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1 Comparison between two progesterone sources and two oestradiol formulations in a Heatsynch protocol for postpartum cycling dairy cows in pasture
Maarten F.A. Andringa, Frank J.C.M. Van Eerdenburg, Elisa Fernández, Sofía García, Daniel Cavestany
J Vet Sci.2013;14(2):161-166.   Published online 2013 June 21     DOI: http://dx.doi.org/10.4142/jvs.2013.14.2.161
      

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