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Abstract

Two experiments evaluated long-term progestin-based estrus-synchronization programs on the basis of potential for use in facilitating fixed-time AI in estrous cycling and prepubertal beef heifers. In Exp. 1, heifers were assigned to 1 of 2 treatments by age, BW, and estrous cyclicity status....

Author(s)
Mallory, D. A.; Wilson, D. J.; Busch, D. C.; Ellersieck, M. R.; Smith, M. F.; Patterson, D. J.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2010, 88, 11, pp 3568-3578
Abstract

Two experiments evaluated long-term controlled internal drug release (CIDR) insert-based protocols to synchronize estrus and compare differences in their potential ability to facilitate fixed-time artificial insemination (FTAI) in beef heifers. In Experiment 1 estrous cycling heifers (n=85) were...

Author(s)
Leitman, N. R.; Busch, D. C.; Mallory, D. A.; Wilson, D. J.; Ellersieck, M. R.; Smith, M. F.; Patterson, D. J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2009, 114, 4, pp 345-355