DOI:
10.1055/s-00034912
Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere
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References
Heins BJ, Hansen LB, Seykora AJ.
Calving difficulty and stillbirths of pure Holsteins versus crossbreds of Holstein with Normande, Montbeliarde, and Scandinavian Red.
J Dairy Sci 2006;
89: 2805-2810.
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