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Our objective was to determine whether pregnancy rates in heat-stressed dairy cattle could be enhanced by timed embryo transfer of fresh (non-frozen) or frozen-thawed in vitro-derived embryos compared to timed insemination. Ovulation in Holstein cows was synchronized by a GnRH injection followed 7...

Ambrose, J. D.; Drost, M.; Monson, R. L.; Rutledge, J. J.; Leibfried-Rutledge, M. L.; Thatcher, M. J.; Kassa, T.; Binelli, M.; Hansen, P. J.; Chenoweth, P. J.; Thatcher, W. W.
Journal of Dairy Science, 1999, 82, 11, pp 2369-2376