Judul: Tatalaksana kesehatan peternakan sapi perah rakyat di Kecamatan Cisarua Kabupaten Bogor (Studi kasus KTTSP Baru Sireum)
Abstrak: The aim of this study was to describe the smallholder dairy farming’s management at Cisarua, Bogor. This study was conducted during January until July 2012. Respondent were consisting of 13 smallholder dairy farmer from KTTSP Baru Sireum. The data were collected by interview used questionnaires and checklist about farmers characteristic, management practices of farmers, health and reproduction management, and sanitation. Data were analyzed by using rank Spearman correlation test. The research showed that characteristics of farmers has not significantly correlation with farm management. Majority of farmers in those area were included in good category in managing their smallholder dairy farm, except in health and reproduction management and waste management.
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Judul: Analisis tingkat efisiensi penggunaan faktor-faktor produksi pada usaha peternakan sapi perah rakyat di Kecamatan Cisarua Kabupaten Bogor
Abstrak: Latar belakang penelitian ini adalah: (1) wilayah Kecamatan Cisarua sebagai salahsatu daerah sentra produksi susu di Kabupaten Bandung, (2) peningkatan produksi susu pada usaha peternakan sapi peran rakyat, (3) perlu diperhatikan imbalan yang diterima peternak dengan adanya laju peningkatan produksi susu. Penelitian ini bertujuan untuk : (1) mengetahui pengaruh faktor produksi makanan ternak, persentase sapi laktasi dan tenaga kerja terhadap produksi susu, (2) mengetahui tingkat efisiensi penggunaan faktor-faktor produksi yang dilaksanakan peternak sapi peran rakyat. Adapun metode penelitian yang digunakan adalah studi kasus. Jumlah peternak contoh yang diambil adalah sebanyak orang yang diperoleh secara acak sistematis. Teknik pengumpulan data dilakukan dengan cara pengamatan langsung dan menggunakan instrumentasi kuesioner untuk wawancara. Pengumpulan data dimulai dari tanggal 9 Pecruari sampai dengan 9 Maret 1988.
Keyword: sapi perah

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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