Stop Guessing.Start BreedingWith Precision.
BreederSync is the AI-powered operating system that tracks every cycle, interprets every progesterone test, and tells you exactly when to breed — so you never miss another window.
2,400+ breeders already on the waitlist
Join the movement transforming breeding programs
Breeding Success Rate
for BreederSync users
Breeders on Waitlist
and growing daily
Day Precision Tracking
from ovulation to whelp
Faster Prog Analysis
than manual charting
How Much Is Guesswork
Already Costing You?
Most breeders don't realize how much they're losing until they see what precision looks like. Here's what happens without a system:
Missed Breeding Windows
You tracked the heat, ran the tests, but the timing was off by 24 hours. Another cycle wasted. Another 6 months of waiting.
Cost: 6 months + lost litter revenueGuessing at Progesterone
You stare at the number on the lab report. Is 4.2 ng/mL the LH surge or ovulation? Should you breed now or wait? The uncertainty is paralyzing.
Cost: Anxiety + wrong timing decisionsForgotten Vaccines & Milestones
Between managing heats, pregnancies, and daily kennel life, a vaccine slips through. A deworming gets delayed. A pregnancy milestone goes unmonitored.
Cost: Puppy health risks + liabilitySpreadsheet Chaos
Sticky notes. Google Sheets. Notebook scribbles. Your breeding data is scattered across five different places, and none of them talk to each other.
Cost: Hours of wasted time every weekThere's a better way. And it starts right now.
When You Control the Data,
You Control the Outcome
Every feature in BreederSync was designed to answer one question: "What should I do next?" Stop relying on memory. Start relying on intelligence.
Heat Cycle Intelligence
Never wonder when the next cycle begins. BreederSync predicts heat windows with precision, sending you alerts at 150 and 180 days so you're always prepared — not scrambling.
Eliminate missed cycles foreverProgesterone Interpreter
Enter your test results and instantly receive expert-level interpretation. Know exactly whether to retest, prepare for breeding, or act now — all based on proven veterinary thresholds.
Your 24/7 progesterone expertBreeding Event Tracker
Log every breeding with stud details, method — Natural, Vaginal AI, TCI (Transcervical), or Surgical — dates, semen type, and notes. Build a complete breeding history across all methods.
All 4 breeding methods trackedPregnancy Milestone Engine
From the moment ovulation is confirmed, BreederSync calculates your due date and maps every milestone — ultrasound at Day 21, X-ray at Day 45, whelping window at Day 58-63.
63 days of guided confidenceHealth & Vaccination Hub
Preloaded vaccine and deworming schedules for puppies and adults. Track every dose, every product, every date — and receive automatic reminders before anything is due.
Zero missed vaccinationsAI Breeding Assistant
Ask questions, get instant answers. Your AI assistant knows your dogs' profiles, progesterone history, and breeding records — delivering personalized guidance in real time.
Like having a repro vet on callSmart Reminder System
Automated alerts for heat cycles, progesterone testing, breeding windows, pregnancy milestones, vaccines, and deworming — delivered via email, SMS, or in-app notifications.
Nothing slips through the cracksSecure Dog Profiles
Every dog gets a comprehensive profile with breed, weight, color, notes, and a complete timeline of events. Your entire kennel, organized and accessible from any device.
Your kennel, digitizedMaster Every Breeding Method
Whether you're a first-time breeder or a seasoned professional, understanding the differences between Natural, Vaginal AI, TCI, and Surgical insemination is critical to your program's success. BreederSync tracks all four — and helps you choose the right one every time.
Natural Breeding
Live CoverThe simplest and most traditional method of canine reproduction
Natural breeding, also known as live cover, is the act of a male and female dog mating without significant human intervention. The male mounts the female during her receptive period in the heat cycle, and the two form a copulatory tie that typically lasts 15 to 30 minutes. During this tie, semen is deposited directly into the vagina, and natural uterine contractions help transport sperm to the site of fertilization.
How It Works
The stud dog mounts the bitch and achieves intromission. The bulbus glandis swells inside the vagina, creating a "tie" that locks the pair together. This tie ensures complete semen delivery and triggers oxytocin release in the female, which stimulates uterine contractions to transport sperm through the cervix and into the uterine horns where fertilization occurs. Most experienced breeders allow 2-3 natural matings over the fertile window for maximum coverage.
Compatible Semen Types
Advantages
- Most natural and least invasive method
- Copulatory tie ensures complete semen delivery
- Natural oxytocin release aids sperm transport
- No specialized equipment or veterinary visit required
- Most cost-effective breeding method
- Allows natural mate selection behavior
Considerations
- Both dogs must be in the same location
- Size or temperament incompatibility can prevent mating
- Risk of injury to either dog during mating
- Potential for disease transmission (Brucellosis, etc.)
- Inexperienced or maiden dogs may refuse to mate
- Difficult to control exact timing of semen deposit
Best For
Compatible dogs that are local to each other, experienced stud dogs, and breeders who want the simplest approach. Always ensure both dogs have been health-tested and cleared for Brucellosis before any natural breeding.
BreederSync Pro Tip
Even with natural breeding, progesterone testing is critical. Knowing your bitch's exact ovulation date lets you time the live cover for peak fertility — turning a 70% success rate into 85%+. BreederSync tracks it all automatically.
Side-by-Side Comparison
| Factor | Natural | Vaginal AI | TCI | Surgical |
|---|---|---|---|---|
| Invasiveness | None | Minimal | Minimal | High |
| Anesthesia | No | No | No | Yes |
| Success Rate | 70-80% | 60-80% | 76-90% | 85-90% |
| Frozen Semen | N/A | Poor | Excellent | Excellent |
| Cost | $ | $$ | $$$ | $$$$ |
| Repeatable/Cycle | Yes | Yes | Yes | No |
| At-Home Option | Yes | Yes | No | No |
| Recovery Time | None | None | None | 10-14 days |
| Tract Visualization | No | No | Yes | Yes |
Understanding Semen Types
The type of semen you're working with determines which breeding method will give you the highest chance of success. Here's what every breeder needs to know.
Fresh Semen
Collected and used immediately. Highest sperm viability with 24-72 hour lifespan inside the reproductive tract.
Fresh-Chilled Semen
Collected, extended in chilling solution, cooled to 4°C, and shipped overnight. Viable for 24-48 hours after collection.
Frozen Semen
Stored in liquid nitrogen indefinitely. Thawed before use. Shortest lifespan (~12-24 hours) with lowest sperm count per dose (~100M motile).
BreederSync tracks every breeding method, every semen type, and every progesterone result — giving you the complete picture for every breeding decision.
Start Tracking Your BreedingsThis educational content is for informational purposes only and does not constitute veterinary medical advice. Always consult a licensed veterinarian or board-certified reproductive specialist before making breeding decisions.
From First Heat to Healthy Litter
in Four Simple Steps
Picture this: every cycle predicted, every test interpreted, every milestone anticipated. That's what happens when you let BreederSync handle the details.
Add Your Dogs
Create detailed profiles for every dog in your program. Breed, weight, color, notes — everything in one place. Your kennel becomes a living, breathing database.
Takes less than 2 minutes per dogTrack Every Cycle
Log heat dates and progesterone results. BreederSync instantly interprets your data, predicts the next cycle, and tells you exactly when to test next.
The system does the thinking for youBreed With Confidence
When progesterone hits the optimal range, you'll know immediately. Log breeding events, and BreederSync automatically begins pregnancy tracking with milestone reminders.
No more second-guessing timingManage the Journey
From ultrasound scheduling to whelping preparation, every pregnancy milestone is mapped and monitored. Vaccines, deworming, health records — all automated.
63 days of peace of mindEvery Missed Test Is a Missed Opportunity
Progesterone timing is the single most important factor in breeding success. BreederSync doesn't just log your numbers — it interprets them instantly, recommends your next action, and detects rapid rises before you even notice them.
Instant Progesterone Interpretation
Enter your value. Get your answer. Know your next move.
Retest in 3-4 days
Begin frequent testing
Breed in ~48 hours
Breed now + next day
Continue breeding
Window closing
Know Exactly When to Breed
for Every Method & Semen Type
The difference between a successful breeding and a missed cycle often comes down to a 24-hour window. This guide maps the optimal progesterone levels for each breeding method — so you never breed too early or too late.
The Progesterone Journey
Understanding how progesterone rises through the heat cycle is the foundation of every breeding decision. Each phase tells you exactly where you are — and what to do next.
Anestrus or early proestrus. Progesterone is at resting level.
Late proestrus. Progesterone beginning initial rise. Start testing every 2 days.
The LH surge has occurred. Ovulation will follow in approximately 48 hours. This is Day 0 of your breeding countdown.
Post-LH surge. Follicles are maturing and preparing to release eggs. Test daily to catch the ovulation rise.
Eggs are being released from the ovaries. They require 48–72 hours to mature before they can be fertilized.
Oocytes are maturing in the oviduct. Fresh semen breeding should be underway. This is the prime window for natural and vaginal AI.
Eggs are fully mature and fertilizable. Optimal window for TCI and surgical insemination with frozen or chilled semen.
Eggs are aging. Fertility is declining rapidly. Breeding at this stage carries higher risk of missed conception.
Optimal Timing by Breeding Method
Select your breeding method to see the exact progesterone windows, day-by-day timeline, and semen-specific recommendations.
Natural Breeding
Live Cover
Progesterone Windows by Semen Type
Fresh (direct deposit)
5 – 10 ng/mL
4 – 6 day survival in tract
Day-by-Day Breeding Timeline
Why Timing Matters for This Method
Fresh sperm survives 4–6 days in the reproductive tract, though some stud dogs' sperm may only last 1–2 days. This is why multiple matings 48 hours apart are recommended.
Critical Consideration
Even with natural breeding, knowing the exact ovulation date through progesterone testing transforms a 70% success rate into 85%+. Never rely on standing behavior alone.
BreederSync Pro Tip
Begin natural breedings when progesterone reaches 5 ng/mL and repeat every 48 hours through 15 ng/mL. The copulatory tie ensures complete semen delivery and triggers oxytocin release that aids sperm transport.
Sperm Survival Determines Your Window
The type of semen you use dictates how precisely you must time the breeding. Fresh semen gives you days of flexibility. Frozen semen gives you hours.
Fresh Semen
4 – 6 days
Fresh-Chilled
24 – 48 hours
Frozen Semen
~12 hours
Quick Reference: Optimal Progesterone by Method & Semen Type
| Method | Fresh Semen | Fresh-Chilled | Frozen Semen |
|---|---|---|---|
| Natural | 5 – 10 | N/A | N/A |
| Vaginal AI | 5 – 10 | 10 – 20 | Not Recommended |
| TCI | 5 – 10 | 10 – 20 | 20 – 30 |
| Surgical AI | Rarely Used | 15 – 25 | 20 – 30 |
All values in ng/mL. Based on IDEXX Catalyst Progesterone clinical guidelines and AKC reproductive specialist recommendations.
This progesterone timing guide is for educational purposes only and does not replace veterinary medical advice. Progesterone values can vary between assay methods (IDEXX, miniVIDAS, in-house kits). Always work with a licensed reproductive veterinarian to interpret results for your specific bitch and breeding program.
BreederSync interprets every progesterone value instantly and tells you exactly when to breed — for every method and every semen type.
Start Timing With PrecisionImagine Opening Your Dashboard and Knowing Everything
Upcoming heats, active pregnancies, progesterone trends, overdue vaccines — every critical data point, one glance. This is what control feels like.
Real-Time Alerts
Color-coded urgency system — red for urgent, gold for upcoming, green for completed. You'll always know what needs attention first.
Visual Timelines
See every dog's journey mapped on an intuitive timeline. Heat cycles, breeding events, pregnancy milestones — all visualized.
One-Tap Logging
Log progesterone results, breeding events, and health records in seconds. Minimal clicks, maximum data capture.
Like Having a Repro Vet
in Your Pocket
Your AI assistant doesn't just answer questions — it knows your dogs. It has access to every profile, every progesterone result, every breeding record. When you ask "Should I breed today?", it gives you an answer based on your actual data.
Interprets Progesterone
Paste your numbers, get instant expert analysis with recommended next steps.
Recommends Breeding Timing
Based on your dog's unique data history, not generic charts.
Answers Breeding Questions
From puppy care to reproductive health — context-aware answers in seconds.
This is not veterinary medical advice. Please consult a licensed veterinarian for medical concerns.
Experience AI-Powered BreedingBreeders Who Switched to BreederSync Never Look Back
"I used to miss breeding windows at least twice a year. Since using BreederSync's progesterone tracker, I haven't missed a single one. My success rate went from 60% to over 90%."
Sarah Mitchell
French Bulldog Breeder, Texas
"The AI assistant is a game-changer. I asked it about my girl's progesterone trend at 11pm and got an instant, data-backed recommendation. It's like having a repro specialist on speed dial."
Marcus Johnson
American Bully Breeder, Georgia
"Managing 12 dogs used to mean spreadsheets, sticky notes, and constant anxiety about missed vaccines. Now everything is in one place, automated, and I actually sleep at night."
Jennifer Park
Golden Retriever Breeder, California
What's One Missed Breeding Really Costing You?
A single missed cycle can cost thousands in lost potential. BreederSync pays for itself with the very first litter you don't miss.
Starter
Perfect for breeders just getting started with one or two dogs. Everything you need to stop guessing.
- Up to 3 dog profiles
- Heat cycle tracking
- Basic progesterone logging
- Pregnancy countdown
- Email reminders
Professional
For serious breeders who demand precision and never want to miss a window.
- Unlimited dog profiles
- Advanced progesterone interpreter
- AI breeding assistant
- Smart trend analysis
- SMS + email + in-app alerts
- Full health & vaccine tracking
- Breeding event history
- Priority support
Kennel
For established kennels managing multiple breeding programs simultaneously.
- Everything in Professional
- Multi-user access
- Kennel-wide analytics
- Custom reminder schedules
- API access
- Dedicated account manager
- White-label reports
30-day money-back guarantee. No contracts. Cancel anytime.
You have nothing to lose — except another breeding window.
Everything You Need to Know
Your Next Litter Depends on What You Do Right Now
Every day without BreederSync is another day of guessing, another cycle at risk, another opportunity slipping away. Join 2,400+ breeders who decided to take control.