Judul: Jumlah Sel Somatik Susu Kambing Peranakan Etawah Setelah Vaksinasi Dengan Vaksin Iradiasi Streptococcus Agalactiae Untuk Pencegahan Mastitis Subklinis
Abstrak: Kambing Peranakan Etawah (Pe) Merupakan Kambing Yang Dipelihara Untuk Memenuhi Kebutuhan Susu Dan Daging. Sebagai Ternak Penghasil Susu, Kambing Pe Juga Rentan Terhadap Mastitis Subklinis. Mastitis Subklinis Sebagian Besar Disebabkan Oleh Streptococcus Agalactiae. Banyak Metode Yang Dikembangkan Untuk Melawan Mastitis Subklinis (Meningkatkan Higiene Sanitasi, Teat Dipping, Dan Vaksinasi). Tujuan Dari Penelitian Ini Adalah Mengetahui Pengaruh Vaksin Iradiasi Streptococcus Agalactiae Terhadap Jumlah Sel Somatik Pada Susu Kambing Pe. Kambing Yang Digunakan Adalah Kambing Sehat Usia Kebuntingan Empat Sampai Lima Bulan Yang Divaksin Tiga Kali Dengan Interval 2 Minggu. Volume Vaksin Yang Digunakan Adalah 2 Ml Dan Mengandung 108 Cfu/Ml Streptococcus Agalactiae Yang Diiradiasi Dengan Sinar Gamma Dengan Laju Dosis 112.504 Krad/Jam Dan Dosis 17 Gy. Sampel Susu Yang Digunakan Diambil Dua Kali Setelah Vaksinasi Dengan Pengambilan Sampel Pada Minggu Kedua Setelah Kelahiran. Sampel Susu Yang Diperoleh Dilakukan Penghitungan Jumlah Sel Somatik (Jss). Hasil Penelitian Menunjukkan Bahwa Jss Dari Sampel 1 Lebih Rendah Dari Sampel 2 Dan Jss< 1500000 Sel/Ml. Meskipun Terjadi Peningkatan Jss Namun Masih Berada Dalam Status Normal. Hal Ini Menunjukkan Bahwa Vaksin Iradiasi Streptococcus Agalactiae Berpotensi Untuk Mencegah Kejadian Mastitis Subklinis Pada Kambing Yang Disebabkan Oleh Bakteri Streptococcus Agalactiae.
Keyword: Vaksin Iradiasi, Kambing Peranakan Etawah (Pe), Jumlah Sel Somatik (Jss), Streptococcus AgalactiaeVaksin Iradiasi

Judul: Profil leukosit kambing peranakan etawah setelah vaksinasi iradiasi streptococcus agalactiae untuk pencegahan mastitis subklinis
Abstrak: Etawah cross breed goat was domesticated to fulfill human need on meat and milk. As a dairy milk producer etawah cross breed goat is susceptible to subclinical mastitis. Subclinical mastitis is often caused by Streptococcus agalactiae. Several methods had been developed to prevent subclinical mastitis, i.e., promoting sanitation and higiene, teat dipping, and vaccination. The objective of this reseach was to identify the efectiveness of irradiated vaccine S. agalactiae to prevent subclinical mastitis caused by S. agalactiae through observation of leucocytes profile. This research used pregnant healthy goats with four until five months gestation that were vaccinated three times with interval of 2 weeks. The vaccine volume used was 2 mL and contain 108 cfu/mL S. agalactiae administerated by subcutaneous route. The blood samples of 9 pregnant Etawah cross breed goats (5 vaccinated goats and 4 control goats) were taken out every one week post vaccinated. Samples were prepared to be blood smear preparation and stained with Giemsa and examined on leucocytes profile (relative value and total value). This study showed that limphocytes from treated etawah cross breed goats were higher than control. Relative and total value of lymphocytes in prevactination were significantly different (P<0.05) (73.67±2.05% and 5230±87 cell/μL) also postvactination 3rd (66.00±4.08% and 5676±1520 cell/μL). The study concluded that the secondary immune response from vaccination program already formed to prevent subclinical mastitis in etawah cross breed goat caused by S. agalactiae.
Keyword: Bogor Agricultural University (IPB), Streptococcus agalactiae., leucocytes profile, irradiation vaccine, etawah cross breed goat

Judul: Utilization of terra/MODIS L1B data for analysis of horizontal wind profile in the troposphere
Abstrak: This study was concerned with horizontal wind derived from data collected with the Moderate-resolution Imaging Spectroradiometer (MODIS) on board the NASA’s Earth Observation System (EOS)-Terra satellite. The aim of this study is to develop a method for the estimation of horizontal wind movement in the troposphere based on Navier-Stokes equation. The method was applied to a calibrated and geolocated Terra/MODIS L1B 1 km data set. The data inputs to estimate surface temperature are retrieved from TIR (Thermal Infrared) bands 31 (10.780 μm to 11.280 μm) and 32 (11.770 μm to 12.270 μm). The obtained surface temperatures were later used to approximate geopotential height on a constant-pressure surface by using the modified Poisson equation. The main assumptions used are the hydrostatic equilibrium, ideal gas law, constant lapse rate and constant acceleration of gravity. Based on the distribution of geopotential height, the pressure gradient force is measured by the gradient of geopotential on an isobaric coordinate to present the horizontal wind profile. For certain topographic areas especially in the mountain ranges, there was a disadvantage of using pressure as a vertical coordinate which lead to inaccuracy. In spite of that, Terra/MODIS L1B data with 1 km spatial resolution can be used to estimate the horizontal wind movement in the troposphere.
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