Judul: Peran kelompok peternakan rakyat ayam kampung Sukabumi pada usaha ayam kampung
Abstrak: Usaha ayam kampung tidaklah seintensif usaha ayam ras. Selain itu proses usaha ayam ras pedaging dilakukan dengan waktu yang lebih cepat dibandingkan ayam kampung. Produksi ayam kampung dibedakan menjadi dua yaitu produksi daging dan produksi telur. Upaya penigkatan produksi daging ayam kampung dilakukan melalui kegiatan kelompok. Salah satu kelompok yang mengembangkan usaha ini adalah kelompok peternakan rakyat ayam kampung Sukabumi (KEPRAKS). Pada umumnya kegiatan yang dilakukan secara kelompok akan meminimalkan biaya produksi per unit output menjadi lebih kecil dibandingkan dengan pengusahaan secara perorangan.
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Judul: Studi usaha peternakan ayam ras petelur rakyat model koperasi, kasus koperasi peternak unggas KPU "Putera Bakti" Sawangan Kabupaten Bogor
Abstrak: Pengembangan peternakan ayam ras telah ditempuh oleh pemerintah dengan berbagai usaha pembinaan dengan sasaran utama adalah peternak kecil dan menengah. Tujuan usaha ini adalah untuk meningkatkan pendapatan peternak, sehingga diharapkan kebutuhan dasar dan gizi masyarakat terpenuhi. Kerangka landasan kerja pembangunan peternakan ayam ras mulai Pelita IV lebih dititikberatkan pada usaha peternakan rakyat dan koperasi. Dengan demikian dibutuhkan kemampuan keduanya agar usaha ini berhasil.
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Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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