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Four experiments were conducted to investigate modifications to gonadotropin releasing hormone (GnRH)-based fixed-time artificial insemination (AI) protocols in beef cattle. In Experiment 1, the effect of reducing the interval from GnRH treatment to prostaglandin (PGF) was examined. Lactating beef...

Martínez, M. F.; Kastelic, J. P.; Adams, G. P.; Cook, B.; Olson, W. O.; Mapletoft, R. J.
Elsevier Science Inc., New York, USA
Theriogenology, 2002, 57, 3, pp 1049-1059