Judul: Identifikasi dan Karakterisasi Plasmodium Pada Beruk (Macaca nemestrina) di Pusat Studi Satwa Primata IPB
Abstrak: Beruk (Macaca nemestrina) merupakan salah satu satwa primata yang saat ini populasinya di alam mengalami penurunan. Penyakit yang dapat menyerang satwa, khususnya pada primata adalah malaria yang disebabkan oleh Plasmodium sp.. Penelitian ini bertujuan mempelajari morfologi Plasmodium sp. pada beruk (Macaca nemestrina) melalui teknik ulas darah. Penelitian ini juga membedakan presentase sel darah putih (leukosit) antara beruk yang terinfeksi dan yang tidak terinfeksi Plasmodium sp. Sampel darah diambil dari total 24 ekor beruk pada satu populasi penangkaran untuk pemeriksaan Polymerase Chain Reaction (PCR) dan dilanjutkan dengan pemeriksaan hematologi. Data dianalisis secara deskriptif dan statistik. Analisis deskriptif pada masing-masing sampel menunjukkan darah beruk yang terinfeksi Plasmodium sp. sudah mencapai stadium skizon. Analisis statistik menunjukkan tidak ada perbedaan nyata antara beruk yang positif dan negatif Plasmodium sp.., Southern pig-tailed macaque (Macaca nemestrina) is one of the primates whose population in nature is currently decreasing. One of the diseases that can attack animals, especially primates, is malaria caused by Plasmodium sp.. This study aims to determine the morphology of Plasmodium sp. on macaques (Macaca nemestrina) through the blood smear technique. In addition, this study also differentiates the percentage of white blood cells (leukocytes) between infected and uninfected monkeys with Plasmodium sp. Blood samples were taken from 24 macaques in one captive population for Polymerase Chain Reaction (PCR) examination and continued with hematological examination. Data collection was carried out by examining a blood sample in the form of a blood smear. Data were analyzed descriptively and statistically. A Descriptive analysis on each sample showed the blood of monkeys infected with Plasmodium sp. had reached the schizont stage. Statistical analysis showed that there was no significant difference between positive and negative Plasmodium sp..
Keyword: beruk, malaria, Plasmodium sp., sel darah putih, ulas darah

Judul: Identifikasi Molekuler Plasmodium sp. pada Macaca fascicularis dan Macaca nemestrina di Penangkaran Eksitu Jawa Barat
Abstrak: Plasmodium is a protozoan parasite that caused malaria which transmitted through the bite of an infected mosquito. A total of 27 (11.70%) positive parasites out of 316 blood samples of Macaca fascicularis and 18 positive samples from 166 blood samples of M. nemestrina were identified by microscopic examination. The objective of this study was to determine species specific based on molecular analysis using primer specifics to detect P. knowlesi, P. inui, P. fieldi, P. coatneyi and P. cynomolgi through nested Polymerase Chain Reaction, The results showed 8 out of 27 samples were positive for P. inui in M. fascicularis, whereas in M. nemestrina from 18 blood samples only 2 were positive for P. inui. The rest of microscopic positive samples were negative to the other 5 primer specifics. Based on these results, Macaca species from ex-situ captive breeding colony in West Java were positive for P. inui and this confirmed the potential zoonotic disease of Plasmodium species from M. fascicularis and M. nemestrina.
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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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