Judul: Performance Of Mice (Mus musculus) Given Additional Papaya Fruit In Feed
Abstrak: Mencit putih (Mus musculus) merupakan hewan mamalia yang memiliki banyak manfaat, baik sebagai pakan ular dan hewan reptil lain, juga dimanfaatkan sebagai hewan percobaan/hewan laboratorium. Pepaya california mempunyai kandungan gizi yang tinggi seperti vitamin A dan C, pepaya juga memiliki kadar air yang cukup tinggi sebesar 86,7 g dan serat sebesar 0,7 g pada setiap 100 g daging buah pepaya. Penelitian ini bertujuan untuk menganalisis performa mencit putih yang diberi penambahan buah pepaya dalam pakan dengan taraf yang berbeda. Penelitian ini menggunakan 80 ekor mencit putih. Rancangan yang digunakan adalah rancangan acak lengkap (RAL) dengan empat perlakuan yaitu pemberian pakan tambahan buah pepaya P1; 0%; P2; 5%; P3; 10%; P4; 15%, dan empat ulangan. Data yang diperoleh dianalisis menggunakan ANOVA, hasil yang berbeda diuji lanjut dengan uji Duncan. Hasil penelitian menunjukkan bahwa pada jumlah konsumsi air minum mencit putih berbeda nyata (P<0,05), sementara pertambahan bobot badan dan mortalitas tidak berbeda nyata (P>0,05). Perlakuan tanpa penambahan buah papaya, menunjukkan hasil yang lebih baik dibanding dengan perlakuan lainnya., Mice (Mus musculus) is mammal that has many benefits as feed for other reptile, and used as experimental animals. Papaya California has a high nutritional content such as vitamins A and C, contain high water content of 86.7 g and fiber of 0.7 g in every 100 g papaya flesh. This study aimed to analyze the performance of Mice given additional papaya fruit in mouse feed at different levels. This study used 80 white mouse, and applied a complete randomized design (RAL) with four treatments including the additional level of papaya fruit i.e.: T1; 0%; T2; 5%; T3; 10%; T4; 15% with four replication. Data was analyzed using ANOVA. The difference results were tested using Duncan test. The results showed that the amount of drinking water consumption was significantly different (P<0.05) between treatments, which was higher in while the body weight gain and mortality rate was not significantly different (P>0.05) between treatmens. Mouse given feed without papaya fruit treatment showed better results than other treatments.
Keyword: Mus musculus, papaya fruits, perfomance

Judul: Performance of white white mice (Mus musculus) with the use of different cage sizes
Abstrak: Mencit putih (Mus musculus) merupakan hewan mamalia kecil yang sering digunakan sebagai hewan percobaan penelitian karena memiliki variasi genetik dan kemampuan reproduksi yang tinggi, relatif murah, mudah pemeliharaan, mudah didapat, dan ukurannya yang kecil membuat mencit putih mudah ditangani. Untuk mencapai ketersediaan mencit putih dengan performa dan produktivitas yang baik perlu memperhatikan manajemen pemeliharaan diantara nya kepadatan kandang. Penelitian ini dilakukan untuk mengamati dan mengetahui pengaruh penggunaan kandang dengan ukuran yang berbeda pada performa mencit putih (Mus musculus). Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan tiga perlakuan yaitu kandang dengan ukuran kecil (30 x 24 x 10 cm); sedang (39 x 31 x 13 cm) dan; besar (46 x 36 x 16 cm) dengan masing-masing empat ulangan. Peubah yang diamati pertambahan bobot badan, jumlah konsumsi air minum, litter size dan mortalitas anak. Hasil penelitian menunjukkan bahwa penggunaan ukuran kandang memberikan pengaruh nyata (P<0,05) pada parameter yang diamati. Penggunaan kandang ukuran kecil menunjukkan hasil yang lebih baik pada litter size sebanyak 34,25 ekor dan jumlah konsumsi air minum tertinggi sebanyak 35,80 mL, kandang ukuran besar menunjukkan hasil yang lebih baik pada pertambahan bobot badan sebesar 25,56 g dan mortalitas paling rendah sebesar 0,5 ekor, White mice (Mus musculus) are small mammals that are often used as research experimental animals because they have genetic variation and high reproductive ability, are relatively inexpensive, easy to maintain, easy to obtain, and their small size makes white mice easy to handle. To achieve the availability of white mice with good performance and productivity, it is necessary to pay attention to maintenance management, including cage density. This study was conducted to observe and determine the effect of using cages of different sizes on the performance of white mice (Mus musculus). This study used a completely randomized design (CRD) with three treatments, namely a small cage (30 x 24 x 10 cm); medium (39 x 31 x 13 cm) and; large (46 x 36 x 16 cm) with four replications each. The observed variables were body weight gain, amount of drinking water consumption, litter size and child mortality. The results showed that the use of cage size had a significant effect (P<0.05) on the observed parameters. The use of small cages showed better results iii at 34.25 litter size and the highest amount of drinking water consumption was 35.80 mL, large cages showed better results in body weight gain of 25.56 g and the lowest mortality. of 0.5 tails
Keyword: body weight gain, cage size, child mortality, litter size, Mus musculus

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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