Journal of Dairy Science
Volume 86, Issue 3 , Pages 958-969 , March 2003

Supplementation of Methionine and Selection of Highly Digestible Rumen Undegradable Protein to Improve Nitrogen Efficiency for Milk Production1

  • S. Noftsger
    • ,
  • N.R. St-Pierre

      Affiliations

    • Salaries and research support were provided by state and federal funds appropriated to the Ohio Agricultural Research and Development Center, the Ohio State University, manuscript no. 32-02AS.
    • Corresponding Author InformationCorresponding author.

Received 12 August 2002 ,Accepted 26 September 2002.

  • Image Result

    Nitrogen absorbed (NA) versus N intake (NI) for HiCP-LoDRUP (■□), HiCP-HiDRUP (▴▵), LoCP-HiDRUP (●○) and LoCP-HiDRUP + Met (♦♢). Solid symbols represent the primiparous cows; open symbols are multipar

    Nitrogen absorbed (NA) versus N intake (NI) for HiCP-LoDRUP (■□), HiCP-HiDRUP (▴▵), LoCP-HiDRUP (●○) and LoCP-HiDRUP + Met (♦♢). Solid symbols represent the primiparous cows; open symbols are multiparous cows. The solid line represents the regression equation for primiparous cows (NA = 0.80(±0.005) * NI−103(±17)). The dashed line represents the regression equation for multiparous cows (NA = 0.80(±0.005) * NI−132(±11)).

PII: S0022-0302(03)73679-0

doi: 10.3168/jds.S0022-0302(03)73679-0

Journal of Dairy Science
Volume 86, Issue 3 , Pages 958-969 , March 2003

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