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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Effect of Conditioner Types and Tedding Times on Drying Rate of on Tall Fescue Hay

컨디셔닝 및 반전이 톨 페스큐 건초의 건조율에 미치는 영향

  • Kim, Ji Hye (Grassland & Forages Division, National Institute of Animal Science) ;
  • Choi, Ki Choon (Grassland & Forages Division, National Institute of Animal Science) ;
  • Kim, Hyeon Seop (Grassland & Forages Division, National Institute of Animal Science) ;
  • Park, Hyung Soo (Grassland & Forages Division, National Institute of Animal Science)
  • Received : 2016.05.15
  • Accepted : 2016.06.08
  • Published : 2016.12.31
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Abstract

This study evaluated the effect 3 types of conditioning (Untreated, Impeller, Roller) and the number of times for tedding (rake-teder) performed in one day on the drying rate of tall fescure hay. The experiment was performed at The forage site of Cheonan-si seongwhan-eup National Institute of Animal Sciencee. It took 3 days to make tall fescue hay. The Impeller and Roller conditioning types shortened the haymaking period by 1 day compared to untreated hay. Impeller and roller samples had less than 20% of water content by the $23^{rd}-day$ at 13 o'clock. Tedding frequency failed to affect haymaking. There was no correlation between the three types of conditioning or tedding frequency and acid digestible fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDF), crude protein (CP), or relative feed value (RFV) in tall fescue hay. CP was 12.5~12.9% for the three types of conditioner with 1 or 2 times of tedding a day, Threrfore, conditioner types and gedding frequency had no significant effect on CP.

본 연구는 2013년 5월 22일~24일 3일에 걸쳐 톨 페스큐엔도파이트 프리 품종인 Jesup을 공시하여 톨 페스큐 위주의 목초지에서 수행되었다. 시험기간 평균 온도는 $20.7^{\circ}C$였고 상대습도는 3일평균 64.8%였다. 일조시간은 3일평균 9.27시간으로 건초를 조제하기에 알맞은 기상조건이었다. 컨디셔너별 처리 (임펠러, 로울러)와 무처리로 3가지 처리를 비교하였고, 반전횟수에 따른 차이를 확인하기 위해 임펠러 컨디셔너로 예취한 후 1일 1회 반전, 1일 2회 반전 두 처리를 두었다. 임펠러와 로울러의 수분함량 변화는 둘째날 5월 23일 13시 임펠러 37.30%, 로울러 33.64%였고 무처리구는 51.75%로 컨디셔닝 처리한 두 구와 차이가 컸다. 24일 13시 측정된 수분함량은 임펠러 20.32%, 로울러 19.37%로 20% 전후를 보였고, 무처리구는 28.84%로 약 8~9%의 차이를 보였다. 반전횟수 차이를 보는 실험에서는 23일 13시 1회반전 37.53%, 2회 반전 35.23%였고 24일 13시 1회 반전시 20.48%, 2회 반전시 16.74%로 나타났다. 건초 사료가치 분석 시 컨디셔너별 CP 함량은 무처리 12.5% 임펠러 12.7% 로울러 12.9% 나타났고, ADF는 무처리 37.2%, 임펠러 37.2%, 로울러 35.1%로 나타나 NDF, TDN, RFV 모두 차이는 없었다. 1회 반전시 CP 함량은 12.7%, 2회 반전 12.8%였고 반전횟수에 따른 사료가치의 차이는 없는 것으로 판단된다.

Keywords

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