This research thesis was carried out at the ecological farm of the Centre for Livestock and Agriculture Development (CelAgrid) in Cambodia during the period 150days from July 02, 2006 and to December 02, 2006.
I would like to express my sincere gratitude to the MEKARN Project with the support from the Swedish International Development Authority (Sida) and Swedish Agency for Research and Cooperation (SAREC) to make this study possible.
I would like to express my cordial and faithful gratitude to Dr. T.R Preston, my first supervisor, and second supervisor Dr Kheiu Borin, the Director of Center for Livestock and Agriculture Development (CelAgrid) for advice and encouragement. Thanks are also due to Mr. Chhy Ty for help in analysis the samples in the laboratory and to all staff of CelAgrid and students of Faculty of Animal Science and veterinary especially Mr. Narum, Pearun, Savy and students Kampong Cham National school of Agriculture for their assistance during the entire experiment for taking care of the feeding and management of the pigs.
I also would like to express deep gratitude to Prof. Dr. Brian Ogle, Director of the MEKARN MSc. Course. In sustainable Livestock Production System in Tropics and Prof. Dr. Inger Ledin, from the Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, and Dr. Chhum Phith Loan, the Dean of Faculty of Animal Science and Veterinary Medicine, Royal University of Agriculture, Cambodia for their guidance.
My great thanks to all lecturers who gave me useful knowledge and encouraged me during the course.
I am also grateful to my friends on the MSc course (2005-2007) from Cambodia, Laos, Thailand and Vietnam for their good friendship and sharing.
Lastly I would like to express special thanks to my parents and all my brothers and sisters for their support, encouragements and patience.