Judul: Growth Performance of Common Carp Cyprinus carpio With Four Different Commercial Feeds
Abstrak: Pakan yang diberikan pada ikan mas harus memiliki kandungan nutrien yang dapat dicerna dengan baik oleh ikan mas sehingga ikan mas dapat tumbuh secara optimal. Penelitian ini bertujuan mengevaluasi kinerja pertumbuhan ikan mas (Cyprinus carpio) yang diberi pakan empat merek berbeda dengan kandungan protein yang sama. Penelitian menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan dan tiga ulangan, yaitu pakan komersial A (27,88%), pakan komersial B (27,86%), pakan komersial C (27,94%), dan pakan komersial D (27,85%). Ikan mas yang digunakan memiliki bobot 13,27 ±0,01 g/ekor dengan padat tebar 15 ekor per akuarium, dipelihara selama 50 hari. Parameter yang diamati, yaitu rasio konversi pakan (RKP), tingkat kelangsungan hidup (TKH), jumlah konsumsi pakan (JKP), laju pertumbuhan spesifik (LPS), rasio efisiensi protein (REP), retensi protein (RP), retensi lemak (RL), dan average daily gain (ADG). Pemberian pakan D menunjukkan kinerja pertumbuhan pada ikan mas yang lebih baik dibandingkan dengan pakan lainnya., The feed given to common carp must contain nutrients that can be digested properly by common carp so that common carp can grow optimally. This study aims to evaluating the performance of common carp (Cyprinus carpio) growth when provided with four different brands of feed with the same protein content. The study used a completely randomized design (CRD) with four treatments and three replications, namely commercial feed A (27,88%), commercial feed B (27,86%), commercial feed C (27,94%), and commercial feed D. (27,85%). The common carp used weighed 13,27 ± 0.01 g/individuals with a stocking density of 15 individuals per aquarium, reared for 50 days. Parameters observed were feed conversion ratio (FCR), survival rate (SR), total feed consumption (TFC), specific growth rate (SGR), protein efficiency ratio (PER), protein retention (PR), fat retention (FR), and average daily gain (ADG). D feeding showed better growth performance in common carp compared to other feeds
Keyword: Kinerja pertumbuhan, Ikan mas, Pakan

Judul: Kinerja pertumbuhan ikan mas (Cyprinus carpio) yang diberi pakan komersial berbeda di Waduk Cirata, Jawa Barat
Abstrak: Budidaya yang di intensifikasiikan intensif memerlukan pakan komersial yang berkualitas tinggi dengan, kandungan nutrien yang tepat untuk menunjang pertumbuhan. Penelitian ini bertujuan membandingkan pakan komersial berbeda terhadapkinerja pertumbuhan ikan mas (Cyprinus carpio) yang dipelihara di keramba jarring apung (KJA) di Waduk Cirata, Jawa Barat dengan pemberian pakan komersial berbeda. Penelitian ini menggunakan empat pakan komersial yang berbeda, yaitu:, pakan komersial A (kadar protein ? 28,10%), perlakuan B (kadar protein 28,80%), perlakuan C (kadar protein 28,90%), dan perlakuan D (kadar protein 29,12%). Bobot rata-rata ikan yang digunakan pada awal tebar adalah 23 g, petakan KJA yang digunakan pada KJA berukuran 3 × 3 × 3 m. Frekuensi pemberian pakan adalah tiga kali sehari (08.00, 12.00, 17.00) dengan, pemberian pakan secara at satiation selama 100 hari pemeliharaan. Hasil penelitian menunjukkan bahwa perlakuan D (29,12%) memberikan performa biomassa akhir, bobot rata-rata, laju pertumbuhan spesifik, serta feed cost per gain dan nilai konversi pakan terbaik terendah dibandingkan tiga3 perlakuan lainnya. Berdasarkan hasil penelitian yang diperoleh dapat disimpulkan kinerja pertumbuhan tertinggi didapatkan pada perlakuan pakan komersial DD dengan kadar protein 29,12%., Intensified aquaculture requires high quality commercial feeds that contain the right nutrients to support growth. This study aims to compare different commercial feeds for carp (Cyprinus carpio) reared in floating jarring cages in Cirata Reservoir, West Java. This study used four different commercial feeds, namely, commercial feed A (protein content 28.10%), treatment B (protein content 28.80%), treatment C (protein content 28.90%), treatment D (protein content 29.12%). The average weight of fish used at the beginning of stocking was 23 g. The plot used in the KJA was 3 × 3 × 3 m in size. The frequency of feeding is three times a day (08.00, 12.00, 17.00), feeding at satiation for 100 days of maintenance. The results of the study treatment D (29.12%) gave the best performance of final biomass, average weight, specific growth rate, as well as feed cost per gain and the best feed conversion value compared to the other 3 treatments. Based on the results obtained, it can be concluded that the highest growth performance was obtained in the commercial feed treatment D with a protein content of 29.12%.
Keyword: ikan mas, kadar protein, keramba jaring apung, pakan komersial

Judul: Utilization of terra/MODIS L1B data for analysis of horizontal wind profile in the troposphere
Abstrak: This study was concerned with horizontal wind derived from data collected with the Moderate-resolution Imaging Spectroradiometer (MODIS) on board the NASA’s Earth Observation System (EOS)-Terra satellite. The aim of this study is to develop a method for the estimation of horizontal wind movement in the troposphere based on Navier-Stokes equation. The method was applied to a calibrated and geolocated Terra/MODIS L1B 1 km data set. The data inputs to estimate surface temperature are retrieved from TIR (Thermal Infrared) bands 31 (10.780 μm to 11.280 μm) and 32 (11.770 μm to 12.270 μm). The obtained surface temperatures were later used to approximate geopotential height on a constant-pressure surface by using the modified Poisson equation. The main assumptions used are the hydrostatic equilibrium, ideal gas law, constant lapse rate and constant acceleration of gravity. Based on the distribution of geopotential height, the pressure gradient force is measured by the gradient of geopotential on an isobaric coordinate to present the horizontal wind profile. For certain topographic areas especially in the mountain ranges, there was a disadvantage of using pressure as a vertical coordinate which lead to inaccuracy. In spite of that, Terra/MODIS L1B data with 1 km spatial resolution can be used to estimate the horizontal wind movement in the troposphere.
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