Judul: Studi Korelasi Antara Tanah, Lahan, Dan Pertumbuhan Jagung Secara Toposekuen Di Desa Karyamekar, Kecamatan Cariu, Kabupaten Bogor
Abstrak: According to van Wambeke and Forbes (1986) land unit is a placement of land unit because their mostly same genetic factor (biotic and abiotic) and genesis process. Soil is closely related with landscape and landform, so different land unit (system, subsystem, and landform category) is also different in soil unit, probably as a soil of each category (order, suborder, great group, subgroup, family, and a soil series) mentioned the processes ofland and soil genesis. Differences in soils reflect differences in soil properties and characteristics, which determine differences potency and use. Therefore, knowledge on soil properties, characteristics, and soil classification is needed. This research was intended for conducting correlation study between soil, land, and corn growth on the toposequence in volcanic landscape. The objective was producing correlation data between soil families, landform, and the growth of hybrid corn CPI 2 on the toposequence. This research used soil classification method based . on Keys to Soil Taxonomy (Soil Survey Staff, 2006) up to the family category, landform cassification (Desaunettes, 1977), and corn crop performance test with block domized design. Landscape in the study area was divided into three landforms based on position and slope of the land, namely peak (PI), slope (P2) and valley (P3). Based on Soil Taxonomy USDA (2006) and landform classification (Desaunettes, 1977), Pedon PI belong to Typic Kandiudox, very fine, kaolinitic, acid, isohyperthermic, within rolling volcanic plain, andesite parent material, levelland, not incised landform (Va.2.1.0), Pedon P2 belong to Inceptic Hapludox, very fine, kaolinitic, acid, isohyperthermic, within rolling volcanic plain, andesite parent material, rolling, not incised landform (Va.2.2.0), Pedon P3 belong to Typic Kandiudox, very fine, kaolinitic, acid, isohyperthermic, within rolling volcanic plain, andesite parent material, levelland, not incised landform (Va.2.1.0). Based Duncan's test that were not affected by differences in block (degree of slope), because of the same name up to suborder.
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Judul: Studi Korelasi Antara Proses Geomorfik Dan Pedogenesis Di Desa Lamajang, Kecamatan Pangalengan, Kabupaten Bandung
Abstrak: Landform and soil formed by geomorphic and pedogenic processes. Geomorphic processes play a role in change and shape the earth's surface through out a process of physical and chemical weathering, volcanism, and extraterrestrial, while the pedogenic process produce soil body. According to van Wambeke and Forbes (1986), land unit is a container of a soil unit due to the similarity genetic factors (abiotic and biotic) and the genetic processes. Geomorphic processes based on abiotic factors (parent material, climate, relief, and time), while biotic factors (organisms, especially vegetation) only serves as an indicator, for example: gelam is an indicator of landform with acid sulphate soils. The processes of pedogenic based on factors biotic and abiotic itself. Research areas belong to volcanic landscape which dominated by the surface processes, such as: erosion, deposition, sedimentation, and mass movements, thus forming various forms of landform. This research intends to do analysis, interpretation, and correlation between land formation (geomorphic processes) and soil formation (pedogenesis) in volcanic landscapes. The aim is to determine land units (landforms) systematically (Desaunettes, 1977) as containers of soil units (Soil Survey Staff, 2010). This research includes preparation, field work, laboratory analysis, processing data, and preparation of final report. The results of research showed that the diversity of landforms are coinciding with the diversity of soil units (Great Group). There were found that the landform of ridge plains of volcano midlle, with parent material from andesitic rocks, undissected and flat slope (0-3%) (Vat 3.5.0) is occupied by Melanudand (Pedons P1); Landform of volcano midlle, with parent material from andesitic rocks, dissected and steep slope (30-60%) (Vat 3.6.3) is occupied by Hapludand (Pedons P2); and Landform of foot slope volcanic midlle, with parent material from andesitic rocks, slightly dissected and gently slope (2-5%) (Vat 3.5.2) is occupied by Fulvudand (Pedons P3). Correlation between geomorphic and pedogenesis processes which observed through the toposequent direction, supported by laboratory analysis data and secondary data (Puslittanak, 1993) and then extrapolated to the entire Village Lamajang, resulting seven landform mapping units as the component of semidetailed Landform Map of Lamajang Village Scaled at 1 : 50.000.
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Judul: Prospek Pemanfaatan Imunoglobulin Y Dalam Bidang Imunoterapi Pada Ikan
Abstrak: Ikan merupakan jenis hewan yang memiliki sistem imun sederhana, sehingga rentan terhadap infeksi berbagai macam patogen. Untuk mengendalikan berbagai penyakit ikan, sejak zaman dahulu telah digunakan antibiotika. Namun, akibat dampak negatif dari penggunaan antibiotika yang relatif tinggi, maka saat ini banyak dilakukan penelitian tentang cara alternatif untuk menangani dan mengendalikan penyakit ikan sebagai bahan pengganti antibiotika. Salah satu caranya yaitu dengan menggunakan Imunoglobulin Y. Imunoglobulin Y merupakan antibodi yang berasal dari telur, yang dapat digunakan sebagai bahan imunoterapi spesifik terhadap berbagai penyakit. Untuk mendapatkan IgY yang spesifik terhadap penyakit ikan terlebih dahulu harus dilakukan penyuntikan antigen (patogen ikan) terhadap ayam. Beberapa penyakit yang diketahui telah berhasil dikendalikan dengan IgY yaitu penyakit bercak merah, penyakit mulut merah, edwarsielosis, vibriosis dan penyakit koi herpes virus (KHV). Cara aplikasi IgY pada ikan yaitu dengan metode perendaman (immersion), peroral, dan injeksi intraperitoneal. Metode perendaman diketahui efektif digunakan pada ikan yang dipelihara dalam skala kecil, sedangkan peroral efektif digunakan pada ikan yang dibudidayakan dalam skala besar dan lingkungan yang relatif luas. Untuk metode injeksi tidak disarankan untuk digunakan karena dapat meningkatkan stres pada ikan, yang dapat menyebabkan kematian. Efek pemberian IgY terhadap ikan yang terinfeksi patogen yaitu dapat menurunkan angka mortalitas dan morbiditas ikan.
Keyword: Ikan, IgY, Imunoterapi, Penyakit Ikan