How to sell bull semen and embryos online

By the RanchOS Global editorial team · Updated

In short: make sure the bull meets your breed association's rules for AI sires, have semen collected and labeled so buyers can trust it, keep an exact straw count, and publish a listing with the pedigree, EPDs and performance data buyers pay for. If you sell to Mexico, check the export health certificate before you quote.

1. Make the bull eligible as an AI sire

Buyers want calves they can register, and associations set conditions before they accept calves sired by AI. Two examples:

  • American Angus Association (Rule 504): a bull that supplies semen for AI must have a DNA-marker type on file before his AI-sired calves can be registered. AI sires born on or after January 1, 2018 also need the full set of genetic condition tests the Association monitors.
  • American Simmental Association: the GGP-100K DNA panel is the minimum for AI sire approval, and sires must be tested for the genetic conditions they are at risk for.

Rules differ by breed and change over time, so confirm them with your association before you advertise semen.

2. Collect and label semen buyers can trust

Certified Semen Services (CSS), a subsidiary of the National Association of Animal Breeders, sets minimum standards for sire health testing, semen quality control and lab processes. A CSS-certified straw carries the collection date, the bull's registered name and number, the collection center's stud code and the NAAB code. Buyers check the straw, so tell them in your listing where and how the semen was collected.

3. Keep an exact inventory

Record every sale against the bull and subtract the straws from the tank they came out of, so the count you advertise is the count you have. The same goes for embryos, tracked by donor cow or by tank.

4. Build a listing that sells

Buyers often pay more for documented information. For each bull or donor, publish:

  • Registered name, registration number and a pedigree of at least three generations
  • Current EPDs and accuracy, with percentile ranks (see What EPDs are)
  • Performance records: birth, weaning and yearling weights, ultrasound carcass data, breeding soundness exam
  • Clear side-profile photos and, if you have them, video and progeny photos
  • Price per straw or per embryo, minimum order, available units, and how you ship
  • Any AI service certificate or paperwork the buyer will need to register calves

5. Selling to Mexico

Semen exported from the United States to Mexico needs a USDA APHIS health certificate that meets Mexico's requirements, and buyers usually need their own import paperwork. Check the current APHIS requirements for Mexico before you confirm a sale.

6. Where to list

Combine channels: your own website, breed association publications, sale catalogs and online marketplaces. Marketing works best when it is continuous, not a once-a-year push. On RanchOS Global each ranch gets a storefront with its sires, donor cows, semen and embryos, buyer inquiries in one place, and a listing in the ranch directory.

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