Judul: Analisis Hidrologi Menggunakan Model SWAT di Sub DAS Samin DAS Solo
Abstrak: Samin sub watershed (26 950.4 ha) is a part of Solo watershed that is listed as highest priority to manage. The relationship between rainfall, land cover and soil type is very complex, so hydrology based model is needed to look at characteristics watershed. Soil and Water Assessment Tool (SWAT) is a model that could be used to understand hydrology condition of watershed. The aim of this research is to analyze the hydrology condition and water balance in Samin Sub Watershed using SWAT model in sub watershed Samin. The input that are used in this SWAT model consist of 1:25 000 scale land cover map, 1:50 000 scale soil map, 1:25 000 scale river network map and daily climate data from year 2008-2013. Land cover consist of dry secondary forest (638.5 ha), forest plantations (1550.9 ha), bush (309.9 ha), plantations (902.8 ha), bare land (3.0 ha), 3 dryland agriculture (8628.0 ha), dryland agriculture with bushes (9451.9 ha), and paddy field (3550.4 ha). Soil consist of association of grey alluvial and greyed brown alluvial (4339.0), association of dark grey grumosol and brown mediteran (4743.3 ha), reddish brown latosol (14 714.9 ha), and brown mediteran (3153.2 ha). The validation of the SWAT model results in a NSE value of 0.6 and R² 0.7. This means SWAT model could be used to predict hydrology condition. Water balance of SWAT model shows that with rainfall of 3543 mm/year. Samin Sub Watershed could produce ground water flow of 311.0 mm/year (8.8%), percollation 452.0 mm/year (12.8%), lateral flow 4.3 mm/year (0.1%), surface runoff 2078.4 mm/year (58.7%), and evapotranspiration 697.3 mm/year (19.7%). River in sub watershed Samin will experience drought if there is no rain during the day and time of occurrence 50.75 more rain into the peak flow during the 19.825 days.
Keyword: Bogor Agricultural University (IPB), water balance, SWAT model, Samin Sub Watershed, hydrology analysis

Judul: Analisis Debit Aliran Sungai Menggunakan Model SWAT di Sub DAS Ciasem Kabupaten Subang Jawa Barat
Abstrak: Increasing developed area and decreasing forest area lead to increase runoff coefficient that further to increase the stream discharge during rainy season and draught in dry season. The hydrological model can be applied to understand that phenomena. One of them is SWAT model. Application SWAT model in this research is focused only in rainfall transformation into discharge. Research is conducted in Ciasem Sub Watershed. The aim of this research is to know the dinamics of land use change and stream discharge in Ciasem Sub Watershed, also to know the effectiveness of SWAT Model for analyzing stream discharge by using available data in Ciasem Sub Watershed. The change of land use at 2003, 2006, and 2009 particularly happened on paddy field which was changed into a mixed agricultural dryland area of about 3253,8 ha, decreased runoff coefficient. Discharge estimation using SWAT model with measured rainfall at Curugagung Rain Station as input did not fit succesfully to measured discharge at Ciasem Sub Watershed outlet. Discharge estimation using SWAT model with simulated rainfall as input results better fitting to measured discharge at Ciasem Sub Watershed outlet with the value of R² > 0,51 and NS > 0,74. The result of the simulation showed that land use change of paddy filed to mixed agricultural dryland decreased runoff coefficient from 0,21 to 0,12 and also monthly maximum runoff discharge from 117,55 m3/s to 79,68 m3/s.
Keyword: 

Judul: The effect on niacin supplementation on production and egg cholesterol of hysex brown laying hens
Abstrak: Telur merupakan salah satu bahan makanan asal ternak unggas yang kaya akan gizi, seperti karbohidrat, protein, lemak, vitamin dan mineral, disamping harganya murah, sehingga disebut wonderful food. Oleh karena itu, tidak mengherankan konsumsi telur di Indonesia cukup tinggi dibandingkan dengan bahan makanan sumber protein hewani lain. Disisi lain, adanya persepsi, bahwa sebutir telur mengandung kolesterol relatif cukup tinggi, yaitu 200 - 250 mg atau 1280 mg per 100 g kuning telur (yolk).
Keyword: