Judul: Pengaruh pembatasan makanan terhadap distribusi komponen karkas kelinci persilangan jantan
Abstrak: Penelitian ini dilakukan di Laboratorium Ilmu Ternak Daging dan Kerja, Fakultas Peternakan, Institut Pertanian Bogor. Penelitian berlangsung dari tanggal 1 Maret sampai dengan 26 April 1983. Tujuan penelitian ini adalah untuk mempelajari penga- ruh pembatasan jumlah pemberian ransum terhadap distribusi komponen karkas kelinci persilangan jantan. Hewan yang dipergunakan adalah tiga puluh dua ekor kelinci jantan yang berasal dari keturunan Chinchila, California dan New Zealand White, lepas sapih dengan bobot badan awal peneli- tian sebesar 1182.5 ± 164.5 gram. Penelitian ini dilakukan dengan 4 perlakuan pembatas- an jumlah pemberian ransum, masing-masing ad libitum (PI) sebagai kontrol, 87.5 persen (PII), 75.0 persen (PIII) dan 62.5 persen (PIV). Ransum yang dipergunakan adalah ransum dalam bentuk pellet. Setiap perlakuan memakai 8 ulangan selama 6 minggu. Rancangan yang dipergunakan adalah Rancangan Acak Lengkap yang pengolahannya dilakukan dengan analisis pera- gam (Co-variance). Hasil penelitian menunjukkan bahwa bobot karkas pada bobot potong dan bobot tubuh kosong yang sama tidak dipe- ngaruhi oleh perlakuan pembatasan ransum. Bobot otot dan lrmak karkas sangat nyata (P0.01) dipengaruhi oleh pembatasan ransum, untuk otot karkas pem- berian ransum ad libitum sangat nyata lebih rendah dari perlakuan II, III dan IV pada bobot karkas yang sama, se- dangkan lemak karkas pemberian ransum ad libitum sangat nyata (P0.01) lebih tinggi dari pada perlakuan III dan IV, pemberian ransum ad libitum tidak nyata berbeda dengan pemberian 87.5 persen. Pada bobot karkas yang sama potongan kaki depan dan potongan kaki belakang dipengaruhi oleh pembatasan ransum. Persentase potongan dada-leher dan pinggang terhadap bobot karkas tampak konstan, sedangkan untuk kaki depan menurun dan kaki belakang meningkat dari perlakuan I (ad libitum) sampai dengan IV (62.5 persen). Persentase bobot terbesar adalah pada kaki belakang, kemudian pinggang, dada-leher dan terakhir kaki depan…dst
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Judul: Pengaruh pembatasan ransum terhadap distribusi lemak tubuh pada kelinci persilangan jantan
Abstrak: Pengaruh pembatasan ransum terhadap distribusi lemak tubuh kelinci, dipelajari di Laboratorium Ilmu Produksi Ternak Daging dan Kerja, Fakultas Peternakan, Institut Pertanian Bogor, sejak tanggal 1 Maret sampai 2 Mei 1983. Tiga puluh dua ekor kelinci persilangan jantan dengan bobot badan awal 1182.5 ± 164.5 g dari peternakan kelinci "AKATE:, Cijangkar, Kabupaten Sukabumi, digunakan untuk penelitian ini. Kelinci tersebut dibagi menjadi 4 kelompok perlakuan, masing-masing 8 ekor sebagai ulangan. Perlakuan terdiri atas pemberian ransum ad libitum sebagai kontrol (A), 87.5 persen (B), 75.0 persen (C) dan 62.5 persen (D). Penelitian dilakukan selama 6 minggu dengan periode pen- dahuluan satu minggu. Pada akhir penelitian, semua kelinci dipotong dan diseksi. Penelitian dilaksanakan dalam Rancangan Acak Lengkap, dengan analisis peragam model y = =T, Ti ax untuk mempelajari pengaruh perlakuan (T₁, i 1, 2, 3 dan 4) terhadap distribusi lemak tubuh. Hasil penelitian menunjukkan, bahwa terhadap bobot tubuh kosong, persentase total lemak tubuh, total lemak karkas, lemak karkas, bawah kulit, antar urat daging, pelvis, ginjal, jantung, saluran pencernaan dan kepala masing- masing 8.97, 7.05, 5.35, 2.72, 2.71, 0.30, 1.31, 0.09, 1.22 da 0.59 persen. Terhadap bobot karkas, persentase total lemak karkas, lemak karkas, bawah kulit, antar urat daging, pelvis, ginjal, potongan dada-leher, potongan 'kaki depan, potongan pinggang dan potongan kaki belakang, masing-masing 12.24, 9.29, 4.72, 4.70, 0.52, 2.28, 2.19, 3.09, 1.61 dan 2.39 persen pada pemberian ransum ad libitum.
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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