Effect of protein nutrition on ammonia emission from a cubicle house for dairy cattle

M.C.J. Smits, H. Valk, A. Elzing, A. Keen

    Research output: Contribution to journalArticleAcademicpeer-review

    80 Citations (Scopus)

    Abstract

    The effect of protein nutrition on the urinary concentration of urea and subsequent emission of ammonia into the atmosphere was studied using a mechanically ventilated cubicle house containing 34 lactating dairy cows (cross bred Holstein Friesian and Dutch Friesian). Two silage-based diets with different amounts of rumen-degradable protein balance (OEB), were alternately fed during six 3-week periods. Diet L contained a small amount of OEB and resulted in a 39% lower emission rate, compared with diet H which contained a high amount of OEB. The concentration of urea in the urine samples was 42% lower when feeding diet L compared with diet H. A decrease in urea concentration as a result of a lower OEB could contribute substantially towards diminishing the emission of ammonia from cubicle houses for dairy cattle.
    Original languageEnglish
    Pages (from-to)147-156
    JournalLivestock Production Science
    Volume44
    Issue number2
    DOIs
    Publication statusPublished - 1995

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