I would like to express my seminar thanks to my seminar advisor, Asst. Prof. Pitcharat Sanchisuriya for her invaluable help and constant encouragement throughout the course of this research. In addition, I thank my teacher, Department of Animal Sciences. Faculty of agriculture, Khon Kaen University of for suggestions and all their help. Finally, I most gratefully acknowledge my parents elder and my friends for all their support throughout the period of this research.