Judul: IPB (Bogor Agricultural University)
Abstrak: Goal of the experiment was to provide a sustainability of oil palm management model, which can be described as follow: (1) to analyze land suitability and productivity performance of oil palm area, (2) to analyze oil palm yield model, (3) to analyze the role and institutions linkage, (4) to create sustainability management model and its scenario strategic for implementing of the promoted model. The results showed that sustainability of Nucleus Estate Smallholder oil palm plantation for 2010-2035 period can be achieved through the promoted management model with the conditions of people growth 1.7%, land suitability S2 (moderately suitable) and weak competition capacity of competitor crop (rubber). The indicators of sustainability oil palm management model were (a) favorable physical land condition which can be shown from the lower level of land degradation about 0.03-0.08%, environmental carrying capacity also low about 0.002-0.01%, and by average, production of fresh fruit bunch was 25.83 tones/year, (b) farmer’s income about Rp. 45 719 916/year and society income Rp. 16 845 025/year, higher then the minimum regional wage of Riau Province, (c) Socially, education level of the farmer increased significantly which can be equalized into total income up to Rp. 55 000 000/year. Empowerment of farmer group was the best alternative in generating of sustainability oil palm management model. In accordance to the local condition, The PRITAMA scheme model has the highest probability in creating of an harmonies institutional linkage. There were 7 key variables for implementing of the promoted sustainability of oil palm management model, namely, land holding size, land status, land suitability, capital, human resources, institution and government policy. The medium scenario has the highest probability towards sustainability oil palm management model with the conditions for future are land holding size rather decrease, land status fixed, land suitability relative remain, quality of human resources moderate, working capital available, institution rather harmonies and government policy favorable for implementing of the promoted model.
Keyword: Land Degradation, Carrying Capacity, Nucleus Estate Smallholder Oil Palm, Land Suitability

Judul: IPB (Bogor Agricultural University)
Abstrak: Land usage in fhe upper catchment of Cikapundung is increasingly uncontrollable so that a lot of land usage disagree wifh the required conditions. The aim of this study wem: (I) evaluating the existing land usage to its land usage suitability; (2) cumpiIing sustainable Iand usage rnodel in the upper catchment; and (3) conducbng simulation based on land usage model which have been formulated to study the conservation expense, beneficial cmp type, and appmpriate conservation practice. 7??ere were t h m submodels made in this research (submodel of erosion using USLE and Arsyad, subrnw of nrnoff using Bransby and Wlliams, and s o d economic subMOdeI using BCratio and NPV). These submodels then integrated to become one model of land usage in the upper catchment using pmgramme package "Powersim vembn 2.5~". This model simulated by considering land suitability aspect to obtain sustainable land usage. Most of land usages in the upper catchment of Cikapundung (64,98 %) disagree with Iand condition. Model of Sustainable land usage can be used to depict system behaviour, because the model compiled from three subm&/s using equation which have been adapted with the condition of research area. Results of simulation indicated that, at present fanning in dry land area in the upper catchment still profit because its BC-mfio 333; nun irigafed field or dry land can be farm sustainably if as minimum as 10 % of the net income used for conservation practices; potato, pepper and chickpea represent most beneficial vegetable crops if as minimum as 5 % ftom the net income used for the conservation praekes. An apprvpriate conservafion pracfioe was credit terrace, because it can be consfructed by famr sfep by sfep while soil tiiiage so that fhe land can be used sustainably.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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