Browse Title Index


 
Issue Title
 
Vol 34, No 3 (2011): Forum Pascasarjana

Open University (UT) is the first university used distance learning systems. Therefore, some important aspects that must be possessed by students in this learning system is the desire and ability to learn independently, and then motivation to progress and develop. Distance teaching and learning process is basically addressed to the readiness and motivation of students to study independently. This study uses two-factor theory of motivation namely intrinsic and extrinsic motivation. Therefore, in facing the problem of student motivation, UT needs to provide excellent service to support and motivate the student. To achieve an excellent service UT must have certain skills in human resources. Based on the existing problems, the purpose of this study were to analyze the affect of intrinsic motivation, extrinsic motivation, and excellent service toward the satisfaction of a student graduate at Management Study Program, Economic Faculty of Open University. This study used crosstabs and multiple regression analysis.  From the analysis showed that significantly the affect between intrinsic motivation, extrinsic motivation, excellent service, and dummy variable of graduation period, and education level.  

Key words:  intrinsic motivation, extrinsic motivation, excellent service, student graduate satisfaction

Abstract   PDF
Devi Ayuni, Sri Hartoyo, Sukiswo Dirdjosuparto
 
Vol 34, No 4 (2011): Forum Pascasarjana

Semarang waterfront city is a unique ecosystem with a great variety of potentialities as well as problems in the utilization of natural resources, particularly in the trade-off between economic growth and ecological preservation. Based on those conditions, the research is mainly focused upon designing some scenarios on environmental management, which ensure a profitable synergy of all stakeholders without sacrificing the principles of environmental conservation. Secondly, it is to design an interaction model among variables in the bio-physic, economy and social subsystems, in order to increase sources of learning and sustainable use of natural resources. Using a dynamic system, the main inputs of the designed model are the feasibility of natural resources management as a product of extended cost-benefit analysis (ECBA), the suitable option of natural resources management, as an input of comparative performance index (CPI), the integrated sustainability of using multidimensional scaling, the suitable land-use planning through geographic information system (GIS). From those main inputs the waterfront city environmental management policy can be observed as an output of analytical hierarchy processes (AHP).  The feasibility study shows that all of natural resources management options are feasible to be developed, where sustainable management, sustainable harvest and beach protected areas depict the most feasible management options.  Based on the results of the integrated sustainability research using multidimension scaling, the management of waterfront cities has to prioritize attention to the five important factors, i.e., (1) the issues of community empowerment; (2) the rate of land utilization; (3) the contribution of the industrial sector; (4) the availability of electricity and; (5) the availability of community organizations.

Key words: sustainable environmental management, coastal and marine zone, dynamic and spatial dynamic system, waterfront policy strategy

Abstract   PDF
Bambang Kanti Laras, Marimin ., I Wayan Nurjaya, Sugeng Budiharsono
 
Vol 32, No 3 (2009): Forum Pascasarjana

Food is the basic need of every people that has to be fulfilled in order to create stable food security.  The different population growth can differ the food requirement that has to be fulfilled by self production.  Thus, this also differ food agricultural land size requirement.  The general objective of this research was to analyze food agricultural land size requirement in fulfilling food requirement of population in West Lampung District.  This research was conducted by using retrospective design and secondary data which then analyzed descriptively.  The research used some data, they were: (1) demography data year 2001-2007 from Central Bureau of Statistics,  (2) food balance sheet data year 2007 from Food Security Board of West Lampung District, (3) food consumption data year 2007 from Agriculture and Food Security Office of Lampung Province, (4) production data, productivity data, and plant index year 2002-2007 from Crops and Horticulture Office of West Lampung District, and 5) land potential of food agricultural development year 2004 from National Survey and Mapping Coordination Board. The result of the research indicates that rice requirement in West Lampung District until year 2012 can be fulfilled by production with land size utilized for rice planting in 2007.  In other hand, to reach ideal cassava production, it needs 489 hectare land size increasing with land productivity 20,22 ton/ha, per capita consumption 41,33 kg/year and population growth 1,683% per year.

 

Keywords: food requirement, agricultural land size requirement, staple food

Abstract   PDF
Sumarlin ., Yayuk F. Baliwati, Ernan Rustiadi, Wafda .
 
Vol 34, No 3 (2011): Forum Pascasarjana

After the reform era, forest management approaches tend to change from state-based to community-based.  Arising awareness about the importance of involving communities in forest management, it will not succed without support from the community.  Since 2001, Perhutani has implemented a partnership program in the form of CBFM (Joint Forest Management Society), designed to accommodate the dynamic and needs of the community.  This paper aims to study the perception of society, equality of status of the community, and to formulate alternative forestry policy.  This research was quantitative and qualitative research. Sample were taken purposively.  Research location in Perhutani office (BKPH) of Parung Panjang, KPH Bogor.  Public perceptions of CBFM are positive and able to increase revenue, income, absorb labour, and grow productive business. Biophysical condition are better with the following: the fire and illegal logging are reduced, and the rehabilitation of forest is better.  However, it is difficult for the community to get water since Acacia mangium were planted.  The level of community participation in planning and evaluation is low but high in the implementation.  The pattern of partnership is asymmetrical because the decision-making is dominated by Perhutani officers.  In the cooperative agreement, there are many inequalities positions.  CBFM is derivative of developmentalist ideology contrary to the principles of community empowerment.  The partnership is focused more on corporate interests, and is used as reducer of conflict.  Policy scenarios of CBFM are institutional strengthening, acces to forest resources, equality in forest management partnership, and productive business.

 

Key words: community forestry, partnership, equality, institutional

Abstract   PDF
Mukhlas Ansori, Endriatmo Soetarto, Dudung Darusman, Leti Sundawati
 
Vol 34, No 2 (2011): Forum Pascasarjana

Knowledge-based economics can[1] be achieved by using the role of knowledge to commercialize university research result in the agroindustry activities.  Collaboration as a model to realize transfer of technology between university and agroindustry is institutional proven model.  The use of science and technology in the new era of knowledge-based economy is expected to contribute in improvement of nation competitiveness.  Decision making in the complex, dynamic and probabilistic problem as founded in the collaboration model needs analytical tools such as analytical hierarchy process (AHP), fuzzy inference system (FIS) and artificial neural network (ANN) as well as the combination of both techniques which is one of the best method for designing Model of University and Small, Medium Agroindustry collaboration in transferring technology as a reliable model in the future.  Takagi-Sugeno-Kang Inference System is used to have input-output mapping using fuzzy logic, and artificial neural network with back propagation mechanism is used to get optimal membership parameters.  Knowledge acquisition of the experts are needed together with ANFIS (adaptive network fuzzy inference system).  After having simulation using Matlab program by combining ANFIS for Fuzzy membership function and certainty factor for non fuzzy membership function, recommendation is made on networking as collaboration pattern on transferring of innovation technology is the best choice, and fishery agroindustry using incubator technology as institution model is the best evidence of certainty factor achieved.

 

Key words: collaboration model, technology transfer, AHP, neuro-fuzzy and takagi sugeno inference


6) Fakultas Matematika dan IPA, Universitas Indonesia

Abstract   PDF
Widadi W. Widayat, Irawadi Jamaran, Bunasor Sanim, Marimin ., Amril Aman, Djati Kerami
 
Vol 34, No 2 (2011): Forum Pascasarjana

Makassar city of South Sulawesi Province has potency and opportunity to develop fisheries industry to become the biggest fisheries industry in the eastern Indonesian region.  Geographically, the Makassar city is located in a strategic eastern Indonesian region that bringing consequency to become the gate of export for trading product.  The research objectives are to create development model of fisheries industry in Makassar city base on the fishing port, to describe the existing condition of fishing activities and its influence level to formulate significant influence factors, and to formulate development strategy of fisheries industry in Makassar city.  This research was conducted from March to November 2009 in Makassar city.  Data was taken from fishery industries as respondent, such as fishing characteristic, fishing industry, management industry, export, and policy.  The result of SEM analysis showed the goodness of fit index criterias, namely: chi-square, probability, RMSEA, CFI, IFI, GFI, AGFI, and PGFI.  Based on the regression analysis on weight values of the interaction with other factors, it can be significant or non-significant relation, wherereas the significant relation is necessary.  The goverment policy on the development of Untia Archipelago Fishing Port in Makassar city is to continue fishing activity to provide materials of fishery industry.  Developing model of fisheries industry base on the fishing port with eight factors can be used to plan the fishery industry development.

 

Key words: model, fishing port, fishery industry, SEM

Abstract   PDF
Danial ., John Haluan, Mustaruddin ., Darmawan .
 
Vol 33, No 4 (2010): Forum Pascasarjana

Mangrove forest ecosystem is an important ecosystem in a coastal area in order to improve the welfare of coastal villages as well as to improve the productivity of coastal ecosystem.  The purposes of this research were (1) to identify indicators of sustainable mangrove forest ecosystem; (2) to analyze the ecological, economic and social conditions of mangrove forest ecosystem; (3) to analyze index sustainability of mangrove forest ecosystem and (4) to formulate strategies for sustainable mangrove forest ecosystem in Western Part of Seram, Maluku.  This research applied multidimensional scaling (MDS), leverage analysis, Monte Carlo analysis and analytical hierarchy process (AHP) to analyze data.  Research showed that dimension of ecology, economy, and social was high sustainable, low sustainable and unsustainable respectively.  Among 22 indicators analyzed there were 6 sensitive indicators which affected local sustainability index. These sensitive indicators should be improved to increase local sustainability index in the future.

 

Key words: mangrove sustainability indicators, mangrove sustainability index

Abstract   PDF
Debby.V. Pattimahu, Cecep Kusmana, Hartrisari Harjomidjojo, Dudung Darusman
 
Vol 31, No 4 (2008): Forum Pascasarjana

Through a nutritional improvement project, Bogor District had donated powdered milk formula (PMF) for severe malnutrition children under five years.  Powdered milk formula was assumed as an unsterilized product, because it might contain spore forming bacteria.  To evaluate the bacterial contaminant of home prepared milk formula, fourty eight samples of PMF, and 50 samples of reconstitution formula, drinking water, drinking equipment, and hand were taken proporsionally from the mothers in 10 Health Community Centre around Bogor District.  Samples were analyzed for aerobic microbe, Bacillus cereus, Clostridium perfringens, and the potential of enterotoxins production.  All of the donated PMF samples exhibiting a total aerobic count of <104 CFU/g (mean 1.2 x 102 CFU/g) and B. cereus count of <103 CFU/g (mean 3.0 x 102 CFU/g for PMF containing this bacterium).  Improper home storage promote the growth of aerobic microbe and B. cereus.  Improper preparation promote the growth of B. cereus which present initially at low level (mean 7.8 x 10 CFU/g) and became 1.6 x 103 CFU/ml after the reconstitution.  Clostridium perfringens emerge at 4 samples (mean 1.5 x 10 CFU/ml) after the reconstitution.  Several isolate of B. cereus (4 from PMF, 13 from opened PMF, and 2 from reconstution formula) showed a possibility to produce diarrheagenic enterotoxin while the isolate of C. perfringens did not shown it.

 

Keywords: powdered milk formula, B. cereus, C. perfringens, diarrheagenic enterotoxin, preparation and storage
Abstract   PDF
Maya Purwanti, Mirnawati Sudarwanto, Winiati P. Rahayu, A. Winny Sanjaya
 
Vol 34, No 1 (2011): Forum Pascasarjana

The objectives of this research were to identify gender relation, communication channels and the use of agricultural information, to analyze the correlation between gender relation and communication channels, the correlation between communication channels and the use of agricultural information. The research was conducted in the Sub-District of Pacet, District of Cianjur and Sub-District of Megamendung, District of Bogor in the West Java Province.  The research used a method of survey taking 134 samples of organic vegetable farmers consisting of 67 men and 67 women.  The quantitative data was obtained from the questionnaires given to the farmers and supported by qualitative data collected by in-depth interviews.  The research results indicate that men often used personal communication, but women seldom choose the personal channel.  Both men and women seldom used the mass media channel.  Both men and women often use agricultural information for themselves for practice and comparison but seldom for discussion with others.  Men and women were both active in information seeking and discussing the received information, but in the control of agricultural information men were more dominant than women.  Among women, the group had a significant relationship with information control, whereas among men the mass media had a significant correlation with information control.  The agricultural information from a personal channel was used by men for themselves for the purpose of practice, comparison, discussion, or diffusion.  However, among women, the agricultural information was used for comparison, discussion, and diffusion. The group channel omong men was used to diffuse agricultural information whereas among woman it was for comparison, discussion and diffusion.  The agricultural information from the mass media was used by men for their own knowledge, comparison and diffusion.  Women liked to discuss agricultural information with husbands and families.  

 

Key words: communication channels, access, control of agricultural information, gender

Abstract   PDF
Krishnarini Matindas, Aida V.S. Hubeis, Amiruddin Saleh, Harsono Suwardi
 
Vol 34, No 1 (2011): Forum Pascasarjana

Tourism development should also pay attention to social components exist in the area, beside the physical and biological condition.  Data were collected through literature review and in depth interview.  There were 131 respondents consisted of government official (village head), community’s elders, non governmental organization, tourism entrepreneur, and community members which were not involved in tourism activities.  Interaction between individuals of the community members in Gunung Sari Village showed more variations compare to Gunung Bunder 2 Village, due to background variation of community members.  In general, both villages showed positive primary interaction between individuals and groups, since all individuals in a certain group share the same interest and objective.  While interaction between groups were emphasized more on the short term economic interest of nature-based tourism activities rather than the long term nature based tourism development.

 

Key words: social components, nature-based tourism, Gunung Salak Endah, community

Abstract   PDF
Eva Rachmawati, Harini Muntasib, Arzyana Sunkar
 
Vol 33, No 1 (2010): Forum Pascasarjana

The objectives of this research were; (1) to analyze production efficiency and profitability of smallholder rubber monoculture and smallholder rubber agroforestry systems, and (2) to find out the effects of policy distortions towards rubber production under smallholder monoculture and smallholder agroforestry. Smallholders are not only judged by yield per hectare; economic efficiency is not only a matter of returns to land and returns to labor but smallholders can adopt low input strategy, continue making profits at prices that would be economically viable. Such flexibility offers the possibility of efficient resource allocation in response to diversification of economic opportunities.  The policy analysis matrix (PAM) with the domestic resource cost (DRC) results under the baseline scenario indicated that the use of domestic resources in production of rubber was efficient and socially profitable under the two systems but more desirable under monoculture system given the current prices for physical inputs, outputs, technologies and policy transfer. However, even with sensitivity analysis of 10% increase in the price of rubber holding other factors constant does not make rubber agroforestry system more efficient than its counterpart and a 20% fall in price of rubber made rubber production under agroforestry system less efficient and undesirable.  All measures are compared to the alternative policy indicators currently used. Therefore, recommendations made from this study relate to the need for diversification into better practices that can sustain efficient rubber production under the agroforestry system, encouraging private sector participation and reducing disincentives to rubber production.

 

Key words: smallholder rubber agroforestry, economic efficiency, policy analysis matrix
Abstract   PDF
A. Rodgers, Bonar M. Sinaga, Suseno Budidarsono
 
Vol 34, No 3 (2011): Forum Pascasarjana

The objective of the study are to analyze the level of technical efficiency of the production of  red chili,(b) to analyze factors that influence the production of red chili, (c) to analyze the social-economic factors that affect inefficiency technically of red chili, and (d) to analyze the behavior of red chili farmers in facing price risk. The stochastic production frontier is used to estimate the production function. Results showed that most variables, both technical and socio-economic factors, have signs as expected and most significant. The average level of technical efficiency (TE) for both big red chili and curly red chili are 0.83 and 0.86, respectively. Several socio-economic factors that significantly affect technical inefficiency includes total income, ratio income of red chili on the total household income, ratio of red chili farming plots to the total cultivated land, and variable experience of peasant households in red chili. The behavior of big red chili farmers in facing the price risk is risk averse, meanwhile curly the red chili farmers is a risk taker. Important policy implication is to increase technical skills and managerial capabilities at less than 0.80 technical efficiency group. Future technological development can be done by good agriculture pratices and standar operating procedure on red chili farming, that is hybrid seed use, balance and complete fertilizer use, manure use and integrated pest management practices.

 

Key words: technical efficiency, risk, stochastic production frontier, red chilies
Abstract   PDF
Saptana ., Arief Daryanto, Heny K. Daryanto, Kuntjoro .
 
Vol 30, No 1 (2007): Forum Pascasarjana

Fish is a perishable product, and thereby needs a special treatment to prolong its shelf life. Traditionally, drying is a common treatment for the purpose, especially by using sun drying. This paper is devoted to the study of histiophoridae fish  drying using a truneated  trapezoidally shaped green house effect solar dryer  in order to maximize the  use of solar energy. The drying system used different size of racks and tray following the dimension of the structure so as to minimize empty space.  The dryer was   equipped with 25  watt DC blowers to remove  the moist air.  From two experimental runs, the results show that the system can properly dry the histiophoridae fish to its desired moisture content, which ranged from 30.08% (wb) to 32.80% (wb).  Utilization of the truneated  trapezoidally shaped green house effect solar dryer was found to be effective in enhancing the absorbtion of solar irradiation not only by the heat absorber but also by the producs on speated the vertically arranged racks. Solar PV modules were used to power inlet  exhaust fans as well as for temperature control. A PCM energy storage was also provided to provide heating  during night time.

 

Keywords: fish drying, trapezoidal shape green house, solar drying, PCM heat  storage, PV modul temperature control

Abstract   PDF
Binsar Nababan, Kamaruddin Abdullah, Armansyah H. Tambunan, A Harsono Soepardjo
 
Vol 33, No 2 (2010): Forum Pascasarjana

The objectives of this research are: (1) To analyze labor structural transformation in West Java Province, (2) To analyze linkage intersector on labor structure transformation process interfarm, industry and other sectors, (3) To analyze impact of fiscal decentralization on economic growth and labor structure transformation in West Java Province.  In order to answer the above, a simultaneous equation model was established, consisting of 32 structural equations and 15 identity equations.  Furthermore, this research used data pooling where data were analyzed with descriptive analysis, econometrics model, as well as predictions using a variety of policy scenario alternatives.  Model was then estimated by 2SLS method with SYSLIN procedures, while prediction simulation was performed by using SIMNLIN procedures.  In its development era, West Java province have done transformation structure of labor.  During this labor structure transformation process, the decrease on agricultural sector contribution was not automatically followed by increase in labor contribution in industrial sector since it was absorbed by other sectors such as the informal ones.  The increase in local taxes receipt gave a positive impact on output growth, but it had a negative impact on agriculture labor, and it had lead to labor structure transformation.  The result also showed that an increase in personel current expenditure and regional income from DAU gave a positive impact on agriculture output growth and it had not lead to labor  structure transformation.  Next, the increase development expenditure for agriculture gave a positive impact on output growth agriculture, but it had a negative impact on total output growth and it had not lead to labor structure transformation.  Expenditure for infrastructure had a positive impact on output growth, and it had lead to labor structure transformation.

 

Key words: fiscal decentralization policy, economic growth, labor structure transformation, simultaneous equation model

Abstract   PDF
Muhammad Arief Dirgantoro, Sjafri Mangkuprawira, Hermanto Siregar, Bonar M. Sinaga
 
Vol 32, No 4 (2009): Forum Pascasarjana

The objective of this research is to formulate a specific model of Citarum’s watershed and its coastal management policy.  The method applied in the research is the descriptive method or retrospective through a study case with an approach system.  The multidimensional systematic approach is applied to formulate policies, to develop scenario strategies involving several stakeholders and experts on coastal areas and regional and inter sectors.  The results of the research determine that the economical value relating with the aspects of pollution which in general involves replacement costs indicate impacts of pollution from public activities in the coastal stream in de facto costs Rp 31 billion/year.  The Index Value of a Sustainable Watershed and Coastal Management System (IkB-SIPPDAS) applied in the study area according to a multidimensional Rap-SIPPDAS method for upland, center and downstream area of the Citarum’s Watershed are 38.23; 38.27; and 33.59 respectively in a sustainability scale of     0-100, showing a non-sustainable status.  The analysis result for every dimension of development management indicates that the economical dimension for the upland, middle and coastal part of the Citarum Watershed contains the highest index rate, which amounts up to 88.29.  The index value is categorized ”good” or sustainable with the lowest value in ecology.  The results of the statistics indicates that the Rap-SIPPDAS method is effective enough for application as a method to evaluate the Watershed and Coastal Management System in a specific river stream or a rapid appraisal area.  The selected ideal design of the three scenarios for the watershed management policy and West Java’s Citarum coastal area is the progressive-optimistic scenario stressing the possible future condition to receive maximum support or in other words the scenario is based on the scientific way of thinking and being optimistic about the future.

 

Key words: watershed, coastal, scenario, system, management, pollutant, policy
Abstract   PDF
Edwarsyah ., Tridoyo Kusumastanto, Hartrisari Hardjomidjojo, Ario Damar
 
Vol 33, No 3 (2010): Forum Pascasarjana

The government of Kutai Kartanegara Regency indicates that the problem of shrimp pond’s business production and profit has been going down and being stagnant in Muara Badak.  It is caused by capital source i.e own capital, ponggawa, bank loan and government loan.  And directly capital source influenced different of quantity, input and output cost.  In fact, the performance of lending mechanism is inefficient.  The objectives of this research were to analyze the effect and capital source condition and lending mechanism of capital source to production and profit.  Econometrics approach was used to solve the problem through production and profit function.  OLS and IPA were applied in this research.  The result of estimated parameter and perception of fish farmer related to lending mechanism were used as policy implication.  The result showed that capital loan from ponggawa, bank, and government were used only as working capital and the mechanism of capital loan from ponggawa was better than the other.  It was caused by easier requirement and procedure application for lending is better facility and its services, free of charge lending mechanism and relatively clearance time of credit.  Production rate of fish farmer who related to ponggawa were lower than the other.  However, profit rate of fish farmer who related own capital were higher than the other.

 

Key words: capital source effect, shrimp pond production, Muara Badak, Kutai Kartanegara

Abstract   PDF
Handayani Boa, Yusman Syaukat, Idqan Fahmi
 
Vol 31, No 3 (2008): Forum Pascasarjana

The objectives of this research were analyzing the performance of agricultural  sector and agroindustry, relation between fiscal policy and performance of agricultural sector and agroindustry; analyzing fiscal policy instruments which were effective in influencing the agricultural sector performance and agroindustry performance, and relation between agricultural sector performance and agroindustry performance within fiscal condition of Indonesia. Data time series 1970.1 – 2005.5 were analyzed with Vector Error Correction Model (VECM).  Research results showed that decrease in the performance of agriculture sector occurred in all aspects and its role in the economy, and the same phenomena occurred also in agroindustry.  Instruments of fiscal policy which in the long term affect strongly the performance of agricultural sector and agroindustry were budgets for the following: sector of agriculture, agricultural research and development, agriculture infrastructure, and fiscal decentralization. Performance respond of agricultural sector and agroindustry toward shock  of fiscal policy instruments, to achieve stability, took relatively long period (9 and 8 years respectively). Performance respond of agroindustry toward shock of agricultural sector, to achieve stability, took 6 years period.  Instruments of fiscal policy which were in the long term effective in improving  agricultural sector performance were value added tax, agriculture subsidy, budget for agriculture research and development, budget for agriculture infrastructure, and fiscal decentralization.  Instruments of fiscal policy which were in the long term effective in improving the performance of agroindustry were income tax, value added tax, budget for agriculture infrastructure, and fiscal decentralization.  Performance of agricultural sector which had roles in affecting the variability of agroindustry performance were GDP of agriculture, export and import of agricultural products.

Key words:  fiscal policy, agricultural sector, agroindustry
Abstract   PDF
Darsono ., Mangara Tambunan, Hermanto Siregar, D. S. Priyarsono
 
Vol 31, No 2 (2008): Forum Pascasarjana

Although tuna fisheries have significant role on Indonesian fisheries, concept for integrated tuna fisheries development in South Java Waters have not been implemented yet.  This study was aimed to design model for tuna fisheries development in South Java Waters.  Because of fisheries is a complex system, therefore the system approach was applied in this study.  The system design, named SIMPENA model, consist of three submodels, there are (1) fisheries business (USAHA), (2) fishing port requirement: functionality and accessibility (PELABUHAN), and (3) policy and institution (LEMBAGA).  The result of this study indicated that the tuna business is a very high risk business.  Government policies which contribute a little support to the business cause a big impact for the business continuity.  There is only a few number of fishing port that could support the tuna business in this region, namely PPS Cilacap and PPN Palabuhanratu.  The development strategic analysis by using interpretative structural modeling technique resulted seven elements which playing an important role for succeeded the system.

 

Key words: system design, development, fisheries, tuna, South Java Waters
Abstract   PDF
Tri Wiji Nurani, John Haluan, Sudirman Saad, Ernani Lubis
 
Vol 31, No 1 (2008): Forum Pascasarjana

The research aims to find out the existence and the most dominant rotifera in coastal territorial waters and estuaries in North Sulawesi, and their relationship with temperature, salinity, turbidity, dissolved oxygen, and nutrients.  The research was conducted in Manembo-nembo, Minanga, Wori, and Tumpaan.  Identification of rotifera revealed three species of rotifera from all locations, i.e. Brachionus rotundiformis, Brachionus caudatus, and Brachionus quadridentatus, with abundance value of 1984.4 ind/m3; 26.1 ind/m3; and 212.9 ind/m3 respectively.  Result of analysis indicates that abundance of those three rotifera are significantly different both between locations and sampling sites.  The  abundance of B. rotundiformis in Manembo-nembo and Minanga is higher compared to those in Wori and Tumpaan.  The abundance of B. caudatus is higher in Manembo-nembo and Minanga compared to those in Wori and Tumpaan.  The abundance of B. quadridentatus is also different from the other two species, the abundance is sifnificantly different in Minanga compared to those in Manembo-nembo and Tumpaan, but is not significantly different with those from Wori.  The highest abundance of B. rotundiformis was found in brackishwater pond and the lowest was in coastal area.

 

Key words: bioecology, rotifera, coastal water, estuary
Abstract   PDF
Joice R.T.S.L. Rimper, Richardus F. Kaswadji, Bambang Widigdo, Nawangsari Sugiri
 
Vol 33, No 3 (2010): Forum Pascasarjana

Farming model of the crop livestock system in the paddy field is located at Cianjur Distric.  The crop livestock system is an effort to increase rice production that be integrated with livestock.  The purpose of the assessment was to find out the role of cattle on the farmer income through the integrated farming system based on the technology innovations on Cianjur district.  The integration pattern was the utilization of plant straws as feed and manure for fertilizer.  Integrated farming system that has been introduced are paddy planting, livestock fattening, and paddy straw fermentation  for food and also ecreement of livestock for organic fertilizer processing.  The assessment involved livestock and 5 ha paddy planting area.  The farmer consist of 2 groups ie.: 20 cooperator group (integrated system), and 10 control (non integrated).  The assessment results showed that rice yield was 5.34 tons/ha of dried ground rice, an increase of 16.09% compared to those yielded by other farmers.  The use of inorganic fertilizer decreased urea to 100 kg/ha (N 71.43%), SP-36 50 kg/ha (50%), KCl 50 kg/ha (50%).  The average of daily weight gain was 0.89 kg/cattle daily.  The income of farmers with the integrated farming system was Rp 9,417,907 for ones hectare land and 2 beef cattle with R/C ratio of 1.27. The average organic fertilizer yielded was 5 kg/cattle daily, the rice straw yielded was 13.20 tons/ha/year.  The C/N ratio of composted feces was 19.03%.  Total income from paddy (5 ha) and livestock (20 heads) integrated farming system about Rp 24,867,500 and Rp 60,675,333/season and provide R/C value about 1.44, meanwhile R/C value of non integrated farming system about 1.33.  It means, paddy and livestock integrated farming system could increase farmer’s income about 69,45% per season compared to non integrated farming.

 

Key words: integration, paddy, livestock, fermentation

Abstract   PDF
Ruli Basuni, Muladno Basar, Cecep Kusmana, Suryahadi .
 
Vol 32, No 3 (2009): Forum Pascasarjana

Household  farmers have allocated the family labour resources to their cattle farming that contribute to farmers’ income generation and distributed to their household expenditures.  Household farmers face the transaction cost during the production process.  The highest transaction cost, the least income allocation. The objectives of the study were (1) to develop household  economy model in the corn-cattle farming system include transaction cost and (2) to analyze factors influencing the input use, output, income generation and expenditures of household farmers.  A survey was used to gather and collect information of 194 household farmers that sampling by simple random.  Simultaneous equations model with to SLS method was used to estimate the parameter.  The result showed that household economy model could describe promptly the impact of transaction cost.  The transaction cost significantly affected the farmers behavior on production decision, the use of production input and family labor as well as consumption expenditures.  A change on the policy of increasing output price, transaction costs of the cattle intermediaries and corn transport cost have affected the farmer’s household economic performances.

 

Key words: transaction cost, household economics, corn-cattle farming systems

Abstract   PDF
Femi Hadidjah Elly, Bonar M. Sinaga, Sri Utami Kuntjoro, Nunung Kusnadi
 
Vol 31, No 1 (2008): Forum Pascasarjana

Integrated crop-livestock systems program with special reference to rice field and beef cattle is a potential alternative to support the development of agriculture sector in Indonesia.  The implementation on this integrated program was to enhance rice production and productivity through a system involving beef cattle with its goal on increasing farmers’ income.  The impact of integrated crop- livestock systems program to household economy farmers was studied in order to identify factors influencing behavior of farmer’s decision-making along with its interrelation between factors.  Impact of changes due to the external policy options was also assessed and farmer’s characteristics were described descriptively.  Five districts in the province of DIY, Central Java and East Java with 274 farmers were purposively used in the study. Simultaneous equations model with two SLS method was used to estimate the parameter, followed by the non-linear simulation approach.  The results show that most of the explanatory variables significantly affected to its endogenous variables.  Rice production is responsive to harvested land area which influenced by its volume of input rice derived demand.  The volume of its input derived demand also influences cattle and compost production.  Family labor utilization for rice and cattle production and their time allocation on non-farm and off farm jobs are related to each other. Input price of rice and live cattle are affected to their derived demand function.  Rice consumption is responsive to its price which the lower the price, the higher its consumption.  Credit on crops farm that has to be paid by farmers is also responsive and positively related to its commercial credit rate.  Effect of a 10 percent increase on output and input price of production rice, cattle and compost will increase their production; hence will also increase farmers’ income and the expenditures. This will apply to farmers that involved in a program of integrated crop-livestock systems.  On the other hand, alternative policy of combination between a 10 percent increase of output price along with 5 percent increase on its input price yield in the increasing production for farmers that are not involved in the crop-livestock systems program, hence will also increase the income.

 

Key words: household economics, simulation analysis, crop-livestock systems

Abstract   PDF
Atien Priyanti, Bonar M. Sinaga, Yusman Syaukat, Sri Utami Kuntjoro
 
Vol 32, No 2 (2009): Forum Pascasarjana

Agroforestry adoption studies about farmer’s decision making on tree planting have been conducted for many cases, but there was an important aspect that still had less concern about farmer views especially how they choose the plant species and planting pattern and why they do that.  The aim of this study was to explain the farmer’s reasons when they choose a plant species and planting pattern with different land tenure systems, state forest and private land.  Method used in this study was a case study through analyzing plant species and planting pattern selection, financial flow, and household revenue structure.  The results showed that: the farmer’s reasons were (1) cash income, (2) production continuity, (3) gestation period, (4) easy maintenance and harvest, (5) easy post harvest process, (6) tolerance to be planted with other plants, and (7) land tenure security (especially in state forest land); most farmers chose cacao species, with the main combination of planting patterns that consist of  cacao and banana in state forest land, cacao and petai, cacao and durian in private land; and all the planting pattern were financially feasible; the largest contribution was given by cacao at all planting patterns based on farmer household revenue structure.

 

Keywords: farmer’s decision making, crop and planting pattern selection, agroforestry

Abstract   PDF
Indra G. Febryano, Didik Suharjito, Sudarsono Soedomo
 
Vol 32, No 1 (2009): Forum Pascasarjana

Antimicrobial activity of pliek u oil and pliek u crude extracts were evaluated against seven bacterial strains (Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Salmonella Enteritidis, Bacillus cereus, Pseudomonas aeruginosa, Pseudomonas fluorescens) and one fungal strain (Candida albicans).  Pliek u oil has been used as cooking oil and medicinal of skin diseases, wound, fever, headache and stomache.  Pliek u has been consumed as spices and sambal, and also used for feed poultry.  These foods collected from home industry at Redeup village in Aceh Besar, Nanggroe Aceh Darussalam.  The hexane and ethanol extracts of pliek u were obtained by standard method.  The antimicrobial activity was detected using paper disc method and the concentration of crude extract was determined by  dilution method.  Among antimicrobials extracts tested, the ethanol crude extract (EEP) was most active against all microbial strains.  The ethanol crude extract obtained from pliek u previously extracted by hexane (EERH) was active toward bacterial strains and only hexane crude extract was active against C. albicans.  The results indicated that ethanol crude extract (EEP) showed antimicrobial activity at a Minimal Inhibitory Concentration (MIC) and a Minimal Microbicidal Concentration (MMC) at 2.5-10 mg/ml and  10-20 mg/ml, respectively. EEP was still active at 100ºC, 121ºC for 15-60 minute, 28ºC (room storage), 10ºC (refrigerator temperature), both for 1-6 months and at pH from 1-11. The results of the research concluded that EEP showed significant antimicrobial activity.

 

Key words: pliek u, coconut fermentated, antimicrobial activity, toxicity test
Abstract   PDF
Nurliana ., Mirnawati Sudarwanto, L.I. Sudirman, Anastasia Winny Sanjaya
 
Vol 32, No 1 (2009): Forum Pascasarjana

Avian Influenza (AI) is well known as Avian flu, Fowl pest, Fowl plaque, or Flu burung, caused by influenza virus type A.  This virus is belonged to Orthomyxoviridae and could infect many kind of species such as bird, pig, horse, cat, as well as human.  Vaccination is applied to control the disease using inactivated vaccine, which induced the specific antibody against H5 antigen.  Passive immunization using specific antisera against H5 antigen is thought to be usefull in controlling the disease especially in the treatment of infected host.  In this experiment the neutralization ability of specific antisera against H5 were studied using various field viral isolates subtype H5N1.  Antisera was developed in Cavia porcellus which vaccinated with AI subtype H5N1 in activated vaccine.  The titre of antisera obtained is 28 used HI test.  Four AI virus subtype H5N1 isolates from 2003 to 2006 agains viral were we as tested virus.  The neutralization test showed that the sera were able to neutralizing 10 4 EID50 AI virus H5N1 with neutralization index range of 1.1-1.3.  The result indicated that the specific antisera had the neutralization potency to the field virus.

 

Key words: avian influenza, neutralization test, neutralization index
Abstract   PDF
Andrijanto H. Angi, I Wayan Teguh Wibawan, Sri Murtini
 
51 - 75 of 161 Items << < 1 2 3 4 5 6 7 > >>