Judul: Karakteristik karkas dan non karkas Domba Lokal betina yang berbeda bangsa di TPH Maleber Bogor
Abstrak: Sebanyak 119 ekor domba lokal betina yang terdiri dari 18, 76 dan 25 ekor domba garut (DG), domba ekor tipis (DET) dan domba ekor gemuk (DEG) digunakan untuk mengevaluasi karakteristik karkas dan non karkas di tempat potong hewan (TPH) di Maleber bogor. Data karkas dan non karkas dianalisis menggunakan Analysis of Covariance (ANCOVA). Bobot potong domba sebagai covariable. Hasil penelitian menunjukkan bahwa bobot potong, bobot karkas. bobot tubuh kosong dan persentase karkas antarbangsa tersebut tidak berbeda nyata (P>0.05). Tidak ada perbedaan signifikan antar bangsa dalam komponen bobot bobot non karkas, kecuali ginjal dan kaki. Tidak terdapat perbedaan yang signifikan antar bangsa dalam persentase komponen non karkas, kecuali persentase ginjal. Secara umum, DG, DET dan DEG yang disembelih pada bobot potong 20.46 kg. 15.67 kg dan 15.98 kg menghasilkan masing-masing persentase karkas 46.62%, 46.77% dan 47.71%, dan persentase non karkas 33.56%, 32.73% dan 33.32%.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Breeds, Carcass, Local sheep, Non carcass, Slaughterhouse

Judul: Karakteristik Karkas dan Non Karkas Domba Ekor Tipis Betina dengan Bobot Potong yang Berbeda di TPH Maleber Bogor
Abstrak: The purpose of the research was to evaluate the characteristics of carcass and non carcass of thin-tailed sheep (DET) on different live weight in TPH Maleber, West Java. Research used 56 heads of DET ewes. The sheep grouped into live weights at 10 kg, 20 kg and 30 kg. Data were analyzed by Analysis of Variance (ANOVA). The result of the research showed that the differences of live weight were significantly (P<0.01) influenced on empty body weight and carcass weight. DET that were slaughtered at 30 kg was heavier on carcass percentage compared to 20 kg. The average percentage of carcass at live weight 10 kg, 20 kg and 30 kg was 46.09%, 42.87% and 49.56% respectively. Non carcass components of DET were slaughtered at 30 kg was significant (P<0.01) heavier than live weight of 20 and 10 kg. The percentage of edible portion of non carcass was of 42%-48% of empty body weight.
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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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