sampling melalui rekaman video CCTV. Tujuan dari penelitian ini adalah mengetahui perilaku makan kukang di Pusat Studi Satwa Primata (PSSP) IPB. Hasil penelitian menunjukkan perilaku makan memiliki proporsi yang relatif kecil dibanding perilaku lainnya. Perilaku makan dilakukan pada sore hingga pagi hari. Lokasi yang digunakan kukang untuk makan antara lain sarang, cabang pohon, atap kandang, serta lantai kandang. Kukang cenderung melakukan perilaku makan di cabang pohon. Pakan yang diberikan pada kukang terdiri atas telur ayam rebus, pisang, pepaya, dan air minum. Pakan yang teramati paling banyak dimakan oleh kukang adalah pisang. Pola perilaku makan yang dapat teramati, diantaranya pergerakan mendekati pakan, posisi makan, cara memegang pakan, cara makan, serta pergerakan menjauhi pakan., The Primate Research Center (PRC) IPB is an ex-situ conservation institution which facilitates captive breeding and research for primates, one of which are slow lorises (Nycticebus coucang). Evaluation of the welfare of slow lorises in captive breeding performed by analyzing the feeding behavior with focal animal sampling method through CCTV video recordings. The aim of this study was to determine the feeding behavior of slow lorises at the PRC IPB. The results showed that the feeding behavior had a relatively smaller proportion than other behaviors. The feeding behavior was carried out in the afternoon until morning. The locations used by slow lorises to eat were nests, tree branches, cage roofs, and cage floors. The slow lorises tend to eat on tree branches. The feeds given to slow lorises consist of boiled eggs, bananas, papayas, and drinking water. The feeds observed eaten the most by slow lorises were bananas. The feeding behavior patterns that could be observed, include movement towards the feeds, feeding positions, how to hold the feeds, how to eat, and movement away from the feeds.
Keyword: animal welfare, captive breeding, CCTV, evaluation, focal animal sampling

Judul: Gamma Ray Irradiation on UHMWPE and HDPE to Increase Tibial Tray Mechanical Properties
Abstrak: Ultrahigh molecular weight polyethylene (UHMWPE) is a polymer that is widely used in the manufacture of tibial tray, but it is very expensive. Therefore, high density polyethylene (HDPE) was developed for the manufacturing of tibial tray because the price is lower and has similar properties to UHMWPE. HDPE was made by two methods, namely hot pressing method and heating method, but UHMWPE wass made only by hot pressing method. Tibial tray film of HDPE and UHMWPE from both methods were irradiated with various doses of gamma rays 0, 100, 200, 300 and 500 kGy. The polymers were analyzed for surface microstructure, hardness , tensile strength, elongation at break percentage, and degree of crystallinity. The higher the dose of irradiation the higher the hardness and the degree of crystallinity, but not for the tensile strength and elongation at break percentage. Both polymers were not able to increase mechanical properties in those irradiation doses range because crosslink formation is inhibited by the presence of oxygen that causes chain scission. HDPE hardness enhancement by hot pressing method was close to
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