Open Access Research article

Genetic effects and correlations between production and fertility traits and their dependency on the lactation-stage in Holstein Friesians

Eva M Strucken, Ralf H Bortfeldt, Jens Tetens, Georg Thaller and Gudrun A Brockmann*

BMC Genetics 2012, 13:108  doi:10.1186/1471-2156-13-108

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