Judul: Pattern of Development Area of Beef Cattle at Aceh Besar District in Nanggroe Aceh Darussalam Province
Abstrak: Aceh Besar district have not been able to provide a source of livestock breeds and going to meet the needs of beef cattle fattening business people, so that the dependence of the provision of livestock breeds and going from outside the area is very high. One of the potential of livestock sub-sector, especially beef cattle farms suitable for development in Aceh Besar district is breeding beef cattle. This study aims to identify the potential and pattern of development of the area of beef cattle in the district of Aceh Besar Aceh. The research was carried out on beef cattle breeding areas in Aceh Besar district, which was held in May to July 2011 through the collection data by the survey method of 280 Bali cattle and 72 farmers. The data in the form of farmer characteristics, technical and management areas of livestock farming systems were analyzed descriptively. Participation, knowledge and motivation of farmers using the Mann-Whitney test. Bali cattle body weight was measured through estimation by the method of regression analysis. The pattern of development area of beef cattle in the Aceh Besar district formulated using SWOT analysis. Based on the analysis of increasing population could reach 285.9, 225.3, 54.3, and 2 Animal Unit (AU) for each village at Saree Aceh, Sukamulia, Data Gaseu, and Bareuh. The interviews show that in general maintenance of the system using semi-intensive systems and the need for livestock feed entirely dependent on the forage consumed by livestock itself. Data characteristics of farmers on the location of the study showed that most (> 85% of respondents) breeder age ranged from 15-55 years, while over 55 years less than 15%. Farmer education levels varied, with dominated by primary (57-76%). Principal jobs as farmers and ranchers are the cultivation of cattle as a sideline business. Experience the majority of farmers still less than 5 years. Score value of knowledge, motivation and participation of cattle ranchers in Aceh Besar district showed that the breeder has a score value which is still low (<25.0) on the program area of beef cattle for breeding. The increase in population is still minus the percentage of births is still quite low and the percentage of mortality is still high enough. Bali cattle body weight for nearly every age category and gender is still low, mainly due to the management of livestock farming so productivity Bali cattle is not optimal. Development programe of the area of beef cattle in the future need to consider the quality of human resources and socio-economic conditions of farmers in developing goals. Development of the area of beef cattle in Aceh Besar district for planning and program implementation can be done by UPTD Ruminant Livestock Husbandry Department of the Aceh Besar district includes the active role of livestock farmers in a participatory manner with the priority scale.
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Judul: Kajian pengembangan peternakan sapi potong di Kecamatan Agrabinta, Kabupaten Cianjur
Abstrak: The objective of the research were 1) to know characteristic of beef cattle farmer in related to management of beef cattle farming, 2) to analyzed technical potency of beef cattle farm in Agrabinta Sub-District, 3) to analyzed farmer earning in beef cattle farm business , 4) to formulate the strategy of beef cattle development in Agrabinta Sub-District. Primary data obtained by direct interview with the beef cattle farmer, used questionnaire as the tool. Secondary data obtained from relevant institutions sources that related with the topic of the research, data analyzed descriptive corelation method. Base on data analyzed showed that technical management of beef cattle farm by farmer characterize still in the traditional system. The return cost ratio (R/C ratio) of beef cattle farm business analysis, showed that ratio as 1.51 value. It means that the beef cattle farm business were profitable. Beef cattle farm income contributed 11.11 persen to total family income or Rp. 1,054,020.26. The results from Added Capacity of Ruminant Population (ACRP) analyzed at Sinarlaut village, Bojongkaso village, Tanjungsari village, Wanasari village, Mekarsari village, Sukamanah village respectively were -903.58 Animal Unit (AU); 242.44 AU; -340.40 AU; 5096 AU; -337.90 AU, the positive value explain that in these villages can accept more beef cattle number, such Bojongkaso village and Wanasari village. The strategy of beef cattle farming development in Agrabinta Sub-District were showed at Growth Oriented Strategy, it can be implemented by making Demonstration Plot of beef cattle farm intensification, recruit more animal health officer to optimalisation of services and cooperation with other relevant institutions.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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