Judul: External Quality of Silver Brakel Kriel Egg by  Giving Mealworm Meal as Supplement Feedstuff
Abstrak: Ayam arab silver adalah jenis ayam petelur yang dikenal memiliki efisiensi pakan yang baik dan performa bertelur yang tinggi. Kualitas telur ayam arab silver dapat ditingkatkan dengan memberikan pakan yang kaya nutrien. Ulat hongkong adalah serangga yang tersebar di seluruh dunia. Ulat hongkong dapat digunakan secara komersial sebagai pengganti sumber protein konvensional, karena diketahui mengandung tinggi protein kasar, lemak, termasuk omega-3 dan 6. Penelitian dilakukan untuk menganalisis kualitas eksternal telur ayam arab silver yang diberi tepung ulat hongkong sebagai bahan pakan suplementasi. Penelitian ini menggunakan 36 telur dari ayam arab silver berusia 30-34 minggu, yang dibagi menjadi 2 perlakuan, dengan 6 ulangan dan 3 telur tiap ulangan. Kualitas eksternal telur diuji dua kali, pada minggu kedua dan keempat. Ransum perlakuan terdiri dari P0 = 100% ransum kontrol dan P1 = ransum yang mengandung 4% ulat hongkong. Data dianalisis menggunakan metode Uji T independen. Analisis data menunjukkan adanya peningkatan dalam kualitas eksternal telur, pada warna kuning telur dan persentase bobot kerabang. Penambahan 4% tepung ulat hongkong tidak mempengaruhi indeks telur, berat telur, Haugh unit, berat kerabang, ketebalan kerabang, persentase albumen, dan kuning telur., Silver brakel kriel are a breed of laying hens known for their excellent feed efficiency and egg-laying performance. The quality of silver brakel kriel eggs can be enhanced by providing them with a nutritious diet. Mealworm is an insect that distributed worldwide. Mealworms could be commercially used to supplement conventional protein, since they contain high crude protein and fat, including omega-3 and 6. Research was conducted to determine the external quality of eggs from silver brakel kriel fed with mealworm meal as a supplement feedstuff. This study used 72 eggs out of 30-34 weeks of silver brakel kriel chickens, divided into two treatments, six repetition, and three eggs per repetition. The external quality of eggs was tested two times, on the second and fourth week. The treatment ration consisted of P0 = 100% control ration and P1 = ration containing 4% mealworm meal. Data were analyzed using the Independent Sample T-Test method. Data analysis showed increased egg’s external quality, specifically in the yolk colour and shell weight pecentage. Adding 4% mealworm meal did not affect to egg index, egg weight, Haugh unit, shell weight, shell thickness, albumen and yolk percentage.
Keyword: ayam arab silver, kualitas eksternal telur, ulat hongkong

Judul: The Utilization of Mealworm as a Substitute Feed on Arabic Chicken (Gallus turcicus) with Different Varieties
Abstrak: Telur merupakan sumber protein hewani yang paling tinggi nilai biologisnya, dapat diartikan sumber protein yang mudah dicerna. Ayam arab merupakan ayam petelur unggul dengan produksi telur ayam tinggi yaitu 190-250 butir/tahun. Penelitian ini bertujuan menganalisis performa produksi ayam arab petelur dengan pemberian pakan mengandung ulat Hongkong (Tenebrio molitor L.) berdasarkan warna yang berbeda. Penelitian menggunakan 60 ekor ayam arab petelur gold, 60 ekor ayam arab petelur silver dengan pemberian pakan yang mengandung 4% ulat hongkong, 6 ulangan dan setiap ulangan terdapat 10 ekor ayam. Data dianalisis dengan menggunakan metode uji-t. Penelitian ini menghasilkan pemberian pakan dengan 4% ulat hongkong menunjukkan performa ayam arab silver yang lebih baik pada parameter konsumsi pakan, hen house production (HHP), dan massa telur terhadap ayam arab gold. Parameter konversi pakan dan bobot telur memiliki nilai yang relatif sama antara ayam arab gold dan silver., Eggs are source of animal protein that has the highest biological value, which is recognized as a digestible protein source. Arabic chicken are the superior laying hens with high egg production, that is 190-250 eggs/year. This study aims to analyze the production performance of brakel kriel by giving a feed that contain the mealworm (Tenebrio molitor L.) based on different colors. This study used 60 gold arabic chicken, 60 silver arabic chicken with feed that contained 4% mealworms, 6 repetitions and each repetition had 10 chickens. The data were analyzed using the t-test method. This study resulted in feeding with 4% mealworms showed the better silver arabic chicken performance on feed consumption parameters, hen house production (HHP), and egg mass against gold brakel kriel. The feed conversion parameters and egg mass had relatively the same values between gold and silver arabic chicken.
Keyword: arabic chicken, feed, mealworm meal, production performance

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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