Judul: Substitusi Ransum Komersial Broiler dengan Serbuk Gergaji Fermentasi terhadap Performa dan Potongan Komersial Karkas.
Abstrak: Penelitian ini bertujuan untuk mengevaluasi efek dari serbuk gergaji yang difermentasi dengan probiotik multigeneral dari bermacam spesies hewan (Macrotermes gilvus, Achatina fulica dan Felis catus) terhadap performa dan potongan komersial karkas ayam broiler. Komposisi serbuk gergaji fermentasi terdiri dari molases, dicalcium phosphate (DCP), probiotik, air dan serbuk gergaji yang difermentasi selama 24 jam. Ternak yang digunakan adalah 200 ekor ayam berumur 1 hari yang dipelihara selama 35 hari. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan 5 perlakuan dan 4 ulangan. Perlakuan terdiri atas P0 (ransum komersial), P1 (97.5 % P0 + 2.5% serbuk gergaji fermentasi), P2 (95 % P0 + 5% serbuk gergaji fermentasi), P3 (92.5% P0 + 7.5% serbuk gergaji fermentasi) dan P4 (90% P0 + 10% serbuk gergaji fermentasi). Peubah yang diamati adalah performa (konsumsi ransum, pertumbuhan bobot badan dan FCR) serta persentase bobot potongan komersial karkas (dada, sayap, paha dan punggung). Hasil penelitian menunjukkan serbuk gergaji fermentasi tidak berpengaruh terhadap peubah yang diamati. Kesimpulan penelitian ini adalah substitusi ransum komersil ayam broiler dengan serbuk gergaji fermentasi tidak menurunkan nilai performa dan persentase karkas ayam broiler.
Keyword: ayam broiler, karkas, performa, probiotik, serbuk gergaji fermentasi

Judul: Substitusi Ransum Komersial Ayam Broiler dengan Modifikasi Konsentrat Sapi Perah Plus Probiotik: 1.Performa dan Karkas.
Abstrak: Penelitian ini bertujuan untuk mengevaluasi penggunaan konsentrat sapi perah perah, ampas tahu, dicalsium phospat (DCP) dan Probiotik dalam ransum ayam broiler terhadap performa dan persentase karkas. Penelitian ini menggunakan 200 ekor DOC strain Cobb ayam broiler dengan 5 perlakuan dan 4 ulangan. Perlakuan terdiri atas P0: ransum komersil, P1: ransum komersil dan 7.5% mengandung konsentrat sapi perah, ampas tahu, DCP, P2: ransum komersil dan 15% mengandung konsentrat sapi perah, ampas tahu, DCP, P3: ransum komersil dan 22.5% mengandung konsentrat sapi perah, ampas tahu, DCP, P4: ransum komersil dan 30% konsentrat sapi perah, ampas tahu, DCP. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dan analisis ragam (ANOVA) dengan peubah yang diamati meliputi konsumsi ransum, pertambahan bobot badan, konversi ransum, persentase karkas, persentase irisan potongan komersil karkas ( dada, paha, punggung, sayap). Hasil penelitian menunjukkan bahwa perlakuan tidak memberikan pengaruh terhadap konsumsi ransum, pertambahan bobot badan, konversi ransum, persentase karkas, persentase dada, persentase sayap namun berpengaruh nyata ( P<0.05) meningkatkan persentase punggung dan paha. Disimpulkan bahwa konsentrat sapi perah, ampas tahu, DCP, dan probiotik dapat disubtitusikan dengan ransum ayam broiler.
Keyword: ayam broiler, konsentrat sapi perah, probiotik, performa, persentase karkas

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