Judul: Kualitas batu bata dengan penambahan isi rumen
Abstrak: Salah satu limbah rumah pemotongan hewan adalah isi rumen. Isi rumen dapat dimanfaatkan sebagai campuran bahan pembuat batu bata. Tujuan penelitian ini adalah untuk menguji kualitas fisikbatu bata dari limbah isi rumen dengan perlakuan variasi penambahan isi rumen. Hasil menunjukan batu bata memiliki kuat tekan sebesar 29.23-97.95 kgf cm-2, penyusutan volume setelah pembakaran sebesar 30.90%-33.33%, dan porositas sebesar 23.02%-25.20%. Hasil analisis ragam menunjukan bahwa penambahan isi rumen memberikan pengaruh yang berbeda nyata terhadap kuat tekan batu bata. Analisis ragam dan uji banding berganda Duncan menunjukan bahwa batu bata memiliki kualitas terbaik dan paling efisien adalah batu bata yang terbuat dari limbah isi rumen dengan taraf penambahan rumen sebesar 10%. Batu bata tanpa penambahan isi rumen masih lebih baik dibandingkan batu bata dengan penambahan isi rumen.
Keyword: isi rumen, kualitas batu bata, limbah rumah pemotongan hewan

Judul: Pemanfaatan isi rumen sebagai makanan domba
Abstrak: Penelitian ini dilakukan di Laboratorium Makanan Ternak Fakultas Peternakan, Institut Pertanian Bogor bulan Agustus sampai Nopember 1990. dari Tujuan dari penelitian ini adalah memanfaatkan isi rumen dari Rumah Potong Hewan (RPH) dengan pengolahan menjadi pakan ternak domba dan mengukur pengaruhnya terhadap performans melalui pengukuran pertambahan bobot badan, konsumsi bahan kering ransum dan daya cerna semu serat kasar beserta komponennya. Ternak yang digunakan berjumlah 14 ekor domba jantan lokal berumur kurang dari satu tahun, dengan kisaran bobot badan awal 19.69 0.80 Kg, dikandangkan secara individual. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL), tiga perlakuan dengan ulangan tidak sama masing-masing empat, lima dan lima. Perlakuan adalah tiga macam ransum Pellet Rumput lapang (PR), Pellet Isi Rumen (PIR) dan Pellet Isi Rumen ditambah Bungkil kelapa (PIRB). Air minum dan ransum diberikan ad libitum. Pengumpulan feses dilakukan selama seminggu dan feses yang terkumpul dianalisis dengan metode Proksimat dan Van Soest (Goering dan Van Soest, 1970). Analisis Van Soest menguraikan komponen serat kasar yaitu NDF, ADF, Selulosa, hemiselulosa dan lignin. Perlakuan macam ransum memberikan pengaruh yang nyata terhadap konsumsi bahan kering ransum. Rataan konsumsi bahan kering yang tertinggi dicapai oleh ransum PR sebesar 1077.78 gram/ekor/hari, kemudian PIR dan PIRB masing- masing 882.01 dan 815.50 gram/ekor/hari. Perlakuan macam ransum memberikan pengaruh yang sangat nyata terhadap pertambahan bobot badan domba. Pertambahan bobot badan tertinggi pada ransum PR yaitu 124.72 gram/ekor/hari diikuti PIRB dan PIR berturut-turut sebesar 67.72 dan 21.53 gram/ekor/hari. Perlakuan macam ransum memberikan pengaruh yang tidak nyata terhadap daya cerna semu serat kasar, dimana nilainya masing-masing untuk PR, PIR dan PIRB adalah 7.31, 10.97 dan 2.85 persen....
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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