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Effects of Forage Cutting and Baler Mixing on Chemical Compositions, Fermentation Indices, and Aerobic Stability of Whole Crop Rice Haylage

조사료의 세절과 베일러 내 교반이 총체벼 헤일리지의 영양소 함량, 발효특성 및 호기적 안전성에 미치는 영향

  • Myeong Ji Seo (Division of Applied Life Science (BK21Four.), Gyeongsang National University) ;
  • Young Ho Joo (Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Seong Shin Lee (Animal Nutrition and Physiology Division, National Institute of Animal Science) ;
  • Ji Yoon Kim (Division of Applied Life Science (BK21Four.), Gyeongsang National University) ;
  • Chang Hyun Baeg (Division of Applied Life Science (BK21Four.), Gyeongsang National University) ;
  • Seung Min Jeong (Department of Grassland and Forage Science, National Institute of Animal Science) ;
  • Ki Choon Choi (Department of Grassland and Forage Science, National Institute of Animal Science) ;
  • Sam Churl Kim (Division of Applied Life Science (BK21Four.), Gyeongsang National University)
  • 서명지 (경상국립대학교 응용생명과학부(BK21Four)) ;
  • 주영호 (경상국립대학교 농업생명과학연구원) ;
  • 이성신 (농촌진흥청 국립축산과학원 영양생리과) ;
  • 김지윤 (경상국립대학교 응용생명과학부(BK21Four)) ;
  • 백창현 (경상국립대학교 응용생명과학부(BK21Four)) ;
  • 정승민 (농촌진흥청 국립축산과학원 초지사료과) ;
  • 최기춘 (농촌진흥청 국립축산과학원 초지사료과) ;
  • 김삼철 (경상국립대학교 응용생명과학부(BK21Four))
  • Received : 2023.03.21
  • Accepted : 2023.03.28
  • Published : 2023.03.31

Abstract

The present study investigated the effects of forage cutting and baler mixing on the chemical compositions, fermentation indices, and aerobic stability of whole crop rice (WCR) haylage. The WCR ("Youngwoo") was harvested at 48.4% dry matter and ensiled into a 300 kg bale silo with forage cutting (whole crop without cutting vs. 5 cm of cutting length). The WCR forages were ensiled without baler mixing process (CON) or with (MIX). The concentrations of dry matter, crude protein, ether extract, crude ash, neutral detergent fiber, and acid detergent fiber of whole crop rice before ensiling were 48.4, 9.70, 2.57, 6.11, 41.2, and 23.5%, respectively. The forage cutting did not affect the chemical compositions, fermentation indices, microbes, and aerobic stability of WCR haylage (p>0.05). The CON haylages tend to be higher in NDF content (p<0.10). The MIX haylages had lower in lactate (p=0.019), and lactate:acetate ratio (p<0.001). The MIX haylages had higher in lactic acid bacteria (LAB) (p=0.010). Therefore, this study concluded that the fermentation quality of WCR haylage improved by baler mixing, but had no effects by forage cutting.

본 연구에서는 총체벼 세절과 베일러 내 교반이 곤포 헤일리지의 영양소 함량, 발효특성 및 호기적 안전성에 미치는 영향을 규명하고자 수행하였다. 총체벼 세절은 영양소 함량, 발효특성 및 호기적 안정성에 영향을 미치지 않았다. 하지만, 베일러 내교반 시, 총체벼 곤포 헤일리지의 NDF와 lactate 함량 및 lactat: acetate 비율은 감소하였으나 LAB는 증가하였다. 이상의 결과에서, 베일러 내 교반은 총체벼 곤포 헤일리지의 발효품질 개선에 유리한 것으로 확인되었다.

Keywords

Acknowledgement

본 연구는 농림식품축산기술기획평가원의 연구사업(과제번호: 319039-03-3-HD020)의 지원에 의해 이루어졌습니다.

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