This study was conducted from October 2014 to May 2015 to explore forage production and feed values of Italian ryegrass, Rye and whole crop barley as winter forage crops in the Southern region of Korea. The experimental location was over 10 points for each species and each sampling point area was 1 m² (Width: 1 m × Length: 1 m). Air mean temperature and rainfall in the Southern region of Korea during the experimental period was 6.95 ± 5.75℃ and 70.45 ± 54.68 mm, respectively. Fresh forage yield of Italian ryegrass, the most cultivated forage in the Southern region of Korea, was 44.4 ± 7.0 ton/ha. The percentage of dry matter for whole crop barley was 28.9 ± 7.0%. Crude protein (CP) was higher in Italian ryegrass (10.7 ± 5.3%) while total digestible nutrient (TDN) had the highest value in whole crop barley. Crude protein was not significantly different by location. However, the neutral detergent fiber (NDF), acid detergent fiber (ADF) and total digestible nutrient value of forage from Jeonbuk province were higher than in forage from Gyeongnam province.

Ⅰ. INTRODUCTION
Ⅱ. MATERIALS AND METHODS
Ⅲ. RESULT AND DISCUSSION
Ⅳ. CONCLUSION
Ⅴ. ACKNOWLEDGEMENT
Ⅵ. REFERENCES

• Min Jeong So(National Institute of Animal Science)
• Hyeon Shup Kim(National Institute of Animal Science)
• Ji Hye Kim(National Institute of Animal Science)
• Sang-Hoon Lee(National Institute of Animal Science)
• Ki-Won Lee(National Institute of Animal Science)
• Jeong Sung Jung(National Institute of Animal Science)
• Kyung-Il Sung(Department of Feed Science and Technology, Kangwon National University)
• Jing lun Peng(Department of Feed Science and Technology, Kangwon National University)
• Hyung Soo Park(Department of Feed Science and Technology, Kangwon National University) Corresponding author