Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Effects of Glycine soja and hairy vetch supplementation on the nutritional quality of corn silage

  • Jung, Kang Seok (College of Agriculture and Life Sciences, Chungnam National University) ;
  • Cho, Hyun Min (College of Agriculture and Life Sciences, Chungnam National University) ;
  • Lee, Hyung Suk (Woosong College) ;
  • Heo, Jung Min (College of Agriculture and Life Sciences, Chungnam National University) ;
  • Lee, Soo Kee (College of Agriculture and Life Sciences, Chungnam National University)
  • Received : 2018.01.26
  • Accepted : 2018.03.09
  • Published : 2018.06.30
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Abstract

This study evaluated the effects of Glycine soja (GS) and hairy vetch supplementation on the quality of corn silage. The feeding regimen consisted of a corn silage (Control) and a control supplemented either with 20% GS or 20% hairy vetch with four replicates. All experimental diets were stored for 40 days at room temperature ($20-25^{\circ}C$). The control had a higher (p < 0.05) dry matter level but had a lower level (p < 0.05) of crude protein, crude fat, acid detergent fiber and neutral detergent fiber than any other treatments. Hairy vetch had a higher level (p < 0.05) of acetic acid and butyric acid than any other groups but had a lower level (p < 0.05) of lactic acid than that of the control. A lower silage pH was observed (p < 0.05) in the control compared to the other treatments. The control had lower (p < 0.05) sucrose and fructose concentrations compared to the other treatments. Corn silage supplemented with hairy vetch showed a higher level (p < 0.05) of crude protein and buffer solution protein and a higher ratio of soluble protein to insoluble protein than any of the other groups. Thus, the results of the present study suggest that GS and hairy vetch supplementation of corn silage would be beneficial for maintaining quality and elevating protein levels when compared to the control.

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References

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