Solving Chronic Endometritis in Mares: Why Activating Dormant Bacteria Is the Key to Successful Treatment
🧬 The Hidden Challenge: Dormant Bacteria Like Streptococcus zooepidemicus
In many mares, pathogenic bacteria such as Streptococcus zooepidemicus or E. coli lie dormant inside the uterus. They may not show up in swabs or cultures, and they may not trigger a strong immune response.
📉 That means:
- Standard diagnostic tests may appear “clean”
- Antibiotics may seem ineffective
- Inflammation and fluid retention persist
- Fertility drops dramatically
These dormant bacteria are inactive, not multiplying – which makes them resistant to antibiotics, since most antibiotics only work on bacteria that are actively growing.
✅ The Solution: Activate First, Then Treat
bActivate is not a probiotic. It’s a biological growth medium specifically designed to activate dormant bacteria – including Strep zoo.
Here’s the step-by-step process:
1. bActivate is administered intrauterine
It stimulates the reactivation of dormant bacteria, waking them up and pushing them into a metabolically active phase.
2. Within 24–48 hours, the bacteria begin to grow
This is a critical window, because now the pathogens are:
✔️ Detectable on culture
✔️ Biologically active
✔️ Susceptible to antibiotics
3. Targeted antibiotic therapy is then applied
At this point, treatment with penicillin or another targeted antibiotic can effectively eliminate the now-active infection.
💡 Why This Approach Works
By combining biological activation with targeted antibiotic treatment, you’re solving the problem from both ends:
🦠 bActivate exposes the hidden threat
💉 Antibiotics eliminate it effectively
This strategy is especially effective in:
- Mares with recurrent or subclinical endometritis
- Mares with a history of antibiotic failure
- Mares showing fluid retention but clean swabs
- Barren mares with no obvious reason for infertility
📈 Real-World Results
Breeders and veterinarians using this method report:
✔️ Improved diagnostic clarity
✔️ Better response to antibiotics
✔️ Reduced recurrence of infection
✔️ Higher conception rates in previously barren mares
🐴 Final Thoughts: Treat Smarter, Not Just Harder
If antibiotics alone haven’t worked, it’s not because they’re the wrong medicine — it might be because the bacteria you’re targeting aren’t awake.
bActivate makes them visible.
Antibiotics make them gone.
This dual-phase strategy represents a smarter, evidence-based solution to one of the most frustrating causes of mare infertility.
📞 Want to know how to integrate this protocol into your breeding program?
Get in touch with us today or speak to your veterinarian about using bActivate before antibiotic treatment.
What our clients say
Real results from veterinarians and breeders who have used bActivate on their most challenging problem mares.
“We incorporated bActivate into our standard reproductive work-up for problem mares at Hagyard. Out of 64 mares that had failed to conceive for at least 3 cycles, 83% became pregnant following bActivate activation and targeted antibiotic treatment.”
“We used bActivate on 19 of our most persistent problem mares — horses that had been barren for over a year despite every conventional treatment we tried. 89% of them got in foal. What really opened our eyes was how many had a hidden infection.”
“We have been using bActivate on several mares — all got pregnant and most of them in first try with frozen semen!”
“bActivate is an excellent tool that allows us as reproductive vets to do our job effectively. It is both a smart and cost-effective solution in the long run.”
“I used bActivate and after just one covering got a colt foal — after 3 years of hardship where the mare went in foal but never managed to produce a live foal. I cannot recommend bActivate enough.”
“Our 18-year-old mare had failed for five consecutive seasons. After bActivate she was confirmed strongly positive for Streptococcus — an infection standard testing had completely missed. She was treated, covered in September, and for the first time in five seasons there was no fluid present at ovulation. She is now 34 days in foal. This is the first time a pregnancy has not involved invasive flushing, excessive drugs and a battle to hold it.”