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Estimates of genetic parametres for protein yield of Polish Black-and-White cattle with multiple-lactation random regression test-day model



Estimates of genetic parametres for protein yield of Polish Black-and-White cattle with multiple-lactation random regression test-day model



Animal Science Papers and Reports 22(Supplement 2): 137-142



This study was carried out to estimate the covariance components for protein yield of Polish Black-and-White cattle using the single-trait-multiple-lactation random regression model (RRM) and Gibbs sampling method. The data analysed included 16 410 429 test-day (TD) records of cows that calved between 1995 and 2001. A total of 318 929 first, second and third lactation protein TD yield records from 127 randomly selected herds were used for the analysis.

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Accession: 004147391

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