Judul: Efektivitas Penyuntikan Pregnant Mare's Serum Gonadotropin Sebelum Perkawinan Pada Bobot Organ Anak Tilllis Putih Saat Lahir
Abstrak: An experiment was conducted at the Laboratory of Physiology, of Physiology and Pharmacology Department of The Faculty of Veterinary Medicine, Bogor Agricultural University from December 1999 until January 2001 to study the effect of superovulation with PMSG prior to mating on the organs weight of pups. Twenty mature rats Sprague Dawley strained were used in this experiment. 1he experimental rats were assigned into a randomized design with 4x2 factorial arrangement. The first factor was PMSG (0; 37.5; 75 and 150 IU/kg BW). The second factor lVas pups sex (male and female). Diestrus rats were injected with PMSG via intraperitoneal. Fourty eight hours later hCG was injected to increase ovulation, then the experimental rats were mated and maintained until parturition. The organ (the heart, lungs, liver, spleen, kidney, brain, ovary and testicle) of two hundred and twenty six pups bom were measured. The result showed that PMSG did not influence the body weight and organs weight except for the ovarium weight of female pups.
Keyword: 

Judul: Efektivitas Penyuntikan Pregnant Mare's Serum Gonadotropin Sebelum Perkawinan Terhadap Pertumbuhan Prasapih Dan Bobot Sapih Anak Tikus Putih
Abstrak: Penelitian tentang pengaruh penyuntikan pregnant mare's serum gonadotropin (PMSG) sebelum perkawinan terhadap pertumbuhan bobot badan harian anak prasapih dan bobot badan sapih anak tikus usia lepas sapih telah dilakukan di Laboratorium Fisiologi, Bagian Fisiologi dan Farmakologi, Fakultas Kedokteran Hewan, Institut Pertanian Bogor dari bulan Desember 1999 hingga lanuari 200 l. Tikus putih betina dari galur Sprague Dawley yang digunakan sebanyak 20 ekor dan berumur 10 minggu atau yang telah dewasa kelarnin. Rancangan percobaan mengikuti pola rancangan acak lengkap dengan empat perlakuan penyuntikan PMSG (0; 37.5; 75 dan 150 IU/kg BB) dengan lima ulangan pada masing-masing perlakuan. Penyuntikan dilakukan secara intra peritoneal saat tikus mengalarni fase diestrus. Penyuntikan human chorionic gonadotropin untuk membantu terjadinya ovulasi dilakukan setelah empat puluh delapan jam kemudian. Selanjutnya induk tikus dikawinkan dan dipelihara sampai partus. Anak tikus yang dilahirkan sebanyak 218 ekor dipelihara hingga lepas sapih dan ditimbang bobot badannya setiap dua hari dan saat usia lepas sapih. Hasil penelitian menunjukkan bahwa PMSG dosis 37.5; 75 dan 150 IU/kg BB tidak mempengaruhi pertumbuhan bobot badan harian anak prasapih dan bobot badan sapih anak tikus usia lepas sapih.
Keyword: 

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.
Keyword: