• Jaar
    1971
  • Auteur
    Dijkstra, N.D.
  • Bron
    Netherlands Journal of Agricultural Science 19 (1971) 4
    • artikel

    Feed intake by grazing dairy cows. 3. Comparison of lactating and dry pregnant cows.

  • Jaar
    1971
  • Auteur
    Dijkstra, N.D.
  • Bron
    Netherlands Journal of Agricultural Science 19 (1971) 4
    • Bekijk Internetpagina