Judul: Pengukuran Morfometrik Tubuh Sapi Friesian Holstein dan Sapi Simmental dengan Metode Citra Digital
Abstrak: Pengukuran morfometrik secara citra digital dilakukan sebagai metode untuk mengukur dimensi tubuh, bobot tubuh, dan pertumbuhan ternak. Tujuan penelitian ini yaitu membandingkan morfometrik tubuh antara sapi simmental dan sapi perah FH menggunakan metode citra digital. Ternak yang digunakan yaitu sapi perah FH dan sapi Simmental masing-masing sebanyak 15 ekor berjenis kelamin betina dengan kisaran umur 2-3 tahun (I₂). Indikator yang diamati adalah vertebrae carvicalis, vertebrae thoracicae, vertebrae lumbales, vertebrae sacrales, scapula, humerus, radius-ulna, metacarpale, femur, panjang os tibia- fibulla, panjang os metatarsale, jarak coxae-ischium, panjang badan, lingkar dada, tinggi badan, dalam dada, dan tinggi pinggul. Data yang diperoleh kemudian dianalisis dengan uji-t. Hasil penelitian menunjukkan bahwa kerangka sapi FH dan sapi Simmental menunjukkan perbedaan yang signifikan. Perbedaan tersebut terdapat pada panjang vertebrae cervicales, vertebrae thoracicae, vertebrae lumbales, vertebrae sacrales, radius-ulna, femur, tibia-fibulla, metatarsalia I-V, panjang badan, tinggi badan, dan tinggi hip. Karakteristik morfometrik Sapi FH menunjukkan bahwa sapi FH memiliki badan yang lebih tinggi dan jenjang tetapi dalam dada yang lebih rendah dibandingkan dengan sapi simmental, Digital image morphometric measurements were carried out as a method for measuring body dimensions. The objective of this study was to compare morphometric measurements between simmental cows and FH cows using digital image methods. The experiment used 15 FH and Simmental cows each, aged 2-3 years old (I₂). The parameters observed included the length of vertebrae carvicalis, thoracic vertebrae, lumbar vertebrae, sacral vertebrae, scapula, humerus, radius ulna, metacarpal, os femoris, os tibia-fibula and metatarsal bones, the distance between os coxae and os ischium, body length, chest depth, withers height, and hip height. The data obtained were then analyzed by t-test. The results showed that the skeletons of FH and Simmental cattle showed significant differences. These differences are found in the length of the cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacral vertebrae, radius-ulna, femur, tibia-fibula, metatarsalia I V, body length, body height, and hip height. The results showed that based on morphometric measurements, FH cows had obviously higher wither height, but lower chest depth compared to simmental cows
Keyword: Digital image, FH dairy cattle, Morphometric, Simmental cattle

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: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4