Judul: Efektivitas Penyuntlkan Pregnant Mare's Serum Gonadotropindalam Superovulasi Pada Bobot Badan Dan Ukuran Tubuh Anak Tikus Putih Saat Lahir
Abstrak: The goal of this experiment was to study the effect of superovulation on body weight and size of pups at birth. Superovulation technique was done with the injection of PMSG before mating on female rats, to increase endogenous secretion of reproductive hormones. Twenty mature rats Sprague-Dawley strained were assigned into four treatments, each treatment with five rats. The treatment was PMSG injection, with: 0; 37,5; 75 and 150 IUlkg BW dosage respectively. PMSG injection was given intra peritoneauy at diestms cyde, then 48 hours later fouowed by HCG injection to stimulate ovulation. The experimental rats were mated and only pregnant rats were maintained until parturition. The body weight and size (head, spine, fore leg and hind leg) of 226 born pups were measured The result showed that superovulation did not significantly influence birth weight, length of head, spine and fore leg. Only 37,5 IUlkg BW dosage that increased the length of the hind leg. Superovulation did not influence the parameters within as weu as among litter size.
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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.
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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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