Judul: Persentase Karkas dan Pertumbuhan Organ Dalam Ayam Broiler pada Frekuensi dan Waktu Pemberian Pakan yang Berbeda.
Abstrak: Broilers are genetically developed as rapid growing chickens to produce high abundant of meat in a short period. This potency can only be achieved by supporting of good quality of feed and appropriate feeding frequencies. Three different feeding frequencies with five replications were carried out for five weeks involving 135 broiler chickens in farm located in Babakan village, Ciseeng subdistrict, Bogor regency. The treatments were P1 (the feed was given in the morning at 06.00 am by 100%), P2 (the feed was given in the morning at 06.00 am by 50% and another 50% was given in the afternoon at 17.00 pm) and P3 (the feed was given in the morning at 06.00 am by 40%, in daytime at 11.00 am by 20% and in the afternoon at 17.00 pm by 40%). The traits observed were slaughtered weight, percentage of carcass and internal organs (liver, proventriculus, gizzard, small intestine and colon). All data were subjected to analyzes of variance (ANOVA). Income over feed and chick cost (IOFCC) were descriptively analized. The result showed that there were no significant different among treatments on slaughtered weight, percentage of carcass, liver, proventriculus, gizzard, small intestine, large intestine, leght of small intestine and large intestine. The treatment P3 resulted in highest IOFCC.
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Judul: Pola pertumbuhan organ dan bagian tubuh ayam broiler
Abstrak: Penelitian ini telah dilaksanakan di Perusahan Peternakan Ayan Potong milik Ir. I Gede Pariawan di desa Kalianget, Buleleng, Bali. Penelitian ini bertujuan untuk mempelajari pola pertumbuhan organ dan bagian tubuh ayan broiler. Percobaan menggunakan faktorial 2x3x10, yaitu rancangan acak lengkap pola taraf faktor jenis kelamin strain (Hubbart, umur AM pemotongan 2 (jantan dan betina), 3 taraf faktor 777 dan HF 202), dan 10 taraf faktor (1, 2, 3, 4, 5, 6, 7, 8, 9, 10 minggu). Setiap kombinasi perlakuan dicobakan terhadap 5 ekor ayam, seluruhnya sebanyak 300 ekor. sehingga jumlah ayam ragam untuk mengetahui pengaruh masing-masing faktor Setelah faktor-faktor yang yang berpengaruh diidentifikasi pengaruhnya, dicari bentuk Data yang diperoleh dianalisis dengan analisis diteliti dan interaksinya. hubungan antara umur pemotongan dengan berat peubah yang diamati. Bentuk hubungan antara umur pemotongan dengan berat peubah yang diamati dicari dengan analisis regresi polinom. Berdasarkan plot data yang diperoleh dibuat regresi model sigmoid, dengan harapan dapat mempermudah prosedur pendugaan dan lebih mengacu pada bidang ilmunya, sehingga hasil yang diperoleh lebih mudah menyimpulkannya. Hasil penelitian yang diperoleh menunjukkan bahwa kurva pertumbuhan organ dan bagian tubuh broiler ayan berbeda antara yang jantan dengan yang betina, kecuali berat lemak karkas, sedangkan antar strain yang diteliti tidak berbeda. Kurva pertumbuhan model sigmoid cukup baik menggambarkan pola pertumbuhan organ dan bagian tubuh ayam broiler. Berat badan, karkas dan komposisi karkas yaitu tulang, daging dan kulit, bagian-bagian tubuh dan organ-organ tubuh ayam broiler jantan dapat mencapai ukuran berat yang lebih besar daripada ayam broiler betina. Berdasarkan titik belok yang diperoleh dari garis regresi model sigmoid, setiap organ dan bagian tubuh ayan broiler mempunyai urutan perkembangan yang berbeda-beda.
Keyword: Broiler

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