Judul: Performa Itik Alabio Jantan dan Betina Berdasarkan Bobot Tetas
Abstrak: Duck’s hatchery industry produces a diverse weight of Day old Duck’s (DOD) because the hatched eggs have diverse weight. The diverse of DOD weight indicates to cause affect to the performance of ducks. Research was conducted to measure the influence of hatching weight to performance of Alabio duck’s age 0 to 8 weeks. This research used 47 males and 96 females Alabio duck. Alabio’s DODs were separated based on hatching weight, that is small grade (34,39 ± 1.70), medium grade (38.57 ± 0.91), and large grade (43.12 ± 1.98). All ducks had same treatment and maintenance system. This research used randomized completely design with 2x3 factorials of sex and hatching weight. The observed variables ware consumption, average daily gain, weight cuts at 8th weeks, feed conversion, and mortality. From this research, hatching weights didn’t influenced to all performances, however sex can influence to daily gain, body weight at 8th weeks, and feed conversion. Male ducks have daily gain and body weight at 8th weeks bigger than female ducks. Male ducks have lower feed conversion than female ducks.
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Judul: Laju pertumbuhan dan tanggapan faal itik muda yang di pelihara pada kepadatan ternak dan sistim lantai yang berbeda
Abstrak: An experiment has been conducted to asses the optimum stocking density for Alabio ducks, based on their productive and physiological responses. Five hundred Alabio female ducks were reared under the same condition up to two weeks of age and were then transferred to two floor systems (deep litter and slatted bamboo floor) and five stocking densities (10, 215, 20, 25 and 30 birds/m ). At six weeks of age stocking density were changed to 4, 6, 8, 10 and 12 birds/m2 for the remainder of the experiment. Three replicates of 15 birds were used per treatment. The experimental design, was the split-plot block. Parameters measured were body weight gain, water used, feed consumption, feed conversion ratio, mortality, weight of spleen, adrenal and thyroid glands, hematocrit, some blood biochemical levels, micro climate in the pens. Some behavioural observations were also made. The results of the experiment at two to six weeks of age showed that high stocking density had a significantly effect on retarding growth, reducing feed efficiency, increasing mortality, reducing spleen absolute weight, reducing serum triglycerides level, increasing temperature in pens and causing poorer feathering condition.
Keyword: Young Ducks;, Biokimia unggas;, Itik alabio;, Bogor Agricultural University;

Judul: Nanokristalin Pirit (FeS2) sebagai Material Semikonduktor Fotovoltaik.
Abstrak: Teknologi fotovoltaik adalah suatu proses yang dapat mengubah sinar matahari menjadi energi listrik dengan media semikonduktor. Penggunaan sel surya untuk fotovoltaik hanya dapat mengonversi radiasi matahari menjadi energi listrik kurang dari 20%. Efisiensi akan meningkat ketika material semikonduktor untuk fotovoltaik dibuat menjadi ukuran nano. Pirit merupakan salah satu material semikonduktor fotovoltaik yang memiliki energi pita celah (Eg) dalam kisaran 0.8–0.95 eV. Energi pita celah tersebut terbukti meningkat ketika disintesis dengan metode hidrotermal menggunakan beragam molar [S]:[Fe] pada suhu 200 °C dalam 24 jam. Nilai energi pita celah yang dihasilkan adalah 1.58–2.073 eV. Ukuran nanokristalin pirit yang dihasilkan berada pada kisaran 21.04–58.77 nm menurut data Particle Size Analyzer. Besarnya ukuran nanokristal pirit yang tumbuh kurang dari 50 nm merupakan poin penting untuk aplikasi fotovoltaik.
Keyword: Hidrotermal, fotovoltaik, nanokristal, pirit