Mobile Semen Analysis
Analyze sperm quality where your animals are. Concentration, motility, and progressive motility — results in under five minutes, no lab required.

What Guessing Costs You
Most breeding operations rely on visual assessment — or skip semen analysis entirely. Manual motility estimates vary by 20–55% between practitioners assessing the same sample. Computer-assisted analysis reduces this below 12%. (Brito, 2016, Theriogenology)

For Breeders
Repeat inseminations, longer cycles, lost revenue. Farms that measure: 25% better efficiency, 10% higher conception.

For Veterinarians
Visual estimates vary up to 55% between practitioners. CASA replaces guesswork with shareable PDF and video reports.

For AI Technicians
Concentration, motility, progressive motility — invisible to the naked eye. Every unmeasured dose is a gamble.
From Sample to Results in Under 5 Minutes
Prepare
2–3 minutes
Collect sample using standard protocol. Dilute to the recommended concentration for your species. Load 5 µL into an Ongo Slide chamber.
Analyze
30–50 seconds
Connect Ongo Vision to your Android phone or Windows computer. The heated stage maintains species-specific temperature (37–38°C). Tap to start — automated CASA algorithms assess concentration, motility, and progressive motility.
Report
Immediate
Results display on screen instantly. Export as PDF report, CSV data, or MP4 video recording. Share with colleagues via email, cloud, or messaging apps.
What's Under the Hood

| Dimensions | 125 × 81 × 98 mm |
| Weight | 453 g |
| Magnification | 200× |
| Analysis time | 30–50 seconds (automated) |
| Total workflow | ~5 minutes including sample preparation |
| Heated stage | 37–38°C (Peltier element, species-dependent) |
| Analytical range | 10–100 million sperm/ml (dilution required for raw semen) |
| Battery | Li-ion 3.7V 3400mAh |
| Battery life | 1–2.5 hours continuous (typical session: 30–60 min for 5–10 analyses) |
| Charging | USB-C, 5V/1A |
| Platforms | Android (USB 3.0+, v9+), Windows |
| App languages | English, Spanish, French, German, Portuguese, Hungarian, Russian, Arabic, Chinese |
| Compliance | CE marked (LVD, EMC) |
| Consumables | Ongo Slides required (25 per box, 2 chambers per slide = 50 measurements) |
Analysis Parameters
Cell count · Concentration (M/ml) · Progressive motility (%) · Total motility (%) · Video recording
Data Export
CSV, PDF reports, MP4 video recordings. Share results with colleagues by email, cloud storage, or messaging apps.
Supported Species
Bull, Boar, Stallion, Ram, Dog, Goat, Deer, Poultry, Mouse, Rabbit, Fish.
Select the correct species in the app before each analysis — the software adjusts analysis algorithms and reference values per species.
Tested. Validated. Deployed.
50+
devices across 10+ countries
30,000+
measurements with Ongo Slides
Patented
EU + US patent granted until 2038
VC Backed
Backed by Bonitas Venture Capital
30 days
money-back guarantee
1 year
manufacturer warranty
“The portable Ongo analyzer showed reliable results comparable to laboratory CASA systems at the recommended concentration of 50 million sperm/ml.”
Buss et al., Reproduction in Domestic Animals, 2018. Research group of Christine Aurich, Vetmeduni Vienna.
Equine semen validation. 10 stallions, samples at 3 concentrations (100, 50, 25 million sperm/ml). The portable device showed strong agreement with standard laboratory CASA, with the best correspondence at the 50 M/ml concentration recommended for equine artificial insemination.
Read the full study →In Their Words
“The Ongo semen analyzer has become an indispensable part of our complex andrology checkup toolkit. With over 500 cases analyzed, it's proven its worth time and again.”
“It gives me a huge sense of security when sending semen to other vets. I send around 20 doses every week, and every time I share the Ongo Vision report with the receiving colleague. Many of them have thanked me for it.”
“Ongo Vision has transformed how we assess canine fertility. In a recent case with a prized Dogo Canario, we got comprehensive semen analysis results in minutes. The system's portability and precision are game-changers for our breeding consultations.”
See What the Device Sees
Stallion
Dr. Francisco Granate Fernandes · Veterinarian & Lusitano Breeder
Canine
Dr. Velimir Mikalački · Veterinary Surgeon Specialist
Bull
Internal QA sample
Does the Math Work for Your Operation?
The value of on-site analysis depends on your operation: how many tests you run per year, how long you currently wait for results, and what delays cost you.
Our calculator uses three inputs to estimate your annual return.
Calculate Your Savings →About Ongo Vision
What is portable CASA?
Computer-Assisted Sperm Analysis (CASA) is automated measurement of sperm concentration, motility, and kinematics. Portable CASA means the analysis happens on-site — at the farm, clinic, or breeding station — instead of sending samples to a laboratory.
What species does Ongo Vision support?
Ongo Vision supports 11 species: bull, boar, stallion, ram, buck (goat), dog, cat, rabbit, turkey, rooster, and fish. The app adjusts analysis algorithms and reference values per species automatically.
How accurate is mobile semen analysis?
Ongo Vision was independently validated at Vetmeduni Vienna (Buss et al., Reproduction in Domestic Animals, 2018) against laboratory reference methods across multiple sperm concentrations. The device measures concentration, total motility, and progressive motility with automated analysis in 30–50 seconds.
Do I need a laboratory to use Ongo Vision?
No. Ongo Vision is a self-contained portable device weighing 453 grams with a built-in heated stage, battery power, and USB-C connectivity. You need an Android device or Windows computer to run the analysis app.
What does Ongo Vision cost?
Contact us for pricing. Ongoing costs are limited to Ongo Slides (25 per box, 50 measurements). No subscriptions, no software license fees. Use the savings calculator to estimate your annual return.
Get Pricing
Tell us about your operation and we'll send a detailed quote within 1–2 business days.
Ongo Vision is a professional veterinary instrument — pricing is tailored to your location, species focus, and volume.
Common Questions
What species does Ongo Vision support?
Bull, Boar, Stallion, Ram, Dog, Goat, Deer, Poultry, Mouse, Rabbit, Fish. The app adjusts analysis algorithms and reference values per species — select the correct species before each analysis for accurate results.
Do I need to dilute the sample?
Yes. Ongo Vision's analytical range is 10–100 million sperm/ml. Raw semen typically exceeds this, so dilution is required. Recommended dilution ratios vary by species (e.g., Bull 1:10–1:50, Stallion 1:1–1:20). Full protocols are provided in the documentation.
Can I use slides from other manufacturers?
No. Ongo Vision requires Ongo Slides for accurate concentration and motility measurements. The 20-micron chamber depth is calibrated to the analysis algorithms. Each box of 25 slides provides 50 measurements.
What are the ongoing costs?
Ongo Slides are the only consumable. Each box of 25 slides provides 50 measurements. No subscriptions, no software license fees, no calibration services.
What's included in the package?
Ongo Vision device, USB 3.0 and OTG cables, starter pack of Ongo Slides, user manual, and protective carrying case. You also need an Android device (v9+, USB 3.0) or a Windows computer.
How does the heated stage work?
A built-in Peltier element maintains 37–38°C depending on species. Temperature is monitored and displayed in the app in real time. No external heating equipment needed.
Is there a training video?
Yes. Watch a 2-minute overview to see the workflow, or follow the complete 13-minute training guide for a full walkthrough.
Know Someone Who Could Benefit?
Our referral program pays you for every vet, breeder, or AI technician you introduce to Ongo Vision.
Learn About Referrals →Interested in distributing Ongo Vision? Learn about our distributor program.