Judul: Pemanfaatan Campuran Feed Additive Herbal Sebagai Pengganti Anttibiotik Pada Peforma Dan Persentase Karkas Ayam Broiler
Abstrak: Campuran herbal terdiri dari kunyit dan temulawak digunakan sebagai alternatif antibiotik. Penelitian ini bertujuan untuk menguji penggunaan campuran additive herbal sebagai pengganti antibiotik dalam meningkatkan peforma (konsumsi pakan, konsumsi air minum, bobot badan akhir, pertambahan bobot badan, konversi pakan dan mortalitas) dan persentase karkas ayam broiler. Tiga ratus enam puluh ekor DOC strain Ross Jumbo dibagi kedalam 4 perlakuan masing-masing perlakuan terdiri dari 9 ulangan. Perlakuan yang diberikan yaitu P0 = Ransum tanpa antibiotik + tanpa additive herbal pada air minum, P1 = Ransum mengandung antibiotik + additive herbal pada air minum, P2 = Ransum mengandung antibiotik + tanpa additive herbal pada air minum, P3 = Ransum tanpa antibiotik + additive herbal pada air minum. Data dari rancangan acak lengkap (RAL) dianalisis dengan sidik ragam (ANOVA) dan jika didapatkan hasil yang berbeda nyata (P<0.05) dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa penambahan additive herbal pada air minum tidak nyata mempengaruhi konsumsi pakan, konsumsi air minum, bobot badan akhir, pertambahan bobot badan, konversi pakan dan persentase karkas. Hal ini menunjukkan bahwa additive herbal yang ditambahkan pada air minum memiliki efek yang sama dengan antibiotik yang ditambahkan kedalam pakan dalam meningkatkan performa dan persentase karkas broiler.
Keyword: antibiotik, additive herbal, broiler, karkas, peforma

Judul: Pemberian Air Minum Mengandung Aditif Herbal terhadap Persentase Karkas dan Organ Dalam Ayam Broiler.
Abstrak: Tujuan penelitian ini adalah untuk mengevaluasi persentase organ dalam ayam broiler yang diberi air minum mengandung imbuhan pakan herbal sebagai pengganti antibiotik. Sebanyak 320 ekor ayam broiler Strain Ross umur satu hari dibagi menjadi 32 petak dan secara acak diberi salah satu dari empat perlakuan air minum. Penelitian ini menggunakan 4 jenis ransum, yaitu R0 (ransum dengan antibiotik dan air minum tanpa imbuhan pakan herbal), R1 (ransum tanpa antibiotik dan air minum tanpa imbuhan pakan herbal), R2 (ransum tanpa antibiotik dan air minum dengan 0.75% imbuhan pakan herbal R) dan R3 (ransum tanpa antibiotik dan air minum dengan 0.75% imbuhan pakan herbal S). Data penelitian dirancang dengan Rancangan Acak Lengkap (RAL) dianalisis menggunakan ANOVA dan jika berbeda diuji jarak Berganda Duncan. Peubah yang diamati: persentase bobot karkas, persentase bobot organ dalam, persentase bobot dan panjang saluran pencernaan. Hasil penelitian menunjukkan bahwa penambahan imbuhan aditif herbal pada air minum menurunkan (P<0.05) persentase ginjal dan bulu, namun tidak berpengaruh terhadap persentase karkas dan bobot serta panjang saluran pencernaan. Kesimpulan penelitian ini adalah Pemberian aditif herbal S dalam air minum dapat menurunkan persentase ginjal dan bulu, namun tidak menyebabkan perubahan berarti pada persentase jantung. Penambahan aditif herbal berdampak sama sebagai pengganti antibiotik untuk ayam broiler.
Keyword: antibiotik, broiler, imbuhan pakan herbal, organ dalam

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