Synchronization Protocols and Compliance for Beef Cattle Reproduction

By Ryan Sterry

Introduction

To help farmers, veterinarians, and industry professionals make informed decisions, the Beef Cattle Reproduction Task Force reviews and publishes research-based synchronization protocol recommendations. Separate protocols are published for cows and heifers, as well as for the use of sexed semen. When selecting protocols, farmers should consider their performance goals, labor, and handling facilities. Annually updated protocols are available at https://beefrepro.org/resources/. 

Estrus Synchronization Planner

An additional resource from the Beef Reproduction Task Force is the Estrus Synchronization Planner (available as a Microsoft Excel spreadsheet or a smartphone app) to assist farmers in establishing a daily program calendar for each task associated with using synchronization programs. The Estrus Synchronization Planner aims to: 

• Assist with planning and implementing synchronization systems 
• Minimize errors in the timing of injections, CIDR (controlled internal drug release) insertion, and removal, etc. 
• Plan labor needs 
• Provide analysis and comparison of the input costs of several synchronization systems

Synchronization Compliance

Farmers need to ensure protocols are followed to achieve success. When the wrong hormone is administered or the timing is incorrect, it can result in poorer ovulation responses or failed conceptions. If you discover a mistake, do not ignore it. Instead, work with your veterinarian and Artificial Insemination (AI) technician to determine if an alternative protocol could be used, or if it is best to restart the process.