Judul: Evaluasi Pakan Lokal Itik Alabio (Anas platyrhyncos Borneo) terhadap Kualitas Telur Di Kecamatan Alabio Kalimantan Selatan.
Abstrak: This study obtained to evaluate the nutrition content of local feeds which are commonly used by farmer and observed differences of the egg production, physical quality of eggs, chemical composition of egg yolk (protein, fat and fatty acids omega-3 and omega-6) in of five villages in District Alabio South Kalimantan. This experiment used survey method and observation with descriptive analysis. Twelve farmers was used this study and 12 sample of feed and 10 eggs for farmers. The variables observed were profiles of farmers, nutrient content of feed, egg production, the physical quality of eggs and the chemical content of egg yolk. The results showed that the local feed of Alabio ducks contained 10%-18% crude protein, 0.63%-11.55% crude fat, 2.67%- 9.55% calcium, and 0.23%-0.69% phosfor. Most of the ration were given to have a low protein content so that it impact on production and low quality of eggs.The results showed that the physical quality of eggs indicate that egg weight 62.6-66.05 g egg-1, egg index 76.63-77.94 and yolk color score 8.85-13.95. Protein of yolk color 10.72%- 16.67%, fat of yolk color 24.94%-35.95%. omega-3 and omega-6 ratio at 1: 6.56.
Keyword: Anas platyrhynchos Borneo, fatty acid, alabio duck, egg quality

Judul: Egg Production and Qualities of Reciprocal Crosses betweenAlabio and Pekin Ducks
Abstrak: Itik Alabio merupakan sumber daya ternak lokal di Indonesiayang berpotensi untuk dapat dimanfaatkan dan dikembangkan sebagai penghasil daging dan telur.Namun, itik Alabio lebih umum dikenal sebagai itik penghasil telur dibandingkan sebagai itik penghasil daging.Pada umumnya itik Alabio dibudidayakan secara tradisional oleh para peternak yang memungkinkan terjadinya perkawinan tidak terstruktur yang dapat mengakibatkan perubahan sifat produksi dari itik Alabio tersebut. Persilangan resiprokal antara itik Alabio dan itik Pekin yang telah dilakukan oleh BPT Ciawi diamati untuk dapat mengetahui kestabilan sifat produksi dari hasil persilangan resiprokal tersebut.Persilangan resiprokal antara itik Alabio dan itik Pekin yang menghasilkan sebanyak 90 ekor itik betina PA (pejantan Pekin-betina Alabio) dan 90 ekor itik betina AP (pejantan Alabio-betina Pekin) selanjutnya dipelihara selama 11 bulan dalam kandang baterai dengan perlakuan pakan yang sama. Pengamatan dilakukan terhadap sifat produksi dan kualitas telur yang dihasilkan masing-masing genotipa. Hasil pengamatan menunjukkan bahwa sifat produksi diantaranya umur pertama bertelur (UPB), bobot telur pertama (BTP), bobot badan pertama bertelur (BBPT) dan produksi telur 3 bulan dari itik PA dan AP tidak berbeda nyata (P>0,05). Hasil pengamatan kualitas telur secara umum juga menunjukkan hasil yang tidak berbeda nyata (P>0,05) hanya pada beberapa peubah yang memiliki nilai berbeda nyata (P<0,05). Berdasarkan hasil pengamatan pada sifat produksi dan kualitas telur yang dihasilkan dapat diketahui bahwa kestabilan dari sifat produksi itik Alabio cukup tinggi bahkan persilangan tersebut dapat menghasilkan bangsa itik yang memiliki bobot badan dan produksi telur yang tinggi.
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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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