Labor-saving Stocking Management of Kentucky Bluegrass (<i>Poa pratensis</i> L.) Dominant Pasture. 3. Animal performance under continuous stocking with a daily gain of 0.8 kg or more

DOI

Bibliographic Information

Other Title
  • ケンタッキーブルーグラス（<i>Poa pratensis</i> L.）を基幹とする放牧草地の省力的利用管理技術　3．放牧期間中の日増体量を0.8 kg以上にした場合の連続放牧下における家畜生産性

Abstract

<p>To establish a labor-saving cattle stocking management method in temperate grass area, we investigated animal performance in continuous stocking on Kentucky bluegrass (Poa pratensis L.) and white clover (Trifolium repens L.) mixed sward in Hokkaido for 16 years. Holstein cattle (mean initial age, 6.9 months; body weight, 231 kg) were put out to pasture. To reduce the surplus herbage, stocking was initiated at a plant length of 5 cm, and the annual fertilization rate was decreased to 2-3, 3, and 4-7 kg/10a/year of N, P2O5, and K2O, respectively, and the entire amounts were fertilized in late June after spring flash. The average stocking intensity at the start was set at 1,107 kgBW/ha, and the number of grazing animals was reduced so that the daily body weight gain was 0.8 kg/head/day or more during the grazing period. The number of the fixed stocking days and the body weight gain per hectare were positively correlated with the herbage mass, and the daily gain per head was positively correlated with the CP content of the grass. Body weight gain (560-1,000 kg/ha) and stocking capacity (448-592 CD) were obtained.</p>

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Keywords

Details 詳細情報について

  • CRID
    1390297990834258304
  • DOI
    10.14941/grass.69.109
  • ISSN
    21886555
    04475933
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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