Judul: Komposisi Jaringan Pada Potongan Karkas Domba Garut Dan Ekor tipis Umur Enam Bulan Dengan Ransum Berbasis Indigofera sp
Abstrak: Meat from younger lamb is more desirable than that from older lamb. The objective this study was to investigate the effect of breed from local sheep on carcass tissue composition and distribution within wholesale cuts. The experiment used four Garut and four Thin Tail lamb aged three months old. They were fattened for three month with pelleted ration comprising 30% Indigofera sp. and 70% concentrate. The results showed that carcass composition and distribution within wholesale cuts were similar between Garut and Thin Tail lamb. Garut lamb carcass had significantly higher twelveth rib fat thickness than that from Thin Tail lamb carcass. The results of this study indicate that Garut and Thin tail lamb had a meat yield, fat, and bone percentages of 62.48%, 13.62%, and 23.89% respectively. Garut sheep had significantly higher (P <0.05) back fat thicknesethan the thin tail lamb.The meatfrom the “breast” and “shank”cut were significantly higher (P <0.05) in Garut lamb compared Thin Tail lamb.
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Judul: Komposisi Potongan Komersial Karkas Domba Garut Umur Sebelas Bulan dengan Ransum Penggemukan Mengandung Limbah Tauge dan Indigofera sp.
Abstrak: Lamb is a small ruminant which produces meat for human consumption. The purpose of this study was to examine the influence of ration on carcass characteristics and composition. Eleven male Garut lambs of eight month old were used in the study. They were divided into two groups and given ration containing mung bean waste and Indigofera sp. respectively and fattened for three months. Parameter observed include carcass characteristics, carcass tissue component and distribution within commercial cuts. The result showed the Garut lamb that was given difference ration containing was significantly higher (P<0,05) to slaughter weight, empty body weight, carcass weight, percentage of carcass compared to that fed on ration containing Indigofera sp. Carcass tissue composition include meat and bone weight of Garut lamb fed on mung bean waste ration containing significantly (P<0,05) hevier compared to that fed on Indigofera sp. Meat and bone in carcass tissue distribution within commercial cuts was significantly different, it can be seen from rack, leg, breast, and shank cut
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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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