Judul: Karakteristik susut masak dan organoleptik ayam broiler goreng akibat penambahan sigi indah dalam air minum selama pemeliharaan
Abstrak: Most of Indonesian prefers chicken meat to the others because it is the cheapest above all. Although at recent time there has been a lot of broiler breeder, but their production was not optimal yet. One of the problems comes from their low feed quality.It can be improved by adding feed supplement to broilers drinking water. This \\;ill affect its nutrition value. Together \with organoleptic, which is determine consuniers preference, and physical quality, they \will influence broiler meat quality. This research was conducted to study the effect of Sigi Indah feed-supplement added to drinking water during rising time to organoleptic and cooking loss characteristic of broiler meat. Sigi lndah \tias chosen because it is natmlJorganic feed supplement which contain minerals, microbe and amino acids that very potential to substitute synthetic feed additive.This research used 1,050 broilers w\.hich distributed into seven level of treatment (0.0; 0.25; 0.5; 0.75; 1.0; 1.25; 1.5 percent of Sigi Indah) \\.it11 thirty head each cage. Feed and drinking water were given ad libitum. Breast meat \\;as used as evaluated sample. The research \t~usse d Completely Randomized Design with seven level of treatment and three replication. Parameter measured was cooking loss and organoleptic quality (color, taste, texture and aroma). Data from organolepiic test \\?as analyzed by descriptive analize, while cooking loss used ANOVA and polynomial orthogonal test. The result showed that broiler meat with P2 treatment have the higgest acceptance percentage. The treatment also didn't have significant effect to meat's cooking loss. Ke).7eords: broiler, Sigi Indah, organoleptic, cooking loss
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Judul: Performa dan nilai ekonomis ayam broiler yang diberi feed additive "Sigi Indah" dalam air minum
Abstrak: This study was conducted to investigate the effect of feed additive "SIGI INDAH" on broiler's performance, economical value and to get suitable level of the addition of "SIGI INDAH". The experiment was conducted in Completely Randomized Design using 840 day old chicks (DOC) Cobb 500 strain. Seven levels of "SIGI INDAH (0%, 0.25%, 0.50%, 0.75%, 1.00%, 1.25% and 1.50%) were added to drinking water of broiler as the treatments. Each treatment had 4 replication with 30 broilers. Growth performance (feed intake, BW gain, FCR and mortality) were obtained through 35 days. Cumulative feed intake at day 35 was improved (P< 0.05) in broilers given 0.50%,,0.75%, 1.00%, 1.25% and 1.50% compared with that of 0%. BW gain, FCR and water consumption were no significant difference among treatment. Mortality was higher for broiler consuming 0.50% compared to the other treatments. The average of IOFCC for broiler received "SIGI INDAH" (Rp 2,458.60) lower than those for 0% (Ru 3,320.95). In conclusion, feed additive "SIGI INDAW did not improve broiler's performance and give profit. Key words : broiler, feed additive, performance, ZOFCC
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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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