Ovulation, estrus and endocrine response after GnRH in early postpartum cows
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Human chorionic gonadotropin-induced alterations in ovarian follicular dynamics during the estrous cycle of heifers
Diaz, T., E. J.-P. Schmitt, R. L. de la Sota, M.-J. Thatcher, and W. W. Thatcher. 1998. Human chorionic gonadotropin-induced alterations in ovarian follicular dynamics during the estrous cycle of heifers. J. Anim. Sci. 76:1929-1936.
Prolongation of lifespan of the bovine corpus luteum by single injections of bovine luteinizing hormone
Donaldson, L. E., and W. Hansel. 1965. Prolongation of lifespan of the bovine corpus luteum by single injections of bovine luteinizing hormone. J. Dairy Sci. 48:903-904.
Effect of human chorionic gonadotropin administered early in the estrous cycle on ovulation and subsequent luteal function in cows
Fricke, P. M., L. P. Reynolds, and D. A. Redmer. 1993. Effect of human chorionic gonadotropin administered early in the estrous cycle on ovulation and subsequent luteal function in cows. J. Anim. Sci. 71:1242-1246.
Effects of a timed insemination following synchronization of ovulation using the Ovsynch or CO-Synch protocol in beef cows
Geary, T. W., and J. C. Whittier. 1998. Effects of a timed insemination following synchronization of ovulation using the Ovsynch or CO-Synch protocol in beef cows. Prof. Anim. Sci. 14:217-220.
Ovarian and estrous response of suckled beef cows to the Select Synch estrous synchronization protocol
Geary, T. W., E. R. Downing, J. E. Bruemmer, and J. C. Whittier. 2000. Ovarian and estrous response of suckled beef cows to the Select Synch estrous synchronization protocol. Prof. Anim. Sci. 16:1-5.
Calf removal improves conception rates to the Ovsynch and CO-Synch protocols
Geary, T. W., J. C. Whittier, D. M. Hallford, and M. D. MacNeil. 2001. Calf removal improves conception rates to the Ovsynch and CO-Synch protocols. J. Anim. Sci. 79:1-4.