The association between somatic cell count patterns and milk production prior to mastitis

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    Abstract

    Association between milk yield, milk composition and patterns of peak in Somatic Cell Counts (SCC) were analysed in 4006 Dutch herds with 1 962 752 lactations. Definitions of peak patterns were based on 3 or more consecutive test days, and differentiated between short and long periods of increased SCC. There was a close association between milk yield at start of lactation, without or before SCC-peaks, and the incidence of SCC-peaks. The higher the milk yield, the more likely that SCC-peaks occurred. During peak periods milk-yield dropped, especially for the short intense pattern. Milk yields did not reach pre-peak levels after SCC-peaks. Fat-protein ratios were non-linearly related to SCC-peak rates. Both a lower and a higher fat/protein ratio at the start of lactation increased the risks of SCC-peaks. Across herds there is variation in the association between milk yield and SCC-peaks.
    Original languageEnglish
    Pages (from-to)291-299
    JournalLivestock Production Science
    Volume96
    Issue number2-3
    DOIs
    Publication statusPublished - 2005

    Keywords

    • dairy-cattle
    • clinical mastitis
    • genetic-parameters
    • production losses
    • health
    • yield
    • fertility
    • disease
    • cows
    • welfare

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