Judul: Studi anatomi perbandingan letak kelenjar hipopisa ternak sapi, kerbau dan domba serta pengaruh ekstraknya terhadap spermasi dan mani ikan mas (Cyprinus carpio L.)
Abstrak: Penelitian dilaksanakan dengan tujuan untuk mengetahui letak dan ukuran kelenjar hipofisa sapi, kerbau dan domba secara biometri; dapat melakukan pengangkatan kelenjar hipofisa dengan cepat dan praktis dengan beberapa cara tanpa merusak kelenjar hipofisa tersebut; ingin memanfaatkan kelenjar hipofisa ternak untuk hipofisasi ikan mas (Cyprinus carpio L). pada Penelitian dilaksanakan dalam 2 (dua) tahap: tahap 1 menentukan letak dan mengangkat kelenjar hipofisa dilakukan dengan 3 metoda, yaitu mengangkat kelenjar hipofisa dari bagian atas, samping dan dari bagian bawah (rahang atas); tahap 2 adalah mencobakan ekstrak hipofisa sapi, kerbau dan domba untuk merangsang spermiasi ikan mas (g..Y.Qrinus carpio L).
Keyword: Cyprinus carpio, Cattle hypofin, Buffalo hypofin, Sheep hypofin;

Judul: Dosis optimal ekstrak hipofisa sapi untuk menghasilkan mani dan daya tetas telur ikan mas (Cyprinus carpio L.)
Abstrak: Tujuan penelitian adalah untuk mencari dosis yang tepat dari ekstrak hipofisa sapi untuk menghasilkan mani dan daya tetas telur ikan mas (Cyprinus carpio L). Penelitian dilakukan di Laboratorium Diologi Reproduksi, Program Pascasarjana Institut Pertanian Dogor, dari bulan Januari - Haret 1992. Dalam penelitian dipergunakan ikan mas jantan strain Hajalaya berumur 6 bulan sebanyak 64 ekor dengan jumlah berat 16 kg, dan 1 ekor ikan betina (3.200 g). Penelitian terdiri dari.4 perlakuan, dan setiap perlakuan diulang 4 kali. Berat ikan untuk setiap kali ulangan adalah 1.0 kg. Perlakuan kontrol ikan disuntik dengan NaCl fisiologis 0.65 % sebanyak 1.5 ml/kg berat badan, perlakuan lainnya adalah dosis 30, 60, dan 90 mg/kg berat badan. Dari analisis peragam, ternyata dosis ekstrak hipofisa sapi berpengaruh sangat nyata terhadap volume mani, konsentrasi spermatozoa, dan prosentase daya tetas telur (p < 0.01), sedangkan untuk prosentase fertilitas berpengaruh nyata (p < 0.05). IIubungan antara volume mani dengan konsentrasi spermatozoa diperoleh nilai r = - 0.6475, artinya semakin tinggi volume mani, maka konsentrasi spermatozoa semakin rendah. Hubungan antara konsentrasi spermatozoa dengan prosentase fertilitas diperoleh nilai r = - 0.7203, artinya juga semakin tinggi konsentrasi spermatozoa, maka fertilitas semakin rendah. Dan hubungan antara prosentase fertilitas dengan prosentase daya tetas telur diperoleh nilai r = 0.9688, artinya semakin tinggi prosentase fertilitas, maka semakin tinggi prosentase daya tetas telur. Dari hasil penelitian ternyata dosis.60 mg/kg berat badan menghasilkan volume mani, prosentase fertilitas, dan daya tetas telur tertinggi, namun menghasilkan konsentrasi spermatozoa terendah.
Keyword: Hatching availability, Cattle hipofisa, Spermatozoid, Cyprinus carpio

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