Judul: Performa Ayam Broiler dengan Penggunaan Tepung Maggot (Hermetia illucens) dalam Pakan.
Abstrak: Populasi ayam broiler terus mengalami peningkatan setiap tahunnya. Kendala pada peternakan ayam pedaging di Indonesia saat ini adalah bahan baku pakan yang masih impor. Maggot memiliki kandungan protein sebesar 43.42%. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan tepung maggot pada pakan terhadap performa ayam broiler. Penelitian ini menggunakan rancangan acak lengkap (RAL), dengan taraf perlakuan tepung maggot yang digunakan adalah R0 = 0%, R1 = 2.5%, R2 = 5%, dan R3 = 7.5%, dengan 5 ulangan dan masingmasing ulangan terdiri dari 10 ekor ayam. Peubah yang diamati adalah konsumsi pakan, bobot badan akhir, pertambahan bobot badan, konversi pakan, mortalitas, dan income over feed and chick cost (IOFCC). Hasil penelitian menunjukkan bahwa penggunaan tepung maggot berpengaruh sangat nyata (P<0.01) terhadap bobot badan, konsumsi pakan, pertambahan bobot badan, dan konversi pakan. Kesimpulan dari penelitian ini yaitu penggunaan tepung maggot dalam pakan dengan taraf 2.5%, 5%, dan 7.5% dapat menurunkan bobot badan, konsumsi pakan, pertambahan bobot badan, IOFCC, dan meningkatkan nilai konversi pakan serta mortalitas ayam broiler.
Keyword: broiler, performa, tepung maggot

Judul: Percentage Carcass, Giblet, and Abdominal Fat of Broiler Chicken Given Maggot (Hermetia illucens) Meal on Feed
Abstrak: Hermetia illucens yang dikenal dengan nama Black Soldier Fly (BSF) atau maggot adalah insekta yang dapat menjadi sumber protein alternatif dalam pakan unggas. Penelitian ini dilakukan untuk mengetahui pengaruh pemberian tepung maggot (Hermetia illucens) pada pakan terhadap persentase dan bobot karkas, lemak abdominal, dan giblet yang dilaksanakan di Kandang B Fakultas Peternakan, Institut Pertanian Bogor, selama lima minggu. Metode yang digunakan adalah metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan empat perlakuan lima kali ulangan menggunakan 200 DOC. Setiap ulangan terdiri dari 10 ekor ayam broiler. Analisis data dilakukan dengan ANOVA kemudian jika ada perbedaan nyata pengaruh perlakuan maka dilanjut uji Duncan. Hasil penelitian menunjukan bahwa pemberian tepung maggot tidak berbeda nyata terhadap berat rempela tetapi berbeda sangat nyata (P<0,05) terhadap berat hidup, berat karkas, berat lemak abdominal, berat hati berat jantung, berat dada, berat punggung, berat sayap, berat paha atas, dan berat paha bawah. Berdasarkan hasil penelitian dapat disimpulkan bahwa pemberian tepung maggot pada pakan tidak dapat melebihi hasil dari perlakuan kontrol namun pemberian tepung maggot dalam pakan pada taraf 2,5% mampu memberikan hasil lebih baik dibandingkan dengan perlakuan pemberian tepung maggot pada taraf 5,0% dan 7.5%., Hermetia Illucens known by the name Black Soldier Fly (BSF) or Maggot is an insecta that can be used an alternative protein source in poultry feed. This study was aimed to determine the effect of Maggot (Hermetia illucens) flour in feed against the percentage of carcasses, abdominal fats, and giblets. This study carried out in the B cage Faculty of Animal Science, IPB University, for 5 weeks. The method used is an experimental method using Completely Randomized Design (CRD) with 4 treatments 5 replication was used in this study. This study used 200 DOC which every replication consist 10 broiler chickens. Data was analyzed using ANOVA and then if there is a real difference in treatment effect then futher tests were conducted using Duncan. The results showed that the provision of maggot meal is insignificant difference (p > 0.05) against the weight of a gizzard but significantly difference (P < 0.05) against the weight of life, weight of carcasses, severe abdominal fat, severe heart weight, chest weight, weight of the wings, wing weight, upper thigh weight, and lower thigh weight. Based on the results of the study can be concluded that the administration maggot meal in the feed can not exceed the results of the control treatment but the provision of a maggot meal in the feed at the level of 2.5% is able to provide optimum results compared to the treatment of the provision of the starch Maggot 5% and 7.5%.
Keyword: Broiler, Giblet, Abdominal fat, Percentage of carcass, Maggot meal

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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