Judul: Karakteristik morfometri ukuran dan bentuk tubuh kmabing peranakn etawah pada kelompok umur di koperas daya mitra primata
Abstrak: The present experiment was conducted to discrimnate the body size and body shape of the Etawah grade goats in different group of age at Daya Mitra Primata (DMP) Cooperative. Forty-seven of Etawah grade goats at DMP Cooperative were used. All Etawah grade goats was grouped according to sex and age. It were consisted of 32 female goats (five heads of I0, six head of I1, seven heads of I2, eleven heads of I3 and three heads of I4) adan 15 female goats (six head of I0, five heads of I1 adn four head of I4).
Keyword: 

Judul: Ukuran dan Bentuk Tubuh Kambing Perah Peranakan Etawah Di Peternakan Doa Anak Yatim Farm dan Cordero Farm
Abstrak: The study observed body size and shape variability of Etawah Grade dairy goat in Doa Anak Yatim Farm (DAYF) in Waru Tegal village, District Ciampea and Cordero Farm (CF) in Ciapus, Bogor. EG dairy goat consisted of 185 heads were divided into 97 heads in DAYF (45 males and 52 females) and 88 heads in CF (35 males and 53 females). Goat was not randomly selected (purposive sampling). Descriptive statistics indicated that body measurements of PE dairy goat in CF was higher and selected strict than in DAYF. T2-Hotelling showed highly significant (P<0.01) differences in linear measurements of body surface of EG dairy goat in DAYF and CF. Principal Component Analysis showed that the size discriminator of EG dairy goat in DAYF and in CF was similar, namely body length and chest circumference. Eigen vector of body length and chest circumference of EG dairy goat in DAYF were +0.528 and +0.550 respectively, and that of in CF were +0.476 dan +0.522 respectively. The possibility proportion of Ettawa and Local (Kacang) blood goats observed was the same. The range of PE goat size in DAYF obtained at 58.722 to 185.974 wider than those found in CF at 76.323 to 182.257. The shape discriminator of EG dairy goat in DAYF and CF was different. The shape discriminator of EG dairy goat in DAYF was 0.768, whereas that of body length in CF was 0.837. Clustered diagram showed that the body size will increase and its shape will change as the EG dairy goats from both farm are getting older.
Keyword: 

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition