Judul: Identifikasi Jenis Hijauan Makanan Ternak di Kawasan Usaha Peternakan (KUNAK) Sapi Perah Kecamatan Cibungbulang dan Pamijahan Kabupaten Bogor
Abstrak: KUNAK is a dairy farm area which located at Cibungbulang and Pamijahan district, Bogor regency, it was built on 1995. The aim of this research was to identify types of forage of areas in KUNAK diversity analysis, and identification of its crude fiber and crude protein. This research used ArcGis application, descriptive analysis, proximate analysis, botanical composition analysis, and vegetation analysis. The result of botanical composition in KUNAK 1 is Ottochloa nodosa (Kunth) 11.83 %, Brachiaria ruziziensis Mez. 10.34 % and Pennisetum purpureum Schum. 8.88 %, while in KUNAK 2 Pennisetum purpureum Schum. 14.24 %, Ottochloa nodosa (Kunth) 13.37 % and Eleusine indica L. Gaertn 7.40 %. Based on vegetation analysis, vegetation diversity in KUNAK 1 and 2 were clasified as medium. The result of proximate analysis, crude protein (CP) and crude fiber (CF) Ottochloa nodosa (Kunth) were 9.1 % and 28.4 %, Brachiaria ruziziensis Mez. 7.4 % and 25.4 % and Pennisetum purpureum Schum. 8.6 % and 30.7 %.
Keyword: KUNAK, forage, dairy cattle, botanical composition

Judul: Jenis dan Kualitas Nutrisi Pakan di Peternakan Rakyat KUNAK Cibungbulang Bogor sebagai Dasar Penyusunan Formulasi Ransum
Abstrak: The research was aimed to identify type of feed that used by farmers in Cibungbulang Bogor and find out nutritional content as basis for formulation of feed rations. This study uses descriptive analysis to describe type and quality of feed used and T-test were used to compare quality of forage and agricultural waste in dry season and the rainy season. Type of forage used in KUNAK among others field grass, grass taiwan, king grass, hawaii grass, rice straw, corn husk, and cabbage waste. Concentrates used are tofu, tempe waste, rice bran, and concentrates. Formulation results based on the average performance of lactating cows using available feed, consisted of Taiwan grass 48%, and concentrates A from Bogor 18%, field grass 10%, rice bran 10% and 14% tempe waste. Formula contained 16.5% CP, 21.5 CF%, 70.6% TDN, 0.45% Ca and 0.28% P.
Keyword: season, forage types, feed nutrition, feed formulation

Judul: Kekonsistenan Hamiltonian pada Gerak Gelombang Interfacial
Abstrak: The interfacial wave is an internal wave that occurs at boundary of two layers fluid. It appears because there is difference of mass density between the two layers. The objective of this thesis is to formulate the motion of internal wave with flat base and flat as well as free upper bound surface. The motion equation obtained is a Hamiltonian system. The Hamiltonian in this system is expressed by variable of wave deviation and horizontal component of potential velocity. Under assumption that interfacial wave moves only in one direction, it can be shown that the Hamiltonian depends on the solution of the wave motion equation. The coefficients of the equation depend on the physical characteristics of the two layers of fluid, i.e. thickness and mass density. The numerical results show that Hamiltonian in the system is constant. It is consistent with Hamiltonian characteristic, which does not depend on time.
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