Judul: Persilangan Pelung Sentul Kampung Ras Pedaging dengan Arab dan Resiprokalnya Umur 1 sampai 12 Minggu
Abstrak: Ayam adalah salah satu ternak penghasil daging dan telur juga sumber protein hewani dari unggas. Produksi daging ayam dapat ditingkatkan melalui peningkatan pertumbuhan ayam. Pertumbuhan ayam ditingkatkan dengan menyilangkan ayam PSKB (pelung, sentul, kampung, dan ras pedaging) dengan ayam arab dan resiprokalnya. Rancangan acak kelompok digunakan untuk menganalisis data terdiri dari 2 jenis ayam APSKB dan PSKBA, dengan periode penetasan sebagai kelompok. Persilangan ayam PSKB dengan arab menghasilkan anakan sebanyak 122 ekor dan persilangan arab dengan PSKB sebanyak 90 ekor. Peubah yang diamati adalah bobot badan, konsumsi pakan, konversi pakan, pertambahan bobot badan, dan mortalitas. Performa ayam APSKB dan PSKBA tidak berbeda nyata. Ayam APSKB dan PSKBA pada umur 12 minggu mencapai bobot badan sebesar 825.1-977.3 g, konsumsi sebesar 582.52-605.9 g, konversi sebesar 5.117-5.635, pertambahan bobot badan sebesar 624.72-761.86 g, dan mortalitas sebesar 15.56%- 20.49%. Ayam APSKB dan PSKBA memiliki pertumbuhan yang sama.
Keyword: ayam arab, ayam PSKB, pertumbuhan, resiprokal

Judul: Performa Produksi Hasil Persilangan Ayam Pelung x Sentul x Kampung x Ras Pedaging Umur 12-21 Minggu
Abstrak: This research studied the performance of PSKB and PSBK chicken in growth phase (12-21 weeks). PSKB chicken was crossbred between pelung-sentul (PS) cock with kampung-meat type (KB) hen. PSBK chicken was crossbred between pelung-sentul (PS) cock with meat type-kampung (BK) hen. This research used 12 males PSKB, 23 females PSKB, 11 males PSBK, and 9 females PSBK. Variables measured were body weight, body weight gain, feed intake, feed conversion, mortality, age of first egg, weight of first egg, and indexs of egg. The result of this research were not significant (P>0.05) between PSKB cock with PSBK cock and PSKB hen with PSBK hen on body weight, body weight gain, feed intake, feed conversion, weight of first egg, and indexs of egg. Age of first egg were significantly different (P<0.05) between PSKB hen with PSBK hen. The males of PSKB and PSBK had better performance than the females. Crossbred of pelung, sentul, kampong, and meat type showed better performance than local chicken.
Keyword: crossbred, performance, PSBK chicken, PSKB chicken

Judul: Pengaruh Perubahan Luasan Glaciers Puncak Jaya Papua Indonesia Terhadap Kapasitas Panas dengan Menggunakan Citra Satelit TM/ETM+
Abstrak: Puncak Jaya glaciersis one of tropical glaciers in the earth that exists in Papua Island, Indonesia- Papua New Guinea. Glaciers have important function as phenomenon record, freshwater storage, and climate change indicator. Area, net radiation, and surface temperature of glaciers were measured by remote sensing method using landsat imagery data in 1989, 1997, 1999, 2000, 2004, 2007, and 2009. Glaciers area was measured by researcher using manual delination and using ArcGIS 9.3 to measure area. Glaciers volume was estimated using Bahr empirical formula, V = β A γ. The result showed total area loss in Puncak Jaya is 72,1% from 4,409 km2 in 1989 to 1,231 km2 in 2009. Total glaciers volume loss from 1989 to 2009 is 77,47%from 123,3 (10-3 km3) to 28,2 (10-3 km3). Nett radiation in glaciers area ranges from 107,5 W/m2 to 294,5 W/m2 with nett radiation mean per year per ice mass 206,2 W/m2. Glaciers albedo ranges from 0,19 to 0,53 with albedo mean per year per ice mass 0,37. Glaciers surface temperature ranges from -7,0oC to 7,0oC with surface temperature meanper year per ice mass -0,6oC. Heat capacity in glaciers area ranges from 0,30 (x 106 MJ K-1) to 110,37 (x 106 MJ K-1) from 1989 to 2009.
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