At ReproVet Ireland, we offer a specialised Heifer Synchronisation Service designed to enhance the reproductive efficiency of your heifer group, particularly when using sexed semen or when heifers are located on an outside farm. Our approach aligns with the latest protocols recommended by Teagasc, ensuring optimal results.
Recommended Synchronisation Protocol for Sexed Semen
Implementing a structured synchronisation protocol is crucial for maximising conception rates with sexed semen. The recommended protocol is as follows:
| Day | Protocol Step |
|---|---|
| 0 | Scan heifer; insert Progesterone Device (e.g., CIDR or PRID) and administer GnRH injection |
| 5 | Administer Prostaglandin (PGF2α) injection |
| 6 | Administer Prostaglandin (PGF2α) injection & remove Progesterone Device |
| 8 | Perform Fixed-Time Artificial Insemination (FTAI) with sexed semen and administer a GnRH injection (timing of injection varies depending on conventional or sexed semen use) |
Note: This protocol is adapted from Teagasc guidelines.
ReproVet’s Top Tips for Successful Synchronisation
Based on our extensive experience, we recommend the following best practices to ensure the success of the heifer synchronisation protocol:
- Pre-Breeding Ultrasound Scan: Conduct an ultrasound scan to detect any reproductive abnormalities and give further advice.
- Target Weight Achievement: Ensure heifers have reached their target weights, as this correlates with improved fertility.
- Nutritional Management: Maintain heifers on a constant or rising plane of nutrition to support reproductive health.
- Mineral and Trace Element Supplementation: Provide appropriate supplements to address any deficiencies that could impact fertility.
- Dietary Consistency: Avoid sudden dietary changes, such as abrupt turnout to grass, in the weeks before and after insemination to prevent stress and digestive disturbances.
- Progesterone Device Management: Ensure the string or cord length of the progesterone device is correct to prevent heifers from removing them prematurely.
- Adherence to Protocol Timings: Strictly follow the recommended timings for each step of the protocol to maximize effectiveness.
- Semen Handling and Insemination: Ensure optimal semen handling and insemination conditions to maintain semen viability and improve conception rates.
How Much is Heifer Synchronisation for Fixed-Time AI?
The cost of Heifer Synchronisation for Fixed-Time AI ranges from €30-€40 per head, in addition to your insemination costs.
By integrating these practices, you can significantly enhance the success rates of heifer synchronisation and achieve better reproductive performance in your herd.