Judul: Analisis kesesuaian penggunaan lahan serta land rent komoditi sayuran dan teh di Desa Ciguha, Kecamatan Sukanagara, Kabupaten Cianjur
Abstrak: Perencanaan penggunaan lahan pertanian merupakan bagian dari perencanaan pembangunan pertanian. Dalam perencanaan penggunaan lahan pertanian berbagai faktor, baik sifat fisik lingkungan maupun sosial ekonomi turut dipertimbangkan. Dalam kaitan dengan sifat fisik lingkungan, maka pekerjaan evaluasi kesesuaian lahan sangat berperanan besar dalam memberikan berbagai alternatif penggunaan. Masukan ini sangat penting dalam keseluruhan perencanaan penggunaan lahan tersebut. Terdapat keterkaitan antara kelas kesesuaian lahan dengan nilai sewa ekonomi lahannya (land renhlya). Apabila produktivitas komoditi tersebut tinggi (terjadi surplus ekonomi akibat kesesuaian lahan), maka dapat dipastikan land rentnya juga tinggi. Untuk mengetahui kegiatan usaha yang paling menguntungkan perlu diketahui besaran land rent untuk tiap jenis komoditi.
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Judul: Analisis kemampuan lahan dan manfaat ekonomi (land rent) pada berbagai tipe penggunaan lahan untuk tanaman hortikultura di kecamatan pacet Kabupaten Cianjur
Abstrak: The purpose of this research is to analyze land suitability classes on several vegetable plants and to compare land rent and financial feasibility on several land use types. Location of the research was in Pacet, Cianjur which base on Soil Research Centre and Agroclimate (1978) classification include Mediteran group. The data was analyze in Laboratory of Land Resource Development Planning, Department of Soil, Bogor Agnculturai University. The research began in February and finished by September 2002. The method which use are analysis of land suitability classes base on suitability criteria by Soil Research Centre and Agroclimate (2000), analysis of land rent base on revenue and production cost, analysis of financial feasibility with cash flow analysis (Net Present Value, Internal Rate of Return, Benefit Cot Ratio), and Break Event Point. Analysis of statistics are used T -test, best-subsets regression, and multiple regression.
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Judul: Antibody Responses against Newcastle Disease and Evaluation of Infectious Bronchitis Maternal Derived Antibody on Vaccinated Layers.
Abstrak: Information of maternal derived antibody (MDA) and onset of immunity after vaccination is important to determine appropriate vaccination programme of chickens. The aim of this study was to evaluate duration of Infectious Bronchitis (IB) MDA and evaluate onset of immunity Newcastle Disease (ND) vaccination among layers. All layers were vaccinated using live ND and Infectious Bursal Disease (IBD) at one day old age, and received Avian Rhinotracheitis (AR) vaccine at 4 day old age. Serum samples were collected at various ages: 7, 10, 14, 20, 22, 24, 29 and 35 day old. The presence of ND antibodies was measured by the hemagglutination inhibition (HI) test, whilst the presence of IB antibodies was measured by enzyme-linked immunosorbent assay (ELISA). Our study showed that ND antibodies were at positive level until 24 day old age, and reached protective level ≥ 25 only at 7 day old age, whilst IB MDA were positive up to 17 day old age. This result indicating the needs of ND booster vaccination at least at 24 day old and IB vaccination at 17 day old age.
Keyword: antibody, Infectious Bronchitis, layers, Newcastle Disease, vaccination