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: 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: Sintesis Zeolit dan Nanokomposit Zeolit/TiO2 dari Abu Layang dan Waterglass serta Uji Adsorpsi dan Fotodegradasinya
Abstrak: Coal fly ash contains 20.74% Si and 4.09% Al, rendering its possibility to be synthesized to zeolite. Zeolite was synthesized by smelting at 550 °C, and continued with hydrothermal method at 90 °C for 6 hours. The weighed fly ash was melted with solid NaOH and various amounts of waterglass at 550 °C for 1 hour, which were coded ZK1 for 1.0 g of waterglass added, ZK2 (1.5 g), ZK3 (2.5 g), ZK4 (5.0 g), and ZK5 (7.5 g). The results indicated that the zeolite has the character as type P1. ZK1 zeolite had the highest crystallinity (65%), therefore it was used further to synthesize zeolit/TiO2 nanocomposite. The nanocomposite was formed to improve the zeolite characters, especially adsorption-photodegradation capacity. The synthesized zeolite and the nanocomposite were tested for their adsorption capacities. The results showed that the ZK1 has the highest adsorption capacity, i.e. 147 mg/g. Optimization was performed on ZK1 and zeolit/TiO2 nanocomposite to compare their adsorption capacity and to determine their optimum conditions for adsorption. The optimum concentration of adsorbate that can be adsorbed by ZK1 was obtained at 400 ppm using 0.02 g adsorbent, with the adsorption time of 3 hours. Zeolite/TiO2 nanocomposite has optimum concentration of 250 ppm with the weight of adsorbent of 0.01 g, and the adsorption time of 1 hour. The nanocomposite zeolite was able degrade methylene blue under ultraviolet radiation for 6 hours at λ=365 nm.
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