Judul: Penentuan Lokasi, Luas, dan Volume Genangan Air Sebagai Potensi Cadangan Airtanah di Perumahan Tamansari Persada, Bogor
Abstrak: The changes of the green land-use as retention area to become housing area, will cause problems like enhancement of run-off, reduction of water infiltration to the land, as well as puddle and flood if water volume increases in some area. A study was conducted with the objective to determine the location, area, and volume of puddles at Tamansari Persada Residential, Bogor as groundwaters storages potential. The procedure of sampling and analysis of the data were determination of fixed location of puddles, determination of coordinate points for area and volume of puddles, and analysis of the data by aSurfer 8’s software and Gridding Krigging Method. According the research result from March to April 2013, there were three fixed puddles locations at Palm Cluster and routine flood occured when rain was falling and the maximum volume and area puddles for the first location were 0.11 m3 and 6.57 m2, the second location were 0.26 m3 and 18.82 m2, and the third location were 0.35 m3 and 20.77 m2. Generally, there are correlation from enhancement of lowest elevation, areas, and volumes of puddle and have been proved by Linear Regresion Method. From this method will produced puddle potential formula and the value of determination coefficient (R2) closer to 1. The location, areas, and volume of puddles could becoming reference of puddles potential and absorbed to the ground as an groundwater.
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Judul: Analisis Hubungan Curah Hujan dengan Volume Genangan Air di Perumahan Tamansari Persada, Bogor
Abstrak: Negative impact due to the disappearence of water catchment is the decrease of land capability to infiltrate rainwater causing run off, ponding water or even flooding. This research was conducted with anobjective to know a relationship between rainfall and volume of the ponding water. The location selected in this research was Tamansari Persada Residence in Bogor between March until April 2013. The research was conducted in two phases, which were primary data collection by measuring coordinate points of the ponding water and secondary data collection of daily rainfall. Gridding method based on Surfer 8 was used to calculate the volume. The results showed linear equation relationships between rainfall and volume of ponding water at Location 1 is y = 14.80x - 1.456 with the coefficient of determination 0.558, in Location 2 is y = 30.56x + 96.18, with the coefficient of determination 0.901, and Location 3 linear is y = 53.16x + 46.89, with the coefficient of determination 0.685. The small coefficient of determinations at Locations 1 and Location 3 might be caused by several factors such as ineffective use of time measurement.
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Judul: Sifat Fisik dan Kimia Daging Kelinci Hyla Hycole dan New Zealand White.
Abstrak: Hyla dan hycole merupakan kelinci pedaging unggul dengan laju pertumbuhan dan tingkat prolifik yang tinggi. Kedua kelinci tersebut masih relatif baru dikembangkan di Indonesia, sedangkan kelinci new zealand white telah adaptif dan populer sebagai kelinci pedaging. Penelitian ini bertujuan untuk membandingkan kualitas daging kelinci hyla, hycole dan new zealand white berdasarkan sifat fisik dan kimia. Kelinci mulai dipelihara pada kisaran rataan bobot 2 000-2 256 g hingga mencapai bobot akhir 2 700-3 500 g dengan pemberian kualitas pakan yang sama (protein 17.8% dan energi 4098 kcal). Otot longissimus dorsi digunakan sebagai bahan uji sifat fisik, sedangkan daging dari setiap potongan komersial digunakan untuk uji sifat kimia. Hasil uji sifat fisik menunjukkan bahwa rataan nilai pH akhir daging kelinci hyla, hycole dan new zealand white adalah 5.67, sedangkan untuk susut masak 38.27-39.72%, keempukan 3.10-3.70 kg cm-2 dan DMA 23.75-28.18%. Hasil uji sifat kimia menunjukkan nilai rataan persentase kadar air 75.00-77.26%, abu 1.08-1.14%, lemak 3.29-4.05%, protein 18.15-19.64% dan gross energy 1 327.00-1 521.20 kcal kg-1. Kelinci hyla, hycole dan new zealand white memiliki kualitas daging yang sama baiknya.
Keyword: hycole, hyla, new zealand white, sifat fisik dan kimia