Judul: Performa produksi burung puyuh (Coturnix-coturnix japonica) yang diberi pakan dengan suplementasi omega-3
Abstrak: Supplementation of Omega-3 in ration may enhance Omega-3 and lower the cholesterol contents in quail eggs. However, its impact to productive performances has not been clearly proved. This current experiment aimed to study the influence of Omega-3 supplementation in ration on productive performances of Japanese quail (Coturnix-coturnix japonica). This study was carried out for two months in the field laboratory of Poultry Production and Technology, Faculty of Animal Science, Bogor Agricultural University. This study involved 298 Japanese quail age 10 weeks and designed completely randomized in 5 treatments with 4 replications. The applied treatments were Omega-3 supplementation in the ration: P1 (control), P2 (1.5% Omega-3), P3 (3% Omega-3), P4 (4.5% Omega-3), and P5 (6% Omega-3). The observed traits were feed consumption, egg production, egg weight, feed conversion, mortality, and index of quail egg. All data were collected and descriptively analyzed. This study revealed no influence of Omega-3 supplementation to the production performance and index of quail egg.
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Judul: Performa Produksi dan Kualitas Telur Puyuh (Coturnix-coturnix japonica) pada Kepadatan Kandang yang Berbeda
Abstrak: Stocking density is one of important environmental factor which is need to be considered in generating good production and quality of japanese quail (Coturnix-coturnix japonica) egg. This study was aimed to investigate the effects of various stocking density and determine the most optimum cage density on production and quality of quail egg. A total of 135 of japanese quails were used in this study. The quails were kept in cages with a stocking density of 12 birds, 15 birds, and 18 birds on 62 x 50 x 26 cm cages and each level of treatment consisted of 3 replications. Feed consumption, feed conversion ratio, hen day egg production, average egg weight, and mortality rate were recorded. Egg weight, shell weight, shell thickness, yolk colour, Haugh Unit (HU), and yolk index were also investigated. The obtained data were analyzed by using Analysis of Variance (ANOVA). Data of hen day production and feed conversion were presented descriptively. All traits were not different among treatments. The quails were kept in cages with a stocking density of 12 birds revealed the most optimum egg production according to the data of hen day production and feed conversion.
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Judul: Analisis Debit Banjir di DAS Way Sekampung, Provinsi Lampung dengan Pemodelan SWAT
Abstrak: Selama lebih dari 15 tahun terakhir telah terjadi146 kejadian banjir di Kabupaten Lampung Selatan yang merupakan bagian hilir dari DAS Way Sekampung. Tujuan penelitian ini adalah melakukan pemodelan debit sungai DAS Way Sekampung dengan model SWAT dan pendugaan debit banjir dengan periode ulang 2, 5, 10, 20, 50 dan 100 tahun di DAS Way Sekampung menggunakan analisis time series dengan hydrognomon. Titik outlet rencana yang digunakan pada pemodelan SWAT yaitu pada 5o 20’ 20” LS dan 105o 32’ 22” BT. Data yang digunakan adalah peta digital elevation model (DEM), tutupan lahan, jenis tanah dan data iklim. Hasil kalibrasi dan validasi menunjukan nilai NSE pemodelan SWAT sebesar 0,39. Berdasarkan analisis time series debit banjir dengan Hydrognomon, debit banjir di DAS Way Sekampung yaitu periode ulang 2 tahun adalah 101,07 m3/det, periode ulang 5 tahun adalah 133,20 m3/det, periode ulang 10 tahun adalah 154,47 m3/det, periode ulang 20 tahun adalah 174,87 m3/det, periode ulang 50 tahun adalah 201,29 m3/det, dan debit banjir dengan periode ulang 100 tahun adalah 221,08 m3/det.
Keyword: DAS Way Sekampung, debit banjir, pemodelan SWAT, time series