Judul: Pedugaan Erosi menggunakan USLE dan SIG di Sub DAS Cisadane Hulu Caringin Bogor
Abstrak: Watershed management requires actual information about hydrological parameter, so the availability for the erosion data becomes important and erosion prediction necessary to be done periodically. The goals of this research are to predict the erosion hazard spatially and to plan the right conservative measure to reduce erosion in Cisadane Hulu watershed, particularly in SPAS Cipeucang area, using USLE and GIS method. The erosivity calculation results in 1515.59, the erodibilty was categorized as high, LS was between 0.7627 - 5.3785, and C was between 0.001-0.5045. The maximum potential erosion was 4234.04 ton/hectare/year, the highest actual erosion was 1199.97 ton/hectare/year and lowest actual erosion was 0.48 ton/hectare/year. The erosion hazard index was categorized as low. Forest land use was effective to reduce erosion hazard in SPAS Cipeucang.
Keyword: 

Judul: Aplikasi Sistem Informasi Geografis dalam Penentuan Tingkat Bahaya Erosi di Sub DAS Batanghari Hulu.
Abstrak: Watershed (DAS) Batanghari is a water catchment area which plays an important role in maintaining of ecosystem. Keputusan Kementerian Pekerjaan Umum (2012) states that forest degradation that occurs in the upstream Sub DAS. Prediction of erosion hazard was assessed using USLE with GIS software (ArcGIS 9.3 and ERDAS Imagine 9.1). The rate of erosion in the Sub DAS Batanghari Hulu calculated based on factors USLE erosion, i.e rain erosivity, soil erodibility, length and slope, land use and conservation actions. GIS analysis results showed that the rate of erosion in Sub DAS Batanghari Hulu is divided into five classes, i.e very light, mild, moderate, severe and very severeclass erosion. The Sub DAS Batanghari Hulu dominated by very mild class erosion, reaches 434 584.62 ha with a percentage of 34.80% of the total area. The Sub DAS Batanghari Hulu with very severe erosion hazard level has the smallest area, 64 430.04 ha, shows that most of the watershed area has a tolerable erosion value.
Keyword: erosion, gis, usle, watershed

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