Judul: Implementation of Digital Image as a Method of  Morphometric Relationship of Dairy Cow FH Body with Milk Production in  KUNAK Bogor
Abstrak: Kawasan Usaha Peternakan (KUNAK) merupakan kawasan peternakan sapi perah yang terletak di Kecamatan Cibungbulang dan Kecamatan Pamijahan Kabupaten Bogor. Tujuan penelitian adalah menganalisis hubungan morfometrik tubuh panjang badan, tinggi badan, dalam dada dan lingkar dada sapi perah Friesian Holstein terhadap produksi susu di Kawasan Usaha Peternakan sapi perah Kabupaten Bogor menggunakan metode citra digital. Pengukuran dilakukan menggunakan Software Image J kemudian ditabulasi ke dalam Microsoft Excel. Data diolah menggunakan Minitab 19 dengan mencari persamaan regresi linear terbaik kemudian dibandingkan dengan koefisien korelasi antara panjang badan, tinggi badan, dalam dada dan lingkar dada dengan produksi susu. Hasil penelitian menunjukan bahwa persamaan regresi linear terbaik diperoleh dari panjang badan, dalam dada dan lingkar dada yang dikategorikan sangat kuat. Nilai korelasi antara panjang badan, dalam dada dan lingkar dada dengan produksi susu adalah 0,857, 0,823 dan 0,850. Parameter ukuran tubuh panjang badan, dalam dada dan lingkar dada merupakan parameter ukuran tubuh yang dapat mempengaruhi produksi susu.
Keyword: citra digital, morfometrik, produksi susu, digital image, milk production, morphometric

Judul: Morphometric Relationship of FH Dairy Cow Body Digital Image with Milk Production in Cijeruk District Bogor
Abstrak: Produktivitas susu sapi perah disebabkan oleh beberapa faktor. Ukuran linear tubuh sapi perah menjadi salah satu faktor yang berpengaruh terhadap produktivitas susu. Tujuan penelitian adalah menganalisis hubungan morfometrik tubuh sapi perah Friesian Holstein secara citra digital dengan produksi susu di peternakan rakyat sapi perah Desa Tajurhalang, Kecamatan Cijeruk, Kabupaten Bogor, Jawa Barat. Bagian tubuh yang diukur adalah panjang badan, tinggi pinggul, dalam dada, dan lingkar dada. Pengukuran morfometrik dilakukan dengan mengambil foto tubuh sapi FH menggunakan kamera DSLR kemudian diolah menggunakan perangkat lunak ImageJ. Data diolah menggunakan perangkat lunak Minitab 18 dengan mencari persamaan regresi dan koefisien korelasi terhadap produksi susu. Hasil penelitian menunjukkan koefisien determinasi terkoreksi antara panjang badan, tinggi pinggul, dalam dada, dan lingkar dada dengan produksi susu rendah. Dalam dada dan lingkar dada memiliki hubungan yang rendah namun dapat berpengaruh terhadap produksi susu. Penelitian ini sangat efisien untuk mengukur tubuh sapi dalam jumlah yang banyak., Dairy cow milk productivity is caused by several factors. The linear size of the body of dairy cow is one of the factors that affect milk productivity. This research aims to analyze the morphometric relationship between the body of Friesian Holstein cow using digital images and milk production in the dairy farm Tajurhalang Village, Cijeruk District, Bogor Regency, West Java. The body part measured were body length, hip height, chest depth, and chest circumference. The morphometric measurements were carried out by taking a photo of the FH cow body using a DSLR camera and then processing with ImageJ software. The data was processed using Minitab 18 software by looking for the regression equation and the correlation coefficient on milk production. The results showed that the adjusted Rsquared between body length, hip height, chest depth, and chest circumference with milk production is low. Chest depth and chest circumference has a low relationship but can affect milk production. This research very efficient to measure the body of cows in large number.
Keyword: digital image, Friesian Holstein cow, morphometrics

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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