calving interval
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An analysis of CYP19, CYP21 and ER genotypes in Polish Holstein-Friesian cows with regard to the selected reproductive traits
Iwona Szatkowska, Wilhelm Grzesiak, Magdalena Jędrzejczak, Andrzej Dybus, Daniel Zaborski, Dorota Jankowiak
2011, Vol. 80, Issue 1, pp. 65-71
