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Study on Silage Manufacture of Rape Treated as Weed

잡초로 취급된 유채의 사일리지 제조에 관한 연구

  • 최기춘 (농촌진흥청 국립축산과학원) ;
  • 류재혁 (농촌진흥청 국립축산과학원) ;
  • 정민웅 (농촌진흥청 국립축산과학원) ;
  • 박형수 (농촌진흥청 국립축산과학원) ;
  • 김원호 (농촌진흥청 국립축산과학원) ;
  • 김다혜 (농촌진흥청 국립축산과학원) ;
  • 김천만 (농촌진흥청 국립축산과학원) ;
  • 김종근 (농촌진흥청 국립축산과학원) ;
  • 김맹중 (농촌진흥청 국립축산과학원) ;
  • 임영철 (농촌진흥청 국립축산과학원)
  • Received : 2012.04.02
  • Accepted : 2012.08.25
  • Published : 2012.12.31

Abstract

This study was carried out to investigate the effect of harvest stage of rape on nutritive values and quality of round baled rape silage in field of forage crops of Department of Animal Resources Development, National Institute of Animal Science, RDA. Rape was harvested at three different growth stages (flowering, milk and dough stage) and ensiled at each harvest stages. The content of moisture of rape increased with delayed harvest maturity. However, the content of moisture of rape was controlled by pre-wilting (24 hr. and 48 hr). The content of moisture in dough stage was similar to that of haylage. The content of crude protein in round baled rape silage increased with delayed harvest maturity, but the contents of acid detergent fiber, neutral detergent fiber and total digestible nutrient decreased. The pH in all rape silage ranged from 3.8 to 4.4 at three different harvest stages, and pH in dough stage was higher than that of flowering and milk stages (p<0.05). The content of lactic acid of all rape silage increased with delayed harvest maturity (p<0.05), but the content of acetic acid decreased (p<0.05). And then, flieg's score revealed that there was an increase in order; flowering stage (100) = milk stage (100) > ripen stage (88).

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