Judul: Analisis Pemanfaatan dan Nilai Ekonomi Air Buangan Pendingin Ruangan (Air Conditioner) di Fakultas Ekonomi dan Manajemen, Institut Pertanian Bogor.
Abstrak: Reuse of wastewater from Air Conditioner (AC) is one alternative that can be used to conserve water resources by using reuse water for toilets, cleaning service, and watering plants. The purpose of this research are to examine the alternative of usage and collectivity that can be done in the utilization of AC wastewater, estimate the economic value of AC, identify factors that influence the magnitude of the economic value of AC wastewater, and analyze the feasibility of the utilization of AC wastewater in Faculty Economics and Management IPB. Methods used for this research were descriptive analysis, Willingness To Pay (WTP), factors analysis that influence WTP value, and Benefit Cost Analysis (BCA). The result showed that based on laboratory test in IPB PROLINK, AC wastewater can be reused for household water usage. WTP value based on the research from sample is Rp 2,36 per liter, this value is low because AC wastewater percepted as sewage. Based on multiple linear regression analysis that has been done, factors that influence WTP value is income level and cost to get the clean water. There are three alternative to collect wastewater from AC, that are (1) reservoir, (2) water torrent, and (3) buckets. Result of the analysis of the feasibility of AC wastewater usage is possible to implement for second and third alternative. Based on feasibility and the value of NPV< Net B/C, and IRR, alternative 2 and alternative 3 are feasible. NPV, Net B/C, and IRR for second alternative is Rp 1.858.711,545, 1,9392, and 24%, whereas for third alternative is Rp 2.473.354,944, 2,7758, and 38,17%. First alternative is not feasible to be implemented because value of NPV < 0, Net B/C < 1, and IRR < interest rate
Keyword: IPB, FEM, BCA, WTP, AC Wastewater, Water Utilization, Economic Value

Judul: Strategi optimalisasi Pengelolaan Sumber Air di Asrama Mahasiswa Institut Pertanian Bogor
Abstrak: Sungai Ciapus dan Sungai Cihideung merupakan anak Sungai Cisadane yang digunakan oleh Asrama Mahasiswa IPB sebagai sumber air yang dikelola oleh Direktorat Umum, Sarana dan Prasarana IPB. Namun, kualitas air yang dihasilkan masih rendah, karena sering terjadi kekeruhan. Upaya penjernihan sudah dilakukan, namun karena keterbatasan anggaran, pengelolaan belum optimal. Penelitian ini bertujuan untuk 1) Mengidentifikasi sistem pengelolaan sumber air di asrama mahasiswa, 2) Mengidentifikasi pola pemanfaatan air oleh mahasiswa asrama, 3) Mengestimasi kerugian ekonomi yang dirasakan mahasiswa asrama akibat keruhnya air di Asrama Mahasiswa IPB, 4) Mengestimasi besarnya kesediaan mahasiswa untuk berkontribusi dalam upaya pengelolaan sumber air di asrama mahasiswa dan mengidentifikasi faktor-faktor yang memengaruhinya, 5) Merumuskan strategi optimalisasi pengelolaan sumber air di asrama mahasiswa. Metode analisis yang digunakan adalah analisis deskriptif, replacement cost, cost of illness, Contingent Valuation Method (CVM), Analisis Regresi Logistik Biner, dan Multi Criteria Decision Analysis (MCDA). Hasil penelitian ini menunjukkan bahwa sistem instalasi pengolahan air dari Sungai Ciapus menggunakan tipe gravitasi, sedangkan Sungai Cihideung menggunakan tipe tekanan. Total pemanfaatan air oleh mahasiswa asrama adalah 158.707 liter/minggu yang berasal dari 73,2% air Sungai Ciapus dan 26,8% air Sungai Cihideung. Saat terjadi kekeruhan air, mahasiswa melakukan strategi adaptasi, sebagian besar mahasiswa mengalami kerugian rata-rata setiap orangnya Rp 205.052/tahun. Rata-rata Willingness to Pay (WTP) mahasiswa dalam berkontribusi untuk pengelolaan sumber air asrama adalah Rp 22.725 per bulan dan faktor yang memengaruhinya yaitu jumlah hari tinggal di asrama dan besarnya kerugian ekonomi. Strategi optimalisasi pengelolaan sumber air yang dapat dipilih yaitu sistem kombinasi (penggantian mesin dosing pump, pengurasan ground water tank (GWT) dan penggantian instalasi air).
Keyword: Multi Criteria Decision Analysis (MCDA), Sumber Air, Willingness to Pay (WTP)

Judul: Gambaran Leukosit Domba Ekor Tipis yang Diinfeksi Haemonchus contortus.
Abstrak: The aim of this study was to investigate the effect of Haemonchus contortus infection to white blood cell profile of Javanese thin tail sheep. Twenty males Javanese thin tailed sheep were divided into five groups, namely infected group of 500 L3, 1000 L3, 2000 L3, 4000 L3 and uninfective group as control. The blood and fecal samples were collected from rectum before and three weeks after infection. The blood samples were collected using venoject® from Jugular vein. The fecal samples were collected directly from rectum. The blood samples were examined to determine total of white blood cell (leukocytes) and white blood cell differential, whereas fecal samples to determine egg per gram. The result showed that Haemonchus contortus infections cause an increased total of leukocyte but were not significantly different among of level infection doses (P>0.05). Number of eosinophils were significantly different among uninfected group (P<0.05), but were not significantly different in number of lymphocyte, monocyte, and neutrophil (P>0.05). There where positively correlated significantly between the amount of egg per gram (EPG) and profile of eosinophil (P<0.05), however were negatively correlated significantly between the amount of egg per gram (EPG) and neutrophil’s profile (P<0.05). There where no correlation significantly between the amount of egg per gram (EPG) and profile of white blood cell, lymphocyte, and monocyte (P>0.05).
Keyword: differential leukocyte, Haemonchus contortus, leukocyte, sheep