Judul: Analisis Reproduksi dan Potensi Kerbau di Kecamatan Cikalongkulon Kabupaten Cianjur
Abstrak: Cikalongkulon district has potential to develop buffaloes business because this region widely used for rice fields and plantations. The purpose of this research was to analyze the performance of buffalo reproduction, potential improvement, and farmer’s income from buffalo business. Buffalo reproduction performance known by doing interviews, the results that obtained were: 2.32+0.73 years old for the first puberty, 2.53+0.70 years old for the first conception, 3.47+0.72 years old for the first calving, 54.23+30.62 days period of estrous cycle, 4.00+3.89 hari days of estrous cycle, 11.95+0.20 months of gestation time, estrous and conception after 4,00+3.89 months partus, and 1.96+0.47 months of calving interval. Population of buffalo can still be improved, according to Capacity of Additional Ruminant Population (CARP) value of Cikalongkulon district as much as 121.49 AU. Farmers that own buffalo by themselves received the highest income, especially in scale 6-10 head. The highest income is Rp23.793.500.
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Judul: Karakteristik reproduksi Kerbau Lumpur (Bubalus bubalis) dan kualitas pakannya pada ketinggian yang berbeda di Kabupaten Cianjur
Abstrak: Development of Indonesian swamp buffalo productivity is less encouraging. Field of observations results, low productivity of buffalo caused by the relatively low reproductive efficiency. Contributory factor in increasing reproductive efficiency, among other ensure the availability of forage high quality. Buffaloes maintenance, highly dependent on the availability of natural forage, based on low or high plateau, because a traditionally. Height difference led to the availability forage high quality be diffirent, so can affect characteristic in reproductive efficiency. Characteristic observation of reproductive were analyzed by first oestrous, pregnancy period, postpartum unoestrous and body condition score. Buffalo at low and high plateau had characteristics of reproduction was not a different, but in terms of body condition score, buffalo at high plateau of relatively better with supported quality forage more than exemplary, lenght of season with availability, and comfort zone.
Keyword: Bogor Agricultural University (IPB), reproduction buffalo, quality forage, body condition score

Judul: Sintesis Bahan Piezoelektrik Ba0.5Na0.5TiO3 – BaTiO3 dan Penambahan Gd2O3 dengan Metode Solid State Reaction
Abstrak: The synthesis of lead – free piezoelectric BNT – BT and addition Gd2O3 have done using solid state reaction. Synthesis of BNT – BT get a perovskite struktur with variation of % mol BT 3%, 7%, 12%. Diffraction pattern of 7% BT showed two peak ((002) and (200)) overlapping that is indicate transformation of phase from rhombohedral to tetragonal (MPB). Synthesis BNT – BT with addition Gd2O3 also a get perovskite struktur with variation of % weight Gd2O3 0.4%, 0.7%, 1%, 3%, 6%. Diffraction pattern of 0.4% Gd2O3 showed overlapping peak. At this komposition happen phase change from rhombohedral to tetragonal. At 0.4% - 0.7% komposition happen down significan point of c/a that is indicate in the komposition MPB of BNT – BT – Gd2O3
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