Judul: Pengaruh Pemberian Tetrasiklin dan Kopi dalam Ransum Berenergi Metabolis 3.000 Kkal/kg terhadap Persentase Karkas, Organ Dalam dan Potongan KomersiaI Ayam Kampung
Abstrak: Penelitian ini dilakukan untuk mengetahui pengaruh pemberian tetrasiklin dan kopi dalam ransum yang mengandung energi metabolis sebesar 3.000 kkal/kg terhadap bobot potong, persentase bobot karkas, potongan komersial, organ dalam dan panjang bagian-bagian usus halus serta seka ayam Kampung. Penelitian ini dilaksanakan di Laboratorium Ilmu Nutrisi Ternak Unggas, Departemen Ilmu Nutrisi dan Makanan Ternak, Fakultas Peternakan, Institut Pertanian Bogor dari bulan April hingga bulan Juni 2003. Penelitian ini menggunakan 72 ekor ayam Kampung yang berumur 6 minggu dan dipelihara selama 8 minggu. Ransum percobaan yang diberikan ada empat macam, yaitu ransum yang tidak mengandung tetrasiklin dan kopi sebagai ransum basal, ransum yang hanya mengandung kopi 0,4%, ransum yang hanya mengandung tetrasiklin 0,003% dan ransum yang mengandung tetrasiklin 0,003% dan kopi 0,4%. Diakhir pemeliharaan, 24 ekor ayam dipotong untuk mengetahui persentase bobot karkas dan bobot organ dalamnya.
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Judul: Pengaruh Pemberian Tetrasikllin dan Kopi dalam Ransum Berenergi Metabolis 2.600 kkal/kg Terhadap Persentase Karkas, Potongan Komersial dan Organ Dalam Ayam Kampung
Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh penambahan tetrasiklin dan kopi dalam ransum ayam Kampung yang berenergi metabolis 2.600 kkallkg terhadap bobot potong, persentase bobo! karkas, potongan komersial, organ dalam dan panjang relatif bagian usus (duodenum, jejenum, ileum dan sekum). Penelitian ini telah dilaksanakan dari bulan April sampai dengan Juni 2003 di Laboratorium Ilmu Nutrisi Temak Unggas, Departemen Ilmu Nutrisi dan Makanan Temak, Fakultas Peternakan, IPB. Ternak yang digunakan pada penelitian adalah ayam Kampung umur 6 minggu sebanyak 72 ekor yang dipelihara selanm 8 minggu. Ransum percobaan yang diberikan ada 4 macam yaitu ransum basal, ransum basal yang ditambahkan kopi 0,4%, ransum basal yang ditambahkan tetrasiklin 0,003% dan ransum basal yang ditambahkan kopi 0,4% dan tetrasiklin 0,003%. Ransum dan air minum diberikan ad libitum. Di akhir pemeliharaan, 24 ekor ayam dipotong untuk diukur persentase bobot karkas, potongan komersial, organ dalam dan panjang relatif bagian usus (duodenum, jejenum, ileum dan seka).
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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