Effects of Rice Straw, Annual Ryegrass Straw and Klein Grass Hay on Disappearance Rates of Nutrients in the Rumen and CH_4 Emission in Hanwoo Cows

• Yang Ka Young

  Laboratory of Animal Welfare Management, College of Animal Life Sciences, Kangwon National University

• Kim Soo Young

  Laboratory of Urban Planning, Department of Urban Planning, Graduate School of Urban Planning, Inha University

• Kim Young Sub

  Laboratory of Animal Welfare Management, College of Animal Life Sciences, Kangwon National University

• Ha Jae Jung

  Gyeongsangbuk–Do Livestock Reserch Institute

• 下條 雅敬

  九州大学大学院農学研究院資源生物科学部門動物・海洋生物資源学講座 : 准教授

• Song Young Han

  Laboratory of Animal Welfare Management, College of AnimalLife Sciences, Kangwon National University

抄録

The objective of this study was to investigate the effects of rice straw, annual ryegrass straw, and Klein grass hay on ruminal disappearance characteristics and CH_4 emission in Hanwoo cows. Two Hanwoo cows (358±10.61 kg) fistulated at the rumen were treated with two replications of each treatment during the 63–day experimental period. In accordance with TDN (total digestible nutrients) of the Korean Feeding Standard for Hanwoo (NISA, 2007), concentrates and forage (6:4 ratio) were provided twice a day, with a free access to mineral block and water. Using the in situ method with a nylon bag, disappearance rates in the rumen of DM, CP, NDF, and ADF were measured. CH_4 emissions were measured hourly using a hood–type chamber. Disappearance rates in the rumen of DM, CP, NDF, and ADF were higher in Klein grass hay, rice straw, and annual ryegrass straw, in that order, with significantly higher (p<0.01) in Klein grass hay than in rice straw and annual ryegrass. The average hourly CH_4 emissions were as follows; annual ryegrass straw (169.89±6.94 mg/hr), rice straw (139.92±18.89 mg/hr), and Klein grass hay (128.20±4.91 mg/hr), significantly higher (p<0.01) in annual ryegrass straw than in Klein grass hay. These results suggest that rice straw is a useful feed resource for ruminant production, which is mostly utilized as a domestic feed. However, imported roughage such as annual ryegrass straw showed lower disappearance and higher CH_4 emission than rice straw.

収録刊行物

• Journal of the Faculty of Agriculture, Kyushu University

  Journal of the Faculty of Agriculture, Kyushu University 60 (2), 349-355, 2015-09-18

  九州大学大学院農学研究院

キーワード

• Annual ryegrass straw
• CH_4
• Hanwoo cow
• Klein grass hay
• rice straw

詳細情報

• CRID: 1390009224684799616
• NII論文ID: 120005661368
• NII書誌ID: AA00247166
• DOI: 10.5109/1526394
• HANDLE: 2324/1526394
• ISSN: 00236152
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles