Proceedings, Applied Reproductive Strategies in Beef Cattle

نویسندگان

  • J. C. Dalton
  • S. Nadir
  • M. Noftsinger
  • J. Bame
  • R. G. Saacke
چکیده

Estrous synchronization programs provide an organized and efficient approach to administering artificial insemination (AI) and the improvement of reproductive performance. Synchronization programs facilitate AI by altering the length of the estrous cycle and (or) through manipulation of follicular growth, thereby making the occurrence of estrus more predictable or allowing for appointment breeding (timed AI) without detection of estrus. Although protocol compliance (accurate cow identification, appropriate drug dosages, correct time and day of treatment, and route of administration) is very important to the success of an estrous or ovulation synchronization program, many other factors are also important. These factors include: a) semen handling, number of sperm deposited, and the site of insemination, b) semen quality, i.e., “compensable” and “uncompensable” seminal traits, c) fertilization status and embryo quality, and d) the bull effect and time of AI.

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تاریخ انتشار 2005