Judul: Perfomans Produksi Babi Akibat Tingkat Pemberian  Manure Ayam Petelur dm Asam Amino L-Lisin Sebagai Bahan  Pakan Alternatif
Abstrak: Manure ayam petelur segar yang dihasilkan oleh seekor ayam, rata-rata 150 gram/hari, mempunyai kandungan protein kasar sekitar 30% dengan pembatas serat kasar yang tingg, energi metabolis rendah, NPN (Nitrogen Bukan Protein) yang tinggi, bakteri patogen, jamur, sisa pestisida, sisa obat-obatan sehmgga pada ternak monogastrik yang mengkonsumsinya dapat menghambat pertumbuhan. Asam amino lisin merupakan asam amino pembatas dalam ransum babi, karena kandungan asam amino ini terbatas pada tanaman biji-bijian, akan tetapi asam amino lisin telah dapat dibuat secara sintetis, dalam bentuk L-lisin monohldrokhlorat dengan kemurnian 98% asam amino lisin.
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Judul: Peforma Produksi dan Kadar Amonia Ekskreta Ayam Petelur yang Diberi Tambahan Ulat Tepung dan Probiotik
Abstrak: Telur ayam merupakan salah satu bahan pangan yang banyak dikonsumsi di Indonesia. Produksi telur dipengaruhi beberapa faktor salah satunya adalah pakan dan air minum. Ulat tepung memiliki kandungan protein tinggi dan asam amino lengkap. Probiotik berperan sebagai penghambat pertumbuhan bakteri yang merugikan dan meningkatkan produktifitas. Penelitian ini bertujuan untuk mengetahui performa produksi dan kadar amonia ekskreta pada ayam petelur. Peubah yang diamati adalah produktivitas meliputi bobot telur, hen day production, konsumsi pakan, konversi pakan, dan analisis kadar amonia ekskreta. Penelitian ini menggunakan rancangan acak lengkap pola factorial dengan pemberian pakan tepung ulat tepung sebagai faktor pertama dan probiotik sebagai faktor kedua, setiap perlakuan ada 12 ulangan. Hasil penelitian menunjukan bobot telur, konsumsi pakan, serta konversi pakan, analisis kadar amonia tiap perlakuan berbeda nyata (P<0.05), kecuali hen day production dan tidak ada interaksi antar perlakuan terhadap hasilnya. Kadar amonia pada ekstreta ayam pada pemberian pakan dan probiotik memberikan hasil yang paling tinggi pada perlakuan penambahan ulat tepung 6% karena semakin meningkat protein pakan menyebabkan kadar amonia semakin tinggi. Pemberian probiotik dalam air minum dapat menurunkan kadar amonia eksreta ayam. Konversi pakan yang paling kurang efisien diperoleh pada ayam yang mendapat perlakuan kontrol.
Keyword: ayam petelur, kadar amonia, performa produksi, probiotik

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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