Judul: Penamplan reproduksi mencit putih (Mus musculus) pada litter size kedua dengan penambahan zeolit dalam ransum
Abstrak: Penelitian ini dilaksanakan di Laboratorium Lapang, bagian Non Ruminansia dan Satwa Haraoan (NRSH), Departemen Ilmu Produksi dan Teknologi Peternakan, Fakultas Peternakan Institut Pertanian BOgor. Ransum perlakuan adalah empat taraf zeolit (0, 3, 6 dan 9%) dengan menggunakan 24 ekor induk mencit dan 12 ekor pejantan. Rancangan Acak Lengkap dengan enam ulangan digunakan dalam penelitian ini.
Keyword: 

Judul: Pengaruh tepung rimpang pacing (Costus speciosus (Koen.) Sm.) terhadap reproduksi mencit putih (Mus musculus L. Strain Albino)
Abstrak: Penelitian di laksanakan di Laboratorium Rodentologi Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Institut Pertanian Bogor. Penelitian ini dilakukan dengan menempatkan mencit jantan dan betina dalam kandang plastik yang ditutup kawat kasa, kemudian diberi makan campuran umpan standar dan tepung rimpang pacing. Keesokan harinya ditimbang sisa campuran umpannya. Setelah pengumpanan pasangan mencit tersebut dicampur pada kandang kawin, dengan ketentuan konsentrasi perlakuan sama. Peubah yang diamati adalah palatabilitas umpan campuran pelet, jumlah diosgenin yang dikonsumsi, jumlah anak perlahiran, bobot lahir seketurunan, dan prosentase kematian selama pertumbuhan anak sampai berumur 3 minggu. Rancangan yang digunakan adalah Rancangan Acak Leng- kap dengan 4 perlakuan TRP dalam umpan dan Rancangan Acak Lengkap Faktorial dengan 2 faktor perlakuan yaitu konsen- trasi TPR (0, 12.5, 25, 50 %) dan lama pengumpanan 1, 2, 3 minggu. Perlakuan diulang 3 kali. Hasil pengamatan berdasarkan uji Beda Nyata Terkecil (BNT) pada taraf 5% menunjukkan bahwa pengaruh TRP sampai konsentrasi 25% pengumpanan 1 minggu tidak berbeda nyata atau tidak terpengaruh pada palatabilitas umpan, sedangkan pengumpanan 2, 3 minggu berbeda nyata. Konsentrasi 50% umumnya sama dengan konsentrasi 25% pada semua lama pengumpanan. Jumlah diosgenin yang dikonsumsi mencit pada konsentrasi 12,5% sama dengan konsentrasi 25% tetapi berbeda dengan konsentrasi 50 %. Reproduksi mencit yang diamati pada konsentrasi 50% dengan lama pengumpanan 3 minggu, paling rendah tingkat reproduksinya bisa mencapai ( 1,667 ekor perkelahiran ). Penurunan bobot anak tidak dipengaruhi lama pengumpanan dan konsentrasi. Lama pengumpanan tidak terpengaruh terhadap prosentase kematian selama pertumbuhan anak sampai 3 minggu, yaitu ditunjukkan paling tinggi kematiannya pada konsentrasi 50% dengan lama pengumpanan 1 minggu 77,77 %.
Keyword: 

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