褐毛和種牛放牧における草地の二次生産性の推定評価について

DOI

書誌事項

タイトル別名
  • Estimation of Secondary Production of Grazing Fasture by Japanese Brown Cows

抄録

To estimate secondary production of grazing pasture by breeding Japanese Brown cows, the method was investigated. The digestible energy (DE) requirements and animal productive energy for pregnancy and lactation were estimated by the existing formula and parameters. When the relationship between these estimated values and the practical DE intake and live weight gain has been considered, the both values corresponded well with energy balance. And it was shown that this method is available to calculate the DE requirement for maintenance which is important for grazing management of the breeding cows. These results suggested that this method can comprehend the out line of energy balance in the breeding cows under grazing and the results obtained by this method may be useful for the estimation of secondary production and for the management of pasture grazing by the breeding cows.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390001204440976128
  • NII論文ID
    130004185122
  • DOI
    10.11461/jwaras1968.33.23
  • ISSN
    18846394
    09143459
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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