Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Evaluation of Forage Yield and Feed Value of Winter Crops Following Rice Harvest at Paddy Field in the Southern Region of Korea

  • Song, Hui Mang (Department of Animal Science, College of Agriculture & Life Sciences, Chonnam National University) ;
  • Park, Sang Hyun (Department of Animal Science, College of Agriculture & Life Sciences, Chonnam National University) ;
  • Kim, Hwan (Department of Animal Science, College of Agriculture & Life Sciences, Chonnam National University)
  • Received : 2021.06.08
  • Accepted : 2021.06.21
  • Published : 2021.06.30
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Abstract

This study was carried out to evaluate the forage yield and feed value of winter crops such as Italian ryegrass (IRG), oat, rye, barley, and hairy vetch. Forage crops were sown on 15th October 2018 in a paddy field after harvesting rice and forage crops were harvested at two times of 25th April 2019 and 18th May 201 9. The highest dry matter (DM) yield was harvested from rye among the five species of forage crop on 18th May. DM yield of all forages was increased 14.4% on 18th May compared to 25th April. The highest yield of crude protein (CP) was obtained from hairy vetch on 25th April, whereas it was decreased (38.1%) on 18th May. Moreover, the highest total digestible nutrient (TDN) yield and relative feed value (RFV) was harvested respectively from rye and hairy vetch on 25th April. Delay of harvest time considerably increased DM yield but significantly decreased CP and RFV. In conclusion, rye was the best source of DM and TDN and hairy vetch was the high-quality feed. Rye harvested on 25th April is the proper forage for resolving Korea's problem of insufficient forage yield.

Keywords

Acknowledgement

This study was financially supported by Chonnam National University (Grant number: 2019-3901).

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