Judul: Pengaruh Pemberian Antibiotika Tilmikosin, Tilosin, Enrofloksasin, Doksisiklin Secara Oral Terhadap Aktifitas Fagositosis Sel Fagosit Peritoneum Pada Ayam Broiler
Abstrak: Penelitian ini dilakukan untuk melihat pengaruh pemberian antibiotika tilmikosin, tilosin, enrofloksasin dan doksisiklin secara oral terhadap aktifitas fagositosis sel fagosit peritoneum. Ayam diberi antibiotika secara oral selama 5 hari berturut-turut dengan antibiotika yang berbeda. Setelah 24 jam terakhir pemberian preparat antibiotika, ayam ditantang dengan bakteri Staphylococcus aureus non protein A pada rongga peritoneum dan satu jam kemudian dilakukan pemanenan sel fagosit peritoneum. Aktifitas fagositosis sel fagosit dihitung dengan persentase jumlah fagosit yang aktif memfagosit S. aureus dalam 100 sel fagosit yang ditemukan. Hasil yang ditunjukkan bahwa jumlah sel fagosit aktif mengalami peningkatan walaupun secara statistik tidak berbeda nyata (P>0.05). Rata-rata persentase sel fagosit yang aktif bila dibandingkan antara perlakuan dengan kontrol dan antar perlakuan pada jantan dan betina, umumnya menunjukan hasil tidak berbeda nyata (P>0.05), kecuali pada pemberian antibiotika tilosin berbeda nyata (P<0.05) dibandingkan dengan kontrol.
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Judul: Pengaruh Imunomodulator Pemberian Antibiotika Enrofloksasin, Oksitetrasiklin, Dan Tilmikosin Terhadap Gambaran Ulas Darah Putih, Aktifitas Dan Kapasitas Fagositosis Sel Fagosit Peritoneum Ayam Broiler (Gauus Domesticus Strain Hybro).
Abstrak: The aim of this research is to evaluate the effect of enrojloxacin, oxytetracydin and tilmicosin on host immune system, especiauy on white blood ceus differentiation, phagocytic activity and capability from peritoneum jluids. Thirty two broiler chickens (three weeks old) were distributed into four different treatments, three groups of them were given antibiotics (enrojloxacin, oxytetracydin and tilmicosin) and one control (non medicated control). Treatments were set for 5 days using subcutaneous application with 24 hours interval. Preparation of blood slide were done 24 hours after the last treatment and before chauenged using a nonprotein A Staphylococcus aureus intra peritoneumly. Intra peritoneum jluid were harvested one hour after the chauenged by opening the abdomen and couected the jluid fouowed by fir:ation and staining using Giemsa. In this trial, au antibiotics treatments showed increased the number of heterophil and decreased of lymphocyte. In the other hand, the result also showed no Significant effect of monocyte, eosinophil and basophil number. Tilmicosin treated group could enhance the activity of phagocytic ceus. Statisticauy, au antibiotics treatments showed no significant effect of phagocytic capability between control and au antibiotics treatments.
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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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