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Two progestin-based protocols for oestrus synchronization in postpartum beef cows were compared following treatment administration on the basis of oestrous response, interval to and synchrony of oestrus, and pregnancy. Cows were assigned to one of the two treatment protocols by age, body condition...

Stegner, J. E.; Kojima, F. N.; Ellersieck, M. R.; Lucy, M. C.; Smith, M. F.; Patterson, D. J.
American Society of Animal Science, Savoy, USA
Journal of Animal Science, 2004, 82, 4, pp 1016-1021