Judul: Percentage Weight of Commercial Cuts
of Carcass and Organs of Broiler Chickens with Feed Containing Garlic Treatment.
Abstrak: Pemanfaatan ayam ras pedaging menyimpan resiko bagi konsumen, karena penggunaan berbagai jenis Antibiotic Growth Promoter (AGP). Studi pada bawang putih sebagai alternatif dari promotor pertumbuhan produksi ternak dilakukan dan efek menguntungkan pada pertumbuhan dan daya cerna. Penelitian ini bertujuan mengkaji persentase bobot potongan komersial dan organ ayam broiler yang diberi pakan dengan penambahan bawang putih sebanyak 3%. Rancangan percobaan penelitian ini menggunakan RAL dengan 4 perlakuan yaitu, pakan kontrol (P0), bawang putih segar P1, bawang putih kering P2 dan bawang hitam P3 dengan 5 ulangan. Pengambilan sampel dilakukan dengan memotong bagian karkas menjadi 4 bagian yaitu, dada, paha, sayap, dan punggung lalu diambil organ dalam meliputi hati, ampela, jantung, limpa, dan bursa fabricius. Data yang diperoleh dianalisis secara statistik dengan menggunakan sidik ragam (analysis of variance/ ANOVA) menggunakan aplikasi SPSS. Pemberian olahan bawang putih sebesar 3% sebagai subtitusi AGP tidak memberikan pengaruh yang nyata (P>0,05) terhadap persentase bobot potongan komersial dan persentase bobot organ ayam broiler, perlu penelitian lanjutan menggunakan dosis penambahan olahan bawang putih yang berbeda., The use of broiler chickens poses a risk to consumers, due to the use of various types of Antibiotic Growth Promoter (AGP). Studies on garlic as an alternative of a growth promoter in livestock production were carried out and its beneficial effects on growth and digestibility were carried out. This study aims to determine the percentage of commercial slaughter weight and organs of broiler chickens fed with the addition 3% of garlic. The experimental design of this study used RAL with 4 treatments namely, control feed (P0), fresh garlic P1, dry garlic P2 and black garlic P3 with 5 replications. Sampling was carried out by cutting the carcass into 4 parts, chest, thigh, wings and back and then taking the internal organs including liver, gizzard, heart, spleen, and bursa fabricius. The data obtained was analyzed statistically using analysis of variance (ANOVA) using the SPSS application. Provision of processed 3% garlic as a substitute for AGP did not have a significant effect (P> 0,05) on the percentage of commercial slaughter weight and the percentage of broiler organ weight, further research is needed using different added doses of processed garlic
Keyword: Ayam broiler, bawang putih, potongan, organ

Judul: Percentage Weight of Commercial Cutsof Carcass and Organs of Broiler Chickens with Feed Containing Garlic Treatment.
Abstrak: Pemanfaatan ayam ras pedaging menyimpan resiko bagi konsumen, karena penggunaan berbagai jenis Antibiotic Growth Promoter (AGP). Studi pada bawang putih sebagai alternatif dari promotor pertumbuhan produksi ternak dilakukan dan efek menguntungkan pada pertumbuhan dan daya cerna. Penelitian ini bertujuan mengkaji persentase bobot potongan komersial dan organ ayam broiler yang diberi pakan dengan penambahan bawang putih sebanyak 3%. Rancangan percobaan penelitian ini menggunakan RAL dengan 4 perlakuan yaitu, pakan kontrol (P0), bawang putih segar P1, bawang putih kering P2 dan bawang hitam P3 dengan 5 ulangan. Pengambilan sampel dilakukan dengan memotong bagian karkas menjadi 4 bagian yaitu, dada, paha, sayap, dan punggung lalu diambil organ dalam meliputi hati, ampela, jantung, limpa, dan bursa fabricius. Data yang diperoleh dianalisis secara statistik dengan menggunakan sidik ragam (analysis of variance/ ANOVA) menggunakan aplikasi SPSS. Pemberian olahan bawang putih sebesar 3% sebagai subtitusi AGP tidak memberikan pengaruh yang nyata (P>0,05) terhadap persentase bobot potongan komersial dan persentase bobot organ ayam broiler, perlu penelitian lanjutan menggunakan dosis penambahan olahan bawang putih yang berbeda., The use of broiler chickens poses a risk to consumers, due to the use of various types of Antibiotic Growth Promoter (AGP). Studies on garlic as an alternative of a growth promoter in livestock production were carried out and its beneficial effects on growth and digestibility were carried out. This study aims to determine the percentage of commercial slaughter weight and organs of broiler chickens fed with the addition 3% of garlic. The experimental design of this study used RAL with 4 treatments namely, control feed (P0), fresh garlic P1, dry garlic P2 and black garlic P3 with 5 replications. Sampling was carried out by cutting the carcass into 4 parts, chest, thigh, wings and back and then taking the internal organs including liver, gizzard, heart, spleen, and bursa fabricius. The data obtained was analyzed statistically using analysis of variance (ANOVA) using the SPSS application. Provision of processed 3% garlic as a substitute for AGP did not have a significant effect (P> 0,05) on the percentage of commercial slaughter weight and the percentage of broiler organ weight, further research is needed using different added doses of processed garlic
Keyword: Ayam broiler, bawang putih, potongan, organ

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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