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  • Prediction of daily milk fat and protein content using alternating (AT) recording scheme
    Klopčič, Marija, 1962- ...
    A possible introduction of AT recording scheme instead of the currently used reference A4 method was studied on twelve farms in Slovenia. During the usual production control, milk yields were ... recorded for the evening (PM) and morning (AM) milking. The correlations between AM, PM and daily measurements were calculated and the equations for the evaluation of daily content of milk fat and proteins were tested. All the observed phenotypic correlations were significant, ranging from 0.578 (PM -AM) for fat and 0.987 (DPC-PM) for protein content. Coeficient of determination (R[up]2) for fat content ranged between 78.83% and 81.35% for PM, and 69.26% and 73.73% for AM for the tested models. For protein content, R[up]2 ranged from 97.47% to 97.65% for PM and 95.48% to 95.48% to 95.74% for AM. The differences between models were small and significant. However, the complex models reduced bias in extreme values.
    Vir: Czech Journal of Animal Science. - ISSN 1212-1819 (Letn. 48, št. 11, 2003, str. 449-458)
    Vrsta gradiva - članek, sestavni del
    Leto - 2003
    Jezik - angleški
    COBISS.SI-ID - 1505672

vir: Czech Journal of Animal Science. - ISSN 1212-1819 (Letn. 48, št. 11, 2003, str. 449-458)
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