Judul: Performa Domba Betina yang Diberi Pakan Tinggi Energi dan Protein Berbasis Silase.
Abstrak: Penelitian ini bertujuan mengevaluasi performa domba betina dewasa yang diberi pakan silase komplit Sorinfer dengan penambahan energi dan protein tinggi berupa minyak sawit, minyak kelapa, dan bungkil kedelai. Penelitian ini menggunakan domba lokal betina dewasa sebanyak 12 ekor dengan bobot badan rata-rata 25.43±3.50 kg. Penelitian menggunakan rancangan acak kelompok (RAK). Rancangan percobaan dibagi menjadi 3 perlakuan dengan 4 ulangan. Perlakuan terdiri dari P0= sorinfer + 6% bungkil kedelai (kontrol), P1= kontrol + 3% minyak kelapa sawit, P2= kontrol + 3% minyak kelapa. Peubah yang diuji adalah konsumsi pakan, pertambahan bobot badan harian (PBBH), dan efisiensi pakan. Data dianalisis menggunakan Analysis of Variance (ANOVA) dan apabila perlakuan berbeda nyata akan dilakukan uji lanjut dengan uji Duncan. Hasil penelitian menunjukkan pemberian pakan tinggi energi dan protein berpengaruh (P<0,05) terhadap konsumsi BK dan konsumsi nutrien. Pemberian pakan dengan penambahan minyak sawit 3% (P1) maupun minyak kelapa 3% (P2) belum meningkatkan pertambahan bobot badan ternak dan efisiensi pakan sebaik perlakuan kontrol (P0).
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Judul: Performa Domba Lokal dengan Pemberian Pakan Konsentrat Komersial dan Sorinfer pada Taraf yang Berbeda
Abstrak: Performa domba dipengaruhi oleh beberapa aspek seperti manajemen pakan. Penelitian bertujuan mengkaji performa domba lokal dengan pemberian pakan kombinasi sorinfer terhadap performa produksi domba lokal. Domba yang digunakan adalah domba betina lokal betina yang berumur 1-2 tahun (I0- I1) sebanyak 15 ekor dengan rataan bobot awal 19,38±3,11 kg. Penelitian menggunakan 3 perlakuan ransum yaitu konsentrat yang dikombinasikan dengan silase sorinfer dengan rasio P1 75:25, P2 50:50, P3 25:75. Peubah yang diamati adalah konsumsi ransum as feed, bahan kering (BK), protein kasar (PK), energi (TDN), konversi ransum as feed, BK, pertambahan bobot badan (PBB), bobot akhir, serta feed cost per gain (FCG). Data dianalisis kovarian (ANCOVA) menggunakan Statistical Product and Service Solution (SPSS) yang diuji lanjut dengan metode Duncan. Hasil penelitian menunjukkan konsumsi ransum as feed, BK, PK pada perlakuan P1 nyata lebih tinggi (P<0,05) dibandingkan dengan perlakuan lainnya. Nilai TDN, konversi as feed, konversi BK, PBB, dan FCG ketiga perlakuan tidak berbeda nyata (P>0,05). Perlakuan P1 menghasilkan performa domba terbaik berdasarkan konsumsi as feed, konsumsi BK, dan konsumsi PK.
Keyword: Domba Lokal, Konsentrat, Performa, Sorinfer

Judul: Characteristic of Overshooting Top (OT) Based on  Himawari  8  Satellite  as  a  Convective  Cloud  Feature  that  Generates  Extreme Weather in the Java Island Region
Abstrak: Overshooting Top (OT) is a feature at the top of a convective cloud that is associated with extreme weather. Research on OT in tropical Indonesia is still very limited. The existence of geostationary satellites with wide area coverage and fast frequency observations is useful for observing the fast dynamics of the OT life cycle. Therefore, this study intends to analyze the relationship between OT and extreme weather, updraft and thermodynamic conditions of OT when extreme weather occurs, the best objective method for detecting OT in the day time and night time, and the spatiotemporal distribution of OT in the tropical region of Java Island during the 2018-2021 period. Based on visual analysis using visible channel and Himawari 8 sandwich products, 87% of extreme weather events in Java were accompanied by the appearance of OT. It indicates that the presence of the OT pattern is a convection cloud pattern or feature that is closely related to extreme weather events for the Java Island region. The existence of a time lag between the appearance of OT and extreme weather events on Java Island indicates that the OT of convection cloud can be used as a precursor or nowcasting for the appearance of extreme weather. Most of the convective cloud OT features during extreme weather events on Java Island have altitude that were only able to exceed the altitude of the equilibrium level and few were able to exceed the tropopause level of 9 km – 16 km. The difference in atmospheric conditions during extreme weather events on Java Island, which is in the tropics and subtropics, is a strong and unstable convective energy condition characterized by a larger CAPE, as well as unstable KI, LI, SI and TTI values. It is offset by kinematic factors in the form of a weak vertical wind shear (bulk wind shear 0-6 km) and a higher freezing point height. The difference between extreme weather events in the Java Island region and other tropical regions compared to subtropical regions is the strong updraft speed of convection clouds. The IRW Texture COMB algorithm based on the IRW-Texture Gradient modification and the COMB algorithm shows a significant increase in quality for detecting OT and non-OT pixels in Java. Rainy days with rainfall > 50 mm/day are very common in areas with an altitude of > 500 m. On the other hand, the level of convection activity which is indicated by the presence of OT and lightning is significantly reduced in this area. OT of convective clouds appear more frequently during the DJF season and less frequently during the JJA season. OT often appears during the day time and rarely at night time. Most OTs appear in the central part, away from the south and north coasts of Java Island during the day, while OTs that appear near the south and north coasts of Java Island can appear in the morning or afternoon.
Keyword: convective clouds, extreme weather, Overshooting Tops, Himawari 8 Satellite