Equine Health

What vaccines are recommended for pregnant mares?

When it comes to the health of a pregnant mare, ensuring she receives the appropriate vaccinations is crucial not only for her well-being but also for the health of her foal. Vaccinations help protect against various infectious diseases that could potentially harm both the mare and her unborn foal.

What Vaccines Are Recommended for Pregnant Mares?

Vaccinating pregnant mares is an essential part of equine health management. The primary vaccines recommended for pregnant mares include Equine Herpesvirus (EHV-1), Tetanus, Eastern and Western Equine Encephalomyelitis (EEE/WEE), West Nile Virus (WNV), and Rabies. These vaccines help protect against diseases that could lead to abortion, neurological issues, or even death.

Why Is Vaccination Important for Pregnant Mares?

Vaccination plays a pivotal role in safeguarding both the mare and her foal from infectious diseases. It ensures that the mare’s immune system is primed to defend against pathogens, thereby reducing the risk of transmission to the foal. Additionally, the antibodies produced by the mare are transferred to the foal through colostrum, providing the newborn with essential immunity.

What Is the Vaccination Schedule for Pregnant Mares?

Adhering to a proper vaccination schedule is vital for optimal protection. Here is a typical vaccination timeline for pregnant mares:

  • Equine Herpesvirus (EHV-1): Administer at 5, 7, and 9 months of gestation to prevent abortion caused by the virus.
  • Tetanus, EEE/WEE, and West Nile Virus (WNV): Administer 4-6 weeks before foaling to boost antibody levels in colostrum.
  • Rabies: Administer annually, ideally before breeding or early in pregnancy.

What Are the Risks of Not Vaccinating Pregnant Mares?

Failure to vaccinate pregnant mares can lead to severe consequences, including:

  • Increased Risk of Abortion: EHV-1, in particular, is known to cause abortions if the mare is not vaccinated.
  • Neonatal Infections: Unvaccinated mares may not produce adequate antibodies, leaving foals vulnerable to infections.
  • Outbreaks of Contagious Diseases: Unvaccinated horses can become carriers, leading to outbreaks within herds.

How Do Vaccines Benefit the Newborn Foal?

Vaccines administered to the mare benefit the foal by:

  • Providing Passive Immunity: Antibodies passed through colostrum protect the foal during its early life.
  • Reducing Disease Incidence: A well-vaccinated mare is less likely to transmit infectious diseases to her foal.

People Also Ask

What Is Equine Herpesvirus (EHV-1)?

Equine Herpesvirus (EHV-1) is a contagious virus that can cause respiratory disease, neurological disorders, and abortion in pregnant mares. Vaccination during pregnancy is crucial to prevent these outcomes.

When Should Pregnant Mares Be Vaccinated Against Tetanus?

Pregnant mares should receive a tetanus booster 4-6 weeks before foaling. This timing ensures that the mare’s antibody levels are high, providing optimal protection to the foal through colostrum.

Can Pregnant Mares Be Vaccinated Against Rabies?

Yes, pregnant mares can and should be vaccinated against rabies. It is recommended to vaccinate before breeding or early in pregnancy to ensure the mare is protected throughout gestation.

What Are the Side Effects of Vaccinating Pregnant Mares?

Vaccination side effects in pregnant mares are generally mild and may include temporary swelling at the injection site or slight fever. Serious side effects are rare but should be monitored by a veterinarian.

How Does West Nile Virus Affect Pregnant Mares?

West Nile Virus (WNV) can cause neurological symptoms in horses, including pregnant mares. Vaccinating against WNV helps protect both the mare and her unborn foal from potential infection.

Conclusion

Ensuring that your pregnant mare is properly vaccinated is a critical component of equine health care. By adhering to a recommended vaccination schedule, you can protect both the mare and her foal from potentially devastating diseases. Consult with your veterinarian to tailor a vaccination plan that best suits the needs of your mare and her foal.

For more information on equine health management, consider exploring topics such as mare nutrition during pregnancy and foal care basics. Taking these steps will help ensure a healthy start for your foal and peace of mind for you as an owner.