Judul: Tingkah Laku Investigative dan Lokomosi serta Grooming DOmba Garut Dengan Jenis Pakan dan Waktu Pemberian Pakan Yang Berbeda
Abstrak: Tingkah laku ternak dipengaruhi oleh kondisi internal dan eksternal seperti kondisi fisiologis dan lingkungan, manajemen pemeliharaan atau pakan ternak. Tujuan dari penelitian ini adalah untuk Mengevaluasi pengaruh dari pakan limbah tauge, rumput lapang, dan waktu pemberian pakan terhadap tingkah laku grooming dan lokomosiserta investigative dari domba garut. Enam belas domba jantan dibagi menjadi dua kelompok dimana tiap kelompok diberi perlakuan pakan dan waktu pemberian pakan yang berbeda.Bentuk dari rancangan penelitian ini adalah RAK factorial pola 2x2, dimana faktor pertama adalah jenis pakan dan faktor kedua adalah waktu pemberian pakan(pagi dan malam). Hasil menunjukan bahwa tidak ada interaksi antara perbedaan ransum dan waktu pemberian pakan, akan tetapi jenis ransum mempengaruhi durasi tingkah laku grooming dan frekuensi dari tingkah laku grooming, lokomosi dan investigative.Dari penelitian ini dapat disimpulkan bahwa penambahan limbah tauge membuat domba lebih nyaman.
Keyword: Bean sprout waste, Garut sheep, Grooming, Investigative, Locomotion, Animal behavior, Physiological condition, Husbandry management, Feeding time, Factorial randomized

Judul: Respon Fisiologis dan Tingkah Laku Domba Garut dengan Pakan Limbah Tauge atau Kangkung Kering sebagai Pengganti Rumput
Abstrak: Garut sheep is commonly reared in West Java and usually fed with grass as the main feed and energy source. However, this grass has low quality and seasonally available, therefore should be an alternative feed such as mung bean sprout waste and dried kangkung. This research aimed to study sheep physiology and behavior as a response to diet and environment. This research used nine garut sheep (I0) with three treatments and replicates. The treatments were P0 (50% grass+50% consentrate), P1 (50% mung bean sprout waste+50% concentrate) and P2 (50% dried kangkung+50% concentrate). Physiological response data were analyzed by analysis of variance (ANOVA) and tested by Tukey post test method, while behavior frequency data were analyzed by Kruskal-Wallis test. Result showed that diet treatment did not affect (P>0.05) the heart and respiration rate, but significantly affected (P<0.05) on rectal temperature. All behaviors parameters were not significantly different (P>0.05) except for resting, grooming, licking strange object, and locomotion were higher in P1 than P0 and P2.
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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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