Judul: Tingkah Laku Ingestive dan Seksual serta Agonistik Puyuh Jantan (Coturnix-coturnix japonica) pada Kepadatan Kandang yang Berbeda
Abstrak: Quail have considerable potential as a producer of eggs. Some of them likes C.japonica can spawn more than 300 points in one year at the first production. Quail livestock production can developed optimally in good maintenance management. Factors of stocking density, sex ratio and behavior could be affected to egg production. The subject of this research was to determine the optimal stable density on the behavior of quail. There were three treatment in this research, first density (there was 4 male and 8 female), second density (there was 5 male and 10 female) and third density (there was 6 male and 12 female). The treatment production indicated that the P1 and P2 showed the greatest frequency of sexual was 0,11, P2 showed the greates frequency of agonistic was 0,07 and Ingestive behavior was 7,13. The most highest sexual behavior frequency was showed at stocking density P1 and P2. The most highest agonistic behavior frequency at stocking density P2 and the most highest Ingestive behavior frequency at stocking density P3.
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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: Utilization of terra/MODIS L1B data for analysis of horizontal wind profile in the troposphere
Abstrak: This study was concerned with horizontal wind derived from data collected with the Moderate-resolution Imaging Spectroradiometer (MODIS) on board the NASA’s Earth Observation System (EOS)-Terra satellite. The aim of this study is to develop a method for the estimation of horizontal wind movement in the troposphere based on Navier-Stokes equation. The method was applied to a calibrated and geolocated Terra/MODIS L1B 1 km data set. The data inputs to estimate surface temperature are retrieved from TIR (Thermal Infrared) bands 31 (10.780 μm to 11.280 μm) and 32 (11.770 μm to 12.270 μm). The obtained surface temperatures were later used to approximate geopotential height on a constant-pressure surface by using the modified Poisson equation. The main assumptions used are the hydrostatic equilibrium, ideal gas law, constant lapse rate and constant acceleration of gravity. Based on the distribution of geopotential height, the pressure gradient force is measured by the gradient of geopotential on an isobaric coordinate to present the horizontal wind profile. For certain topographic areas especially in the mountain ranges, there was a disadvantage of using pressure as a vertical coordinate which lead to inaccuracy. In spite of that, Terra/MODIS L1B data with 1 km spatial resolution can be used to estimate the horizontal wind movement in the troposphere.
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