Judul: Tinjauan terhadap pemakaian antibiotika sebagai " Growth Promotor " pada ternak
Abstrak: Penggunaan bahan/zat tertentu untuk tujuan merang- sang pertumbuhan ternak sudah dikenal, diteliti dan dilakukan sejak berpuluh-puluh tahun yang lampau. Diantara zat-zat yang telah dikenal, ternyata antibiotika merupakan suatu zat kimia yang paling potensial untuk tujuan tersebut. Tujuan dari penulisan skripsi ini adalah untuk meneliti dan menelaah sejauh mana antibiotika dapat berperan sebagai bahan/zat kimia yang dapat merangsang atau menggertak pertumbuhan pada ternak. Skripsi ini disusun berdasarkan studi pustaka. Telah diketahui ada 3 aspek penting yang berkaitan erat dengan daya kerja antibiotika sebagai "Growth Promotor" yakni melalui pengaruhnya terhadap metabolisme, pengaruh menghemat beberapa zat makanan dan melalui pencegahan penyakit. ...
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Judul: Studi suplementasi phytogenik sebagai pemacu pertumbuhan terhadap performan ayam broiler
Abstrak: Antibiotik sebagai pemacu pertumbuhan telah banyak digunakan, tetapi pada umumnya antibiotik memberikan dampak resiko jangka panjang yang merugikan baik pada lingkungan maupun manusia yang mengkonsumsinya. Untuk melindungi kesehatan masyarakat dari bahaya resistensi antibiotik, perlu dikaji pemacu pertumbuhan berbahan baku alamiah yang aman untuk manusia dan lingkungan. Phytogenik merupakan salah satu pemacu pertumbuhan dihasilkan dari ekstrak tumbuhan yang berperan penting dalam memacu pertumbuhan. Tujuan penelitian untuk mengetahui taraf penggunaan dan pengaruh pemberian ransum yang mengandung phytogenik dan antibiotik pemacu pertumbuhan terhadap bobot badan dipasarkan, pertambahan bobot badan, konsumsi ransum, konversi ransum, tingkat kematian (mortalitas), income over feed and chick cost ayam broiler. Ternak yang digunakan sebanyak 300 ekor ayam broiler strain Avian yang ditempatkan dalam 30 petak kandang sistem litter yang dipelihara selama 5 minggu dan masing-masing berisi 10 ekor. Ransum perlakuan disusun isokalori dan isoprotein dengan kandungan energi ransum 3131 kkal/kg dan protein ransum 21,97 %. Rancangan yang digunakan adalah Rancangan Acak Lengkap 6 perlakuan dan 5 ulangan menggunakan phytogenik 50, 100, 150, 200 mg/kg dan antibiotik Avilamycin 5 mg/kg dan Flavomycin 4 mg/kg.
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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