Judul: Karakteristik Estrus dan Tingkat Kebuntingan Domba Garut dengan Penambahan Minyak Biji Bunga Matahari (Helianthus annus) pada Ransum
Abstrak: The purpose of this research was to observe the garut sheep consumption of nutrients,characteristic responses and pregnancy rate which was given the addition of sunflower oil (Helianthus annuus) in the ration. The research was conducted based on completely randomized design with 4 treatments were P0 (control ), P1 (with 2 % addition of sunflower oil), P2 (with 4 % addition of sunflower oil), and P3 (with 6 % addition of sunflower oil ), and 8 replications. The data were analized by ANOVA and continued with Duncan test if there were mean differences. Analysis of data used SPSS 16.0 and presented descriptively. The result showed the addition of sunflower oil significantly (P<0.05) reduced dry matter consumption and very significant (P<0.01) reduced the consumption of crude protein, calcium, phosphor and increased crude fat. The fastest onset estrous found in P3 treatment and the longest estrous found in P1 treatment. The P2 treatment resulted in good response (75%) with the highest pregnancy rate (62.5%).
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Judul: Suplementasi Minyak Biji Bunga Matahari (Helianthus annus)pada Ransum Terhadap Konsumsi dan Penampilan Domba Garut Bunting
Abstrak: This research was conducted to evaluate effect of sunflower seed oil supplementation on feed intake and performance of ewe during pregnancy. This research used completely randomized design (CRD) with 4 treatments and 3 replicates. Treatments that used were P0 without sunflower seed oil,P1, P2, P3 were supplementedwith 2%, 4%, and 6 % sunflower seed oil respectively.Parameters observed in this experiment included dry matter intake, nutrient intake, daily body weight gain, feed efficiency and body condition score (BCS). Data were analyzed using analysis of variance (ANOVA).If means were significantly different, it would be further tested by Duncan multiple range test. The results showed that supplementation of sunflower seed oil did not effect different on nutrient intake, crude protein intake, weight gain, and feed efficiency but sunflower seed oil significantly affected intake of crude fat , crude fiber,calcium and phosphor. Supplementation of sunflower seed oil could improve BCS which was better than control.Suplementation sunflower seed oil untillevel 6% s canincrease fat intake, reduceintake of crude fiber, calsium and phosporbut it doesn't disturb the performance of pregnant Garut ewe.
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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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