作者: Martin Schulze , Sabine Buder , Karin Rüdiger , Martin Beyerbach , Dagmar Waberski
DOI: 10.1016/J.ANIREPROSCI.2014.06.008
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摘要: … of a broader spectrum of age (Kennedy and Wilkins, 1984, Smital, 2009, Wolf and Smital, 2009), the present study documents significant influences of age, breed, and season on the …