Judul: Performance of Broiler in Different Feeding Frequency
Abstrak: Usaha peternakan ayam broiler merupakan salah satu usaha yang potensial untuk menghasilkan daging dan meningkatkan konsumsi protein bagi masyarakat. Faktor yang mempengaruhi keberhasilan usaha ayam broiler adalah pakan (feed), pembibitan (breeding), dan tatalaksana (manajemen). Penghematan biaya pakan merupakan tujuan yang harus dicapai dalam mendapat keuntungan yang maksimal dari hasil produksinya. Frekuensi pemberian pakan yang berbeda akan memberikan hasil performa yang berbeda. Penelitian dilaksanakan di Desa Babakan, Kecamatan Ciseeng, Kabupaten Bogor, Jawa Barat. Penelitian ini menggunakan 135 ekor ayam broiler CP 707umur satu hari Day Old Chick (DOC) tanpa dilakukan pemisahan antara jantan dan betina. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan frekuensi pemberian pakan yang berbeda dan lima ulangan. Setiap ulangan terdiri dari 9 ekor ayam.Perlakuan frekuensi pemberian pakan yang diberikan adalah P1 (pakan diberikan pada pagi hari pukul 06.00 WIB sebanyak 100%), P2 (pakan diberikan pada pagi hari pukul 06.00 WIB sebanyak 50% dan sore hari pukul 17.00 WIBsebanyak 50%) dan P3 (pakan diberikan pada pagi hari pukul 06.00 WIB sebanyak 40 %, siang hari pukul 11.00 WIB sebanyak 20%, dan sore hari pukul 17.00 WIBsebanyak 40%). Peubah yang diamati meliputi konsumsi pakan, bobot badan akhir, pertambahan bobot badan, konversi pakan, mortalitas, dan indeks performa (IP). Hasil penelitian menunjukkan bahwa performa ayam broiler tidak berbeda nyata pada semua peubah. Perlakuan P3 memberikan keuntungan ekonomi lebih baik.
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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: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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