Judul: Organ Reproduksi dan Kualitas Sperma Mencit (Mus musculus) yang Mendapat Pakan Tambahan Kemangi (Ocimum basilicum) Segar
Abstrak: Kemangi (Ocimum basilicum) merupakan salah satu jenis tanaman obat yang mempunyai banyak kegunaan diantaranya merangsang faktor kekebalan tubuh, mencegah kemandulan, menurunkan kolesterol, mencegah ejakulasi prematur dan dapat mengatasi masalah reproduksi. Komponen kimia yang terkandung di dalamnya yang menjadikan kemangi sebagai tanaman obat yang populer. Penelitian ini bertujuan mendapatkan informasi pengaruh penambahan kemangi terhadap sifat-sifat reproduksi mencit (Mus musculus) jantan, yang meliputi karakteristik organ reproduksi dan kualitas spermanya. Penelitian ini dilaksanakan di Laboratorium Lapang dan Laboratorium Analisis Bagian Pemuliaan dan Genetika Fakultas Peternakan IPB Darmaga, Bogor. Penelitian ini dilaksanakan pada bulan Mei sampai dengan Juli 2005. Perlakuan yang diberikan terhadap mencit adalah pemberian kemangi segar sebagai pakan tambahan pada taraf perlakuan 2,5 dan 5,0%. Sebagai pembanding, digunakan kontrol yaitu kelompok mencit yang tidak diberi kemangi. Peubah yang diamati pada penelitian ini adalah kualitas sperma mencit meliputi konsentrasi, daya hidup (viabilitas), motilitas, abnormalitas dan gerakan massa. Pengukuran organorgan reproduksi meliputi testis, penis, epididimis dan vas deferens.Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) pola searah dan akan diuji lanjut Tukey apabila didapat beda nyata. Hasil penelitian menunjukkan bahwa viabilitas (daya hidup) spermatozoa pada pemberian kemangi 2,5% lebih tinggi (P<0,05) dibanding kontrol dan pemberian kemangi 5,0%, sedangkan pada pengukuran organ reproduksi menunjukkan bahwa pemberian kemangi 2,5 dan 5,0% menurunkan bobot testis (P<0,01) dibanding kontrol.
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Judul: Ukuran organ reproduksi dan kualitas sperma mencit (Mus musculus) yang mendapat bahan pakan kemangi (Ocimum basilicum L.) kering
Abstrak: Kemangi (basil: Ocimrrm basilicrrm L.) is \itell known as a traditional medicine plant wich is used to increase reproduction ability. It has been discovered that basil has a group of beneficial chemical compound to induce the bcdy respon, especially to the reproductive orsan. This research was conducted to study the pharmacological effect of basil to mice (Mrcs mrrsarlrrs) sperm quality and its reproductive organ. This research were conducted at Animal Breeding and Genetic Laboratory, Faculty of Animal Science, Bogor Agricultural University, from May up to August 2005. Experiments were done for seven week feeding trials, a total of 30 weaning mice were allotted to three treatment levels. The treatments were done by giving dried basil at level 0; 2.5; and 5.0% from diet.Data were collected 50% from each treatment level (5 mice each). Observation variables were 1) measurements of reproductive organ such as width and length of scrotal; width, length, and weight of testis and penis; length of epididymis, and vasdeferens; and 2) sperm quality such as sperm concentration, viability, motility, abnormality, and mass movement. Data were analyzed by completely randomized designed one way pattern with 10 repetitions, and continued with Tukey Test. It was discovered that the treatments did not give significant effect both to sperm quality and reproductive organ measurement except to the scrotal and epididymis. It was found that scrotal length significantly increased (P<0.01) in 2.5% level as compared with 0% level, but there was no significant differences in 5.0% level as compared both with 0 and 2.5% level. Scrotal width increased (PCO.05) in 2.5% level as compared both with 0 and 5.0% level, but there was no significant increased in 5.0% level as compared with 0% level. Also found that epididymis length increased (P<O.OS) in 2.5% level as compared in 0% level, but there was no significant differences in 5.0% level as compared both with 0 and 2.5% level. Keywords: mice, Ocimrrm basilicum, sperm quality and male reproductive organ
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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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