Judul: Analisis Kapasitas Simpan Air pada DAS Cisarua, Kabupaten Bogor
Abstrak: Watershed degradation could be characterized by changes in land use of catchment area with low run off coefficient to bare land with high run-off coefficient. Water balance calculation using Tornthwaite equation could be used to calculate fluctuation of water storage in a region. Water balance analysis was conducted at the Cisarua watershed with total area of 2491.90 ha. The objective of this research were to analyse water storage capacity, to calculate water avaibility (based on rainfall data), to calculate water demand, and to provide recommendations of run-off and groundwater recharge management in Cisarua watershed areas. Based on ideal ratio of run-off and groundwater recharge, the composition of the forest area of 50% in Cisarua watersheds is considered ideal, because it has a percentage of run-off by 51%. Residential area composition in Cisarua watershed (30%) is considered ideal, because the run off percentage is 49%. Environmental carrying capacity based on water balance of an area could be determined by calculating the capacity of water availability in the region. With a density of 2080 habitant / km2 and precipitation of 1870.1 mm / year, it could know that Cisarua watershed areas in 2010 were in the state of overshoot. Conservation methods that could be used in efforts to manage run-off excess were the construction of infiltration wells and reforestation
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Judul: Analisis Perubahan Kapasitas Simpan Air pada Sub DAS Ciesek, Kabupaten Bogor, Jawa Barat
Abstrak: Watershed degradation in some places in Indonesia most commonly were caused by high density of populations and over utilization of natural resources. The objectives of this research were to analyze the water storage capacity in Ciesek Sub Watershed and to recommend runoff management at Ciesek Sub Watershed. Land use change in Ciesek Watershed decreased water holding capacity 0.06 mm, increased rainfall 2.44 mm and runoff 2.37 mm, and also increased groundwater capacity 0.08 mm. According to this condition, the area needed land and water conservation activities, such as: (1) managing land use based on conservation method to increase infiltration and decrease runoff; (2) doing reboisation and other conservation activities to ameliorate critical watershed especially on upstream area.
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Judul: Keberadaan Antibodi Asal Induk Newcastle Disease (ND) dan Infectious Bronchitis (IB) pada Broiler yang Divaksinasi Vaksin Rekombinan HVT-IBD
Abstrak: Penelitian ini bertujuan untuk mempelajari keberadaan antibodi asal induk terhadap virus Newcastle Disease (ND) dan Infectious Bronchitis (IB) pada broiler yang divaksinasi dengan vaksin rekombinan Herpesvirus of Turkey (HVT) - Infectious Bursal Disease (IBD). Pada penelitian ini digunakan dua kelompok ayam yaitu: Kelompok Vaksinasi dan Tidak Vaksinasi. Kelompok vaksinasi menerima vaksin rekombinan HVT-IBD pada umur 1 hari. Sampel serum dikoleksi pada umur 3, 6, 9, 12, 15, 19, 22, 26, 29, dan 33 hari. Titer antibodi ND ditentukan dengan uji Hemaglutinasi Inhibisi (HI), sedangkan Enzyme-linked Immunosorbent Assay (ELISA) digunakan untuk menentukan titer antibodi IB. Antibodi ND pada kedua kelompok masih terdeteksi sampai broiler berumur 33 hari, namun titer antibodi ND positif hanya sampai umur 6 hari dan tidak mencapai level protektif. Antibodi IB masih pada level positif sampai dengan umur 6 hari pada kelompok divaksin dan 3 hari pada kelompok tidak divaksin. Hasil penelitian ini mengindikasikan bahwa diperlukan vaksinasi ND pada broiler berumur 3 hari dan vaksinasi IB pada broiler berumur lebih dari 6 hari.
Keyword: Antibodi asal induk, broiler, Infectious, Bronchitis, Newcastle Disease