This study was undertaken to determine how different harvesting times affected the nutritional compositions in two forage rice varieties(Nokyangbyeo, Dasanbyeo). The contents of crude protein in leaf and stem decreased, with time, after heading in Nokyangbyeo, Dasanbyeo, but there was not so changed in that of spikes. Contents of Neutral Detergent Fiber(NDF) and Acid Detergent Fiber(ADF) in leaf and stem increased slightly but decreased rapidly in these of spikes. Contents of Total Digestive Nutrient(TDN) in spikes was the highest compared to that of the other parts of plants. Contents of Total Digestive Nutrient(TDN) in plants was the highest at 40 days after heading in Nokyangbyeo and was the highest at 50 days after heading in Dasanbyeo.

• Jae-Eun Lee(National Institute of Crop Science, RDA) Corresponding Author
• Young-Up Kwon(National Institute of Crop Science, RDA)
• Chung-Geun Lee(National Institute of Crop Science, RDA)
• Gun-Ho Jung(National Institute of Crop Science, RDA)
• Jung-Gon Kim(National Institute of Crop Science, RDA)