Judul: Karkas Dan Potongan Komersial Ayam Hasil Persilangan Antara Ayam Pelung Dengan Merawang
Abstrak: Peningkatan pengetahuan dan kesadaran akan pentingnya protein hewani terutama untuk pertumbuhan mengakibatkan semakin meningkatnya pennintaan terhadap produk peternakan khususnya daging ayam. Salah satu kekurangan dan pengembangan ayatn buras adalah rendahnya populasi karena sistem pemeIiharaan yang masih tradisional. Sementara, konsumen di Indonesia I~bih menyukai rasa daging ayam yang berasal dari ayam buras dibandingkan dengan ayam ras. A.yam Pelung dan Merawang merupakan ternak lokal yang berpotensi sebagai penghasil daging. P. .. yalTI Pelung yang dikembangkan di daerah CiapJuf memiIiki pertulnbuhan yang cepat dan produksi daging yang baik. Ayam Mera\vang yang banyak dipelihara di Pulau Bangka memiliki potensi yang baik untuk dikembangkan sebagai ayam pedaging Inaupun pete!uf. Salah satu eara yang dapat dilakukan untuk Inengembangkan sektor petemakan ayam buras adalah me!akukan persilangan antar dua galur ayam buras lersebut. Karkas adalah bagian dari tubuh ayam setelah dipotong !anpa darah, bulu, kepala. kaki, leher dan organ daiam. TJrnumnya karkas dibagi !agi menjadi beberapa bagian, disebut dengan potongan karkas komersial yaitu terdiri atas potongan paha, dada, punggung dan sayap. Pemotongan karkas menjadi potongan komersial dapat meningkatkan daya jual.
Keyword: 

Judul: Kualitas Karkas Ayam Silangan antara Ayam Merawang dengan Ayam Arab Generasi Ketiga Umur 12 Minggu
Abstrak: Meningkatnya tingkat konsumsi daging di Indonesia menjadi acuan bagi peternak di Indonesia, khususnya peternak ayam lokal untuk berpartisipasi dalam mengembangkan kualitas ayam lokal. Penelitian ini bertujuan mengkaji bagian potongan komersial karkas, bagian edible, dan non edible dari karkas, ayam hasil silangan tetua merawangarab dan arabmerawang pada generasi ketiga dengan komposisi genetik persilangan 75% merawang dan 25% arab (75% M), dan 50% merawang serta 50% arab (50% M) pada umur 12 minggu. Analisis secara deskriptif digunakan untuk menyajikan rataan, simpangan baku, dan koefisien keragaman dan Uji T. Hasil yang diperoleh bahwa rataan semua komponen non karkas ayam tidak berbeda, ayam jantan 50% M memiliki bobot potong, potongan komersial, bagian edible (dada, paha atas, dan paha bawah), serta non edible paling berat. Bobot potong ayam betina 50% M dengan 75% M berbeda nyata (P<0.05) sebesar 887 g, dan 744.2 g. Kualitas karkas ayam jantan 50% M paling baik, sehingga baik untuk dikembangbiakan.
Keyword: ayam arab, ayam merawang, potongan komersial, karkas

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.
Keyword: