The Dairy Cattle Reproduction Council (DCRC) kicks off its 2019 DCRC webinar series with “Evolution of Timed AI (artificial insemination) Protocols & Overview of the DCRC Reproductive Management Strategies Protocol Sheet for Dairy Cows.”
Presented by University of Wisconsin dairy science professor and extension specialist in dairy cattle reproduction Paul Fricke, this webinar will review DCRC’s updated dairy reproduction protocols. The one-hour webinar begins at 2 p.m. (Central) on Feb. 15.
While estrous synchronization protocols have helped enhance reproductive success on many dairy farms, there is no one “right way” to approach reproductive management, including “synch” programs, DCRC said.
“Many strategies can be implemented to achieve excellent 21-day pregnancy rates by increasing the AI service rate alone,” Fricke said. “Newer fertility programs increase both service rate and pregnancies per AI (P/AI).”
To register for this webinar, go to www.dcrcouncil.org/webinars and follow the prompts. As the webinar approaches, registrants will receive an email with information on how to log in and participate. DCRC members who cannot attend the live program may access the webinar at www.dcrcouncil.org.
During 2018, DCRC leaders reviewed and updated the council’s recommended list of estrous synchronization protocols. The updated protocols are based on the latest peer-reviewed research published in scientific journals. Presynch strategies that combine gonadotropin-releasing hormone (GnRH) and prostaglandin (PG) F2α increase P/AI by initiating ovulation in anovular cows and by increasing the proportion of cows that synchronize during an Ovsynch protocol. Including a second PGF2α treatment 24 hours after the first in a seven-day Ovsynch protocol increases luteal regression, which increases P/AI, particularly in multiparous cows, DCRC said.
Developing and optimizing fertility programs for first and Resynch timed AI remains an active research area, despite its 20-year history. DCRC’s current synchronization protocol recommendations can be found at http://www.dcrcouncil.org/protocols.
DCRC is focused on bringing together all sectors of the dairy industry — producers, consultants, academia and allied industry professionals — to worked toward improved reproductive performance. DCRC provides an unprecedented opportunity for all groups to work together to take dairy cattle reproduction to the next level.