By Blake Jackson
The Beef Cattle Reproduction Task Force provides research-based recommendations for synchronization protocols to help farmers, veterinarians, and industry professionals make informed reproductive decisions. Separate protocols are available for cows, heifers, and the use of sexed semen.
When choosing a protocol, producers should consider their herd goals, labor availability, and handling facilities. Updated protocols can be accessed annually at beefrepro.org/resources.
A useful tool from the task force is the Estrus Synchronization Planner, this tool helps producers develop a daily calendar for tasks associated with synchronization programs.
It is designed to aid in planning and implementing systems, minimize timing errors for injections and CIDR insertions or removals, schedule labor, and compare costs of different synchronization strategies.
Compliance with synchronization protocols is essential for success. Mistimed injections or incorrect hormone administration can reduce ovulation rates or lead to failed pregnancies.
If an error occurs, work with a veterinarian or AI technician to determine whether an alternative protocol or restarting the program is best.
Key steps for protocol compliance include administering the correct hormone at the proper dose, on the correct day, and using the correct route and equipment. AI must also be performed at the right time. Visible cow identification, trained staff, safe handling equipment, and updated record-keeping all support accurate protocol execution.
Following label instructions and working with a licensed veterinarian is critical. High-concentration products and SQ administration routes reinforce the need for correct dosing.
Even small errors affect overall success. Missing 5-10% of doses in a 3- or 5-injection protocol can reduce compliance to 86-59%, highlighting the importance of precision at every step.
Safety is crucial. To prevent needlestick injuries, handle needles carefully, properly restrain animals, and follow correct injection techniques.
Certain hormones, such as prostaglandins and CIDRs, can pose risks if absorbed through skin, especially to women of child-bearing age, asthmatics, or those with respiratory conditions. Protective gloves and immediate washing after contact are essential for safe handling.
Photo Credit: gettyimages-baranozdemir
Categories: Wisconsin, Livestock, Beef Cattle