Judul: Profil Darah, Respon Fisiologis, dan Performa Domba Lokal Pascatransportasi Dengan Suplementasi Asam Amino dan Gula
Abstrak: Transportasi dapat menyebabkan stres yang berdampak terhadap penyusutan bobot badan dan perubahan kondisi fisilogis domba. Penelitian ini bertujuan untuk mengkaji perubahan profil darah, respon fisiologis dan performa domba lokal pascatransportasi darat yang diberi penambahan asam amino dan gula. Percobaan ini dilaksanakan di Blok B, Laboratorium Lapangan Fakultas Peternakan, IPB. Penelitian berlangsung pada bulan September 2021 menggunakan domba lokal jantan dengan kisaran bobot 20,91 ± 2,73 kg. Perlakuan berupa pemberian asam amino 12 g ekor-1 dan gula sebanyak 25 g ekor-1 perhari dengan cara dicampurkan dalam ransum. Model perlakuan yaitu P0 = Kontrol (tanpa penambahan asam amino dan gula), P1 = dengan penambahan asam amino dan gula, masing-masing mendapat empat ulangan. Perlakuan ini diterapkan selama pemeliharaan 15 hari sebelum pengangkutan dan masa recovery hingga mencapai bobot semula. Transportasi dilakukan selama ± 8 jam pada siang hari, dengan luasan dek selama transportasi sebesar 0,1 m2 ekor-1. Data dianalisis menggunakan uji T antara kontrol dan perlakuan. Hasil penelitian menunjukkan bahwa pemberian asam amino dan gula tidak mempengaruhi variable yang diamati (P>0,05).
Keyword: amino acids, sheep, sugar, transportation

Judul: Behaviour of Lokal Sheep of Post Transportation with Aditional Feeding of Amino Acid and Sugar
Abstrak: Proses Transportasi ternak merupakan salah satu hal penting dalam sistem usaha perternakan domba. Tujuan dari penelitian ini adalah untuk mengkaji pengaruh pemberian gula dan asam amino terhadap tingkah laku domba lokal pasca transportasi. Tingkah laku yang diamati adalah perilaku makan, minum, resting, berdiri dan lokomosi dengan menggunakan teknik scan sampling dengan interval 1 menit selama 54 jam dan one zero time record. Penelitian ini menggunakan 8 ekor domba lokal yang dipelihara selama 22 hari. Data dianalisis menggunakan uji T untuk membandingkan P0 = Kontrol (Tanpa transportasi, gula dan asam amino) dan P1: dengan transportasi, gula dan asam amino. Hasil penelitian pada frekuensi dan durasi tingkah minum, berdiri, lokomosi dan frekuensi resting serta durasi makan ialah tidak berbeda nyata (P>0,05) antar perlakuan, namun pada frekuensi resting dan durasi resting menunjukan hasil yang berbeda sangat nyata (P<0,01). Pengamatan frekuensi dan durasi pada tingkah laku domba lokal yang paling sering dilakukan adalah resting dan paling sedikit ialah tingkah laku minum. Kata kunci : domba lokal, tingkah laku , transportasi, gula, asam amino, The process of livestock transportation is one of the important things in the sheep farming business system. The purpose of this study was to examine the effect of sugar and amino acids on the behavior of local sheep after transportation. The observed behavior was eating, drinking, resting, standing and locomotion behavior using scan sampling technique with 1 minute intervals for 54 hours and one zero time record. This study used 8 local sheep which were reared for 22 days. Data were analyzed using T test to compare P0 = Control (Without transport, sugars and amino acids) and P1: with transport, sugars and amino acids. The results of the study on the frequency and duration of drinking, standing, locomotion and resting frequency and duration of eating were not significantly different (P>0.05) between treatments, but the resting frequency and resting duration showed very significant differences (P<0, 01). The most frequent observation of the frequency and duration of the behavior of local sheep is resting and the least is drinking behavior.
Keyword: local sheep, behavior, transportation, sugar, amino acid

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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