Judul: Sifat Fisik dan Organoleptik Daging Ayam Broiler yang Diberi Pakan dengan Penambahan Tepung Daun Sambiloto
Abstrak: Indonesia merupakan negara dengan jumlah penduduk terbesar ketiga setelah Cina dan India. Jumlah penduduk yang besar ini merupakan sumber daya potensial untuk pemasaran hasil ternak. Produk peternakan merupakan bahan pangan yang mewah dan merupakan bahan pangan yang penting dalam hal pemenuhan gizi masyarakat. Salah satu alternatif yang memungkinkan dengan melakukan budidaya ayam broiler, karena selain memerlukan waktu yang relatif cepat juga memerlukan luasan kandang/lahan yang relatif kecil. Upaya ini perlu didukung oleh adanya terobosan baru agar tingkat pertumbuhan ayam broiler semakin tinggi sehingga dapat memenuhi permintaan protein (daging) yang semakin tinggi.
Keyword: 

Judul: Sifat Fisikokimia Daging Ayam Broiler dengan Pemberian Pakan Tepung Maggot (Hermetia illucens).
Abstrak: Ayam broiler merupakan jenis ternak unggas yang memiliki pertumbuhan relatif cepat dengan umur panen 4-5 minggu. Komponen terpenting dalam pakan ayam broiler adalah protein. Sumber protein alternatif saat ini dibutuhkan untuk memenuhi kebutuhan ternak akan asam amino. Tepung maggot memiliki kandungan protein hingga 48% sehingga dapat dijadikan sebagai sumber protein pada pakan ayam broiler. Penelitian ini bertujuan untuk melihat pengaruh penggunaan tepung maggot terhadap sifat fisikokimia daging ayam broiler. Penelitian ini menggunakan rancangan acak lengkap (RAL), bahwa taraf perlakuan yang digunakan adalah R0 = 0%, R1 = 2.5%, R3 = 5%, dan R4 = 7.5%, dengan 5 ulangan. Parameter yang diamati adalah nilai pH, daya mengikat air, susut masak, keempukan, kadar air, kadar abu, kadar lemak, dan kadar protein. Hasil dari penelitian ini adalah daging ayam yang diuji memiliki DMA 35.80%-36.98%, pH 5.18-5.79, susut masak 37.32%-47.02%, keempukan 3.22-3.68, kadar air 73.85%- 76.12%, kadar abu 1.44%-1.62%, kadar lemak 0.33%-0.65%, dan kadar protein 20.18%-21.08%. Hasil penelitian menunjukkan penggunaan tepung maggot dengan taraf berbeda tidak memberikan pengaruh (P>0.05) terhadap DMA, keempukan, kadar abu, kadar lemak, dan kadar protein. Penelitian ini menunjukkan bahwa penggunaan tepung maggot tidak memengaruhi kualitas dari daging ayam broiler, sehingga dapat dijadikan sebagai sumber alternatif pakan ayam broiler.
Keyword: broiler, daging, sifat fisikokimia, tepung maggot

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: