Judul: Estimation of Additive and Non-Additive Genetic Variances of Body Weight, Egg Weight and Egg Production for Quails (Coturnix coturnix japonica) with an Animal Model Analysis
Abstrak: This study estimates the additive and non-additive variances for egg production and body weight traits of two lines of quails from a long-term selection with the help of the REML method. For the body weight of 42-day-old females (BW42f) and males (BW42m), a total of 7,934 records for line 1 and 7,214 records for line 2 from 21 generations were used in our analyses. Additionally, 1,717 records of females from line 1 and 1,671 records of females from line 2 contained information on their egg production at an age of 42 to 200 days (EN200), on the average egg weight for the first 11 weeks of their laying season (EW1), on the average egg weight from weeks 12 to 23 (EW2), and on their body weight at an age of 200 days (BW200f). A multivariate additive animal model and one-trait dominance models, which include the inbreeding coefficients as covariates, were fitted to the data. The estimates of the heritability gained from our dominance models were smaller than those from the additive model. For line 1, the heritability values decreased for EN200 from 0.35 to 0.32, for EW1 from 0.66 to 0.56, for BW200f from 0.42 to 0.38, and for BW200m from 0.51 to 0.49, respectively. For the first line, the respective ratio (d2) of the dominance variance to the phenotypic variance for EN200, EW1, BW200f and BW200m was 0.08, 0.22, 0.09 and 0.21, and the values for the second line were 0.12, 0.06, 0.001 and 0.23.
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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: Redesain Taman Merdeka Berbasis Perilaku Manusia di Kota Metro
Abstrak: Kota Metro merupakan salah satu kota di Provinsi Lampung. Kota Metro memiliki lima taman kota dan Taman Merdeka merupakan taman kota yang terluas. Sayangnya, kondisi Taman Merdeka Kota Metro saat ini cukup menyedihkan. Pemugaran yang kurang sesuai, penggunaan yang semakin intensif, kurangnya pengelolaan taman, dan desain awal yang kurang memperhatikan perilaku pengunjung, menjadi faktor utama menurunnya kualitas taman ini. Tujuan dari penelitian ini adalah mengidentifikasi keadaan existing Taman Merdeka dan menganalisis serta membuat sintesis dari kendala dan potensi yang terdapat di Taman Merdeka, serta membuat konsep dan melakukan perancangan ulang untuk memperbaiki fungsi dan estetika Taman Merdeka berbasis perilaku manusia. Metode yang digunakan dalam penelitian ini adalah metode The Design Process oleh Gail Hansen de Chapman yang telah dimodifikasi dan metode pengamatan, Indepth interview, serta kuesioner untuk mengetahui perilaku pengguna Taman Merdeka Kota Metro. Konsep dasar dari redesain ini adalah untuk membuat Taman Merdeka Kota Metro menjadi taman yang ikonik dan identik menggambarkan Kota Metro. Konsep dasar dari redesain ini adalah lembaran kertas yang disintesis menjadi bentuk segitiga. Hasil akhir dari desain ini adalah rencana tapak yang memuat lima ruang utama dalam tapak. Ruang-ruang tersebut, yakni ruang penerimaan, ruang rekreasi aktif, ruang rekreasi pasif, ruang pelayanan, dan ruang pembatas. Nilai unggul dari desain ini adalah kelestarian vegetasi eksisting di dalam tapak
Keyword: Taman Kota, Perilaku Manusia, Redesain Lanskap