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: Produktivitas, Potensi Dan Strategi Pengembangan Kerbau Belang Di Kecamatan Sanggalangi’, Kabupaten Toraja Utara, Sulawesi Selatan
Abstrak: Spotted buffaloes (Tedong Bonga) is one of local livestock that has the highest value in Torajan’s culture. Population of Torajan's spotted buffalo has been decreasing since several years ago. The aim of this research was to analyze the productivity and reproductivity performances of Torajan’s spotted buffalo. Secondly, to analyze how the potency and development strategy of Torajan's spotted buffalo in Sanggalangi subdistrict, North Toraja. This research was conducted from July to September 2010 in the Sanggalangi’ subdistrict, North Toraja District, South Sulawesi. This research used sampling method were purposive sampling method for subdistrict samples and farmers samples ( 90 farmers). Two kinds of data were obtained in this research. The primary data was collected from the farmers by interview using questioner and observation. The secondary data was collected from North Toraja Livestock and Fishing Departement, Central Statistics Departement, Agricultural Departement and Subdistrict Departement. Data collected were analyzed with descriptive analysis, reproduction characteristic analysis, dynamics of buffalo population analysis, Capacity of Additional Ruminant Population (CARP) analysis, and SWOT (strength, weaknesses, opportunities, and threats) analysis. The result showed that as follow : the ratio between male and female was 1:3; first oestrus was at 2,48 years of age with the average duration of heat about 22,6 hours and the oestrous cycle about 18.5 days. The first conception occured at 2.87 years with the gestation period about 387,4 days. Birth rate and calf crop were relatively high: 89% and 77%. The difference of birth rate and calf crop caused mortality about 2,35%. Service per conception (S/C) was 1,85 time and conception rate was 86,5%. CARP estimation showed that Sanggalangi’ subdistrict’s CARP value was negative. The strategies formula of development spotted buffalo is turnaround strategies or stability of weaknesses and opportunities.
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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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