Judul: Analisis pengaruh sedimentasi terhadap komunitas karang batu (scleractinia) di perairan Tanjung Pemancingan Kotabaru Kalimantan Selatan
Abstrak: Sedimentation is one of some limiting factors for coral distribution. Tanjung Pemancingan waters Kotabaru influences by sedimentation coming from river, runoff and activity of coal port mining. The aims of this research are to (1) study hard coral coverage, montatily, abuncance and genera colony, (2) study sedimentation rate and characteristic of environment econditions, (3) analyze correlation of the hard coral community follow with of sedimentation rate, (4) analyze distribution between hard coral community follow with of sedimentation rate and enviromental conditions different.
Keyword: 

Judul: Effect of sediment on scleractinian corals community in derawan islands, east kalimantan
Abstrak: There are some indications that run-off from Berau River gives negative impact on scleractinian corals community in Derawan Islands. Many activities occured in the upland beside of the Berau River such as deforestation, coal and sand mining increased the sedimentation in the Derawan Islands waters, direct or indirectly. Sediment through shading and smothering cause corals in stress condition and eventually death for some species. The purpose of this research is to study about the effect of sedimentation on scleractinian corals in Derawan Islands, East Kalimantan. The quadrate transects placed at each station to estimate live coral coverage. The stations represent distance from Berau River. Rapid Ecological Assessment (REA) used to get coral species richness by The Nature Conservancy (TNC) in 2003. A sediment trap placed for 14 days in each station to have sedimentation rate. Sample of sediment were analyzed in the laboratory. Sedimentation rate (mg/cm2/day) decrease in number from station Panjang Island to Maratua Island. The coverage and species richness of coral reefs have negative correlation to sedimentation rate, which mean high sedimentation tend to cause low species richness and coral coverage. The lowest number of species richness and scleractinian coral coverage found in Station 1 which nearest distance to Berau River with high sedimentation rate.
Keyword: 

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum