Judul: Performa Obesitas  Monyet Ekor Panjang (Macaca fascicularis) yang Diberi Pakan Berenergi  Tinggi
Abstrak: The aim of this research was to found obesity performances of long-tailed macaques (Macaca fascicularis) which fed with high energy diet. Two groups of five adult males (average body weight 4-6 kg) were treated by three types of high energy diets (A treatment, B treatment and C treatment). Body measurements which observed were crown-rump length; the circumferences of calf (of leg), thigh, hip, waist, chest, arm, and head; thicks of meta-tarsale and meta-carpale; skin fold thickness of arm, back, and stomach; body weight and body mass index (BMI). Data were analyzed by ANOVA, with nested design. The result showed that obesity performances of long-tailed macaques which fed with high energy diet were significantly (P<0.01) for circumferences of hip, waist and chest; skin fold thickness of back and stomach; body weight and body mass index. Body mass index of long-tailed macaques on treatment high energy diet with raw material tallow and yolks indicated became pre- obese with base on Asia people BMI standard with BMI’s average 24.85.
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Judul: Profil Darah Monyet Ekor Panjang (Macaca Fascicularis) Yang Diberi Pakan Berenergi Tinggi Pada Periode Obesitas Empat Bulan Kedua
Abstrak: The aim of this research was to observe Macaque’s (Macaca fascicularis) blood and get information of the haematology. This research was done during four months with four times collected, at IndoAnilab, Taman Kencana, Bogor and were analysed in pathology and lipid laboratory of primate centre, Pusat Studi Satwa Primata (PSSP), Bogor. Macaca fascicularis were being fed with three kinds of diets. Two kinds were high energy diet with different composition, both with tallow but one with yolk egg and the other one with monkey chow. There were fifteen adult males M. fascicularis and every five monkeys got different maintenance. This research observed erythrocytes number (million/ml), haemoglobin concentration (g/dl), hematocrit value (%), Mean Corpuscular Volume (MCV), Mean Corpuscular Haemoglobin (MCH), Mean Corpuscular Haemoglobin Concentration (MCHC) the differentiations of leucocytes (eosinophil, neutrophil, basophil, lymphocyte and monocyte). The results of this research were high energy diet extremely significant (P<0.01) affected in erythrocytes number, haemoglobin concentration, hematocrit value, MCV and MCH. Periods nested in treatment extremely significant (P<0.01) affected in erythrocytes number, haemoglobin concentration, hematocrit value, MCHC and significant (P<0.05) affected in monocyte. Positive relationship was present between erythrocytes number, haemoglobin concentration and hematocrit value as well as MCV, MCH and MCHC. Negative relationship was present between lymphocyte and neutrophil. The highest influence showed in high energy diet with tallow and yolk egg. Keywords: haematology, high energy diet and long-tailed macaque (Macaca fascicularis)
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Judul: Sintesis nanopartikel Cu2ZnSnS4 menggunakan teknik hidrotermal
Abstrak: Nanopartikel Cu2ZnSnS4 (CZTS) merupakan semikonduktor yang berpotensi sebagai fotokatalis untuk reaksi fotodegradasi zat pewarna. Semikonduktor ini memiliki sela pita yang jauh lebih kecil dibandingkan dengan semikonduktor TiO2, sehingga memungkinkan dapat berkerja hanya dengan paparan sinar matahari. Nanopartikel Cu2ZnSnS4 telah berhasil disintesis menggunakan teknik hidrotermal dengan suhu 200 oC selama 24 jam. Larutan Cu2ZnSnS4 dinetralkan menggunakan amonium hidroksida dan dialiri gas N2 sebelum proses hidrotermal. Hasil analisis mikroskop elektron pemayaran menunjukkan nanopartikel Cu2ZnSnS4 mengalami aglomerasi karena memiliki ukuran partikel yang besar. Hasil analisis difraktogram sinar-X menunjukkan bahwa Cu2ZnSnS4 yang dihasilkan memiliki struktur kesterit dengan senyawa fase sekunder yang terbentuk adalah CuS, ZnS, dan Cu2SnS3. Hasil uji fotodegradasi menunjukkan bahwa senyawa hasil sintesis memiliki kemampuan degradasi dibawah sinar matahari lebih baik dibandingkan dengan TiO2. Namun, pada paparan sinar UV, TiO2 mendegradasi biru metilena lebih baik daripada senyawa hasil sintesis. Kapasitas adsorbsi terhadap biru metilena sebesar 2.6780 mg/g menunjukkan bahwa senyawa hasil sintesis tidak mampu mengadsorpsi dengan baik, sehingga disimpulkan bahwa hilangnya biru metilena dari larutan disebabkan oleh fotodegradasi, bukan oleh adsorpsi
Keyword: band gap, Cu2ZnSnS4, kesterite, photocatalyst, semiconductor