KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effect of Harvesting Time and Making Method on Feed Value and Fermentative Quality in Silage of Whole Crop Barley

수확시기와 조제방법이 청보리 사일리지의 사료가치 및 발효품질에 미치는 영향

  • Received : 2013.06.26
  • Accepted : 2013.11.13
  • Published : 2013.12.30
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Abstract

This experiment was conducted to obtain basic a information on feed value and fermentative quality of whole crop barley with different harvesting time and making method. As a result, in case of feed value, crude protein, NDF and ADF content were decreased with late harvest, but TDN was increased. In the silage, the results were similar and these patterns showed the same before and after the silage making. Thus, there was no significantly difference in bale and chopper. In case of fermentative quality, pH of the silages showed increasing with late harvesting time but the contents of organic acid did lower, and those tendencies were the same in both bale and chopper condition. But the lactic acid content were approximately 23 percent higher in chopped condition. In conclusion, ensiling at yellow ripe stage is better than other stages, chopped ensiling could improve fermentation quality.

이 연구는 조제방법에 따른 수확시기별 청보리의 사료가치 및 발효품질을 평가하기 위하여 실시하였다. 그 결과, 청보리 원재료의 사료가치는 수확시기가 늦어짐에 따라 조단백질, NDF와 ADF 함량은 감소하고, TDN 함량은 증가하였다(P<0.05). 이러한 수확시기별 사료가치의 변화는 사일리지에서도 제조 전과 같은 경향이었으며, 사일리지 제조 전후를 비교하여 볼 때, 조단백질과 섬유소 함량이 다소 증가되는 경향을 보였다. 조제방법별로 볼 때 베일과 초퍼에 따른 사료가치의 차이는 보이지 않았다. 사일리지의 pH는 모든 처리구에서 수확시기가 늦어질수록 높아지는 경향을 보였고, 유기산 함량은 사일리지 조제방법에 관계없이 수확시기가 늦어질수록 줄어드는 경향이었으며(P<0.05), 조제방법별로 볼 때 품종에 관계없이 일반수확보다 초퍼에서 젖산함량이 약 23%정도 증가하는 경향이었다(P<0.05). 이상의 결과를 종합하여 볼 때, 청보리는 황숙기에 수확하는 것이 유리하며, 베일보다는 초퍼로 사일리지를 제조하는 것이 발효품질을 향상시킬 수 있는 방법이라고 사료된다.

Keywords

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