Multiple Manufacturers OvSynch Protocol Products
By Multiple Manufacturers
Last reviewed: December 2025
Hormone products used in timed-AI synchronization protocols to manage dairy cow reproduction and improve pregnancy rates.
OvSynch and related timed-AI protocols use combinations of GnRH (gonadotropin-releasing hormone) and prostaglandin (PGF2α) to synchronize ovulation in dairy cattle, enabling artificial insemination at a predetermined time without the need for heat detection.
The basic OvSynch protocol involves GnRH injection (day 0), PGF2α injection (day 7), second GnRH (day 9 or 10), and timed-AI 12-16 hours after second GnRH. Variations include PreSynch-OvSynch, Double OvSynch, and others designed for different cow populations.
Products from multiple manufacturers (Zoetis, Merck, etc.) provide the hormones needed. Common brand names include Factrel/Fertagyl (GnRH) and Lutalyse/Estrumate (PGF2α). These are prescription products requiring veterinary involvement.
Key Features
- Timed AI: Breed without heat detection
- Synchronization: Group cows for efficient breeding
- Multiple Protocols: OvSynch, PreSynch, Double OvSynch options
- Proven Efficacy: Research-backed pregnancy rates
- Labor Efficiency: Reduce heat detection time
Advanced Features
- Resynchronization: Protocols for non-pregnant cows
- Activity Monitoring Integration: Combine with sensor data
- Protocol Variations: Customize for cow populations
- Fresh Cow Programs: Voluntary waiting period protocols
Ideal For
Farm Types: Dairy farms, Operations with AI programs
Competitive Advantages
What sets OvSynch Protocol Products apart from alternatives:
- Reduce labor for heat detection
- Improve reproductive efficiency
- Enable group breeding management
- Research-proven protocols
- Adaptable to operation needs
Pricing Information
Here is the pricing information for OvSynch Protocol Products:
Hormone products sold through veterinary distribution
Pricing Model: per-dose
Prescription required. Pricing varies by manufacturer and volume.
Pros & Considerations
- Proven synchronization for timed AI breeding
- Eliminates need for heat detection
- Enables batch breeding and labor efficiency
- Research-validated protocols with predictable results
- Multiple protocol variations for different situations
- Requires multiple injections and handling events
- Hormone costs add up for large herds
- Protocol compliance is critical for success
- Not all cows respond equally to synchronization
Implementation & Setup
How to implement OvSynch Protocol Products on your dairy operation:
Implementation Timeline: Protocol cycles: 10-14 days per round
Training & Support
Training and support options available for OvSynch Protocol Products:
Support Channels:
Evaluation Questions
Key questions to consider when evaluating OvSynch Protocol Products:
- What is your current pregnancy rate?
- How effective is your heat detection?
- What is your average days open?
- Do you have facilities for protocol injections?
- What is your veterinary involvement in reproduction?