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  1. Reproductive performance and herd life of crossbred dairy cattle with different levels of European inheritance in Ethiopia por Negussie, E., Brannang, E., Rottmann, O.J.

    Publicado 2000
    “…Genetic and non genetic factors affecting herd life and reproductive performance traits such as age at first calving (AFC), number of services per conception (NSC), days open (DO), gestation length (GL), and calving interval (CI) were also assessed. …”
    Enlace del recurso
    Conference Paper

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