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A new presynchronization system (Double-Ovsynch) increases fertility at first postpartum timed AI in lactating dairy cows
(ELSEVIER SCIENCE INC, 2008)
This study evaluated a novel presynchronization method, using Ovsynch prior to the Ovsynch-timed AI protocol (Double-Ovsynch) compared to Presynch-Ovsynch. Lactating Holstein (n = 337) cows, were assigned to two treatment ...