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Sirius Canine Fertility
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    • Semen Collection & Freezing
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Established 2000

Your Trusted Partner
in Canine Reproduction

Located in Grass Valley, California, we are dedicated to providing unparalleled services in canine reproduction, semen freezing, and export.

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60+ ★★★★★ Five-star reviews from happy breeders.
Sirius Canine Fertility - Canine Reproduction Services

Exporting and Importing Worldwide

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Sirius Puppy
0+
Years as the First Mobile Semen Bank
0%
TCI Success Rate (With Protocol)
0%
TCI success with fresh semen (and sirius timing protocol)
0+
Years of Pure RVT & Breeding Experience
Why Us

Why Choose Sirius?

Because we care, and it shows. This isn't just a job for us—it's our passion, our hobby, and our life.

Decades of Experience

Our staff understands how much time and effort you put into breeding. With 20+ years of judging, training, and veterinary experience, we draw from a massive pool of knowledge to guide your program.

Available When Nature Calls

Mother Nature doesn’t take weekends off, and neither do we. We have highly trained technicians on call every weekend and holiday for your critical, time-sensitive breeding needs.

By Your Side, Every Step

We treat every case as if it were our own dog. We never take them to a back room—you stay right by their side during procedures to keep them calm and keep you fully informed.

State-of-the-Art Technology

Our service and lab equipment are world-class. We constantly upgrade to the cutting edge of canine reproduction technology to offer you services and success rates simply not available elsewhere.

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Services

Comprehensive Canine Reproductive Services

As a full service mobile laboratory, Sirius Canine Fertility, Inc offers the following convenient services:

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Semen Collection & Freezing

Professional collection, comprehensive evaluation, and long-term freezing of canine semen at our clinic or mobile lab.

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Exports & Imports

Comprehensive international shipping logistics, documentation, and regulatory compliance for global semen transfers.

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Transcervical Insemination

Advanced, non-surgical artificial insemination utilizing endoscopic technology to maximize conception rates.

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Progesterone Testing

Fast and accurate in-house hormone testing to pinpoint the exact, optimal breeding window for your female.

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Board and Breed

A convenient drop-off service where our skilled team manages all testing, timing, and breeding procedures.

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Testicular Harvest

Urgent post-castration or post-mortem epididymal sperm extraction and freezing to preserve valuable genetics.

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Supplies & Shipping Kits

High-quality, professional-grade chilled semen shipping kits and breeding supplies available for direct purchase.

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Brucella Testing

Essential in-house screening for Canine Brucellosis required prior to all standard breeding services.

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Surgical Implant Referrals

Coordinated referrals to our network of trusted veterinary surgeons for specialized surgical inseminations.

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Export Blood Work Panels

Specialized veterinary laboratory testing required to meet the strict import requirements of foreign countries.

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Stud Dog Database

Put your stud in front of thousands of active breeders and buyers. List your dog in our directory, gain exposure, and get featured in our high-traffic network.

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Weekend On Call Assistance

Mother Nature doesn't follow standard business hours. Rely on our dedicated on-call technicians to support your time-sensitive emergency weekend breeding needs.

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Our Experts

Meet the Sirius Team

Our dedicated team of professionals has decades of combined experience in canine reproduction, veterinary care, and export services.

Bridgett Higginbotham, RVT
RVT, Owner, Founder, and Export Queen

Bridgett Higginbotham, RVT

Licensed Veterinary Technician since 1987, founder of Sirius Canine Fertility, and world-renowned export department head.

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Rebecca Hahn, DVM
Veterinarian & Breeder

Rebecca Hahn, DVM

Graduate of Purdue University Veterinary School (1982), former owner of Brunswick Veterinary Clinic, and dedicated Entlebucher Mountain Dog breeder.

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Arabelle Walik
Office Manager & Lab Technician

Arabelle Walik

Arabelle is a master of the transcervical insemination technique (TCI). She oversees our lab and European exports, doing her best to make all processes smooth and straightforward.

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Sarah Bridges
Veterinary Assistant

Sarah Bridges

With over 17 years in the veterinary field, Sarah is calm, sympathetic, and thorough. She utilizes her extensive education on canine body language to treat every dog gracefully.

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Aryanna Wahl
Reception

Aryanna Wahl

Growing up around reproduction and farm life inspired Aryanna's passion for animals. She loves getting to know our clients and assisting their individual breeding programs.

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Frequently Asked Questions

Everything you need to know about our breeding services, semen freezing, and facilities.

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How long does frozen semen keep in storage?

The technology that created this canine semen freezing technique has been around for 36 years and we are using semen that has been stored that long and getting puppies!!

We are assuming the semen will be good for an indefinite period of time as long as it is kept at a constant temperature in liquid nitrogen.

What if the electricity goes out, what happens to the semen?

The storage tanks are completely self-contained using liquid nitrogen. No electricity is required so power failures are not a problem!!

Why should I choose Sirius Canine Fertility?

Our entire staff at Sirius Canine Fertility, Inc take this very seriously and the level of passion they have in their work really shows! The technical staff is completely dedicated to ensuring your breedings are done according to your bitch’s schedule, not our schedule or convenience.

Our techs spend many hours educating clients to make sure the best possible procedures are done for that particular bitch. Our success rate with Transcervical Insemination done in our office is over 85%. With services like one hour progesterone testing, we can pinpoint ovulation timing even better.

We believe in always staying on the cutting edge of technology. Our equipment is state of the art, from our Sperm Vision CASA equipment, to our TCI machines, to the one hour progesterone assay testing equipment.

What are the differences between fresh, fresh chilled, and frozen semen?

Fresh semen is when you have the dog and bitch available, the collection is done from the male and immediately inseminated into the bitch.

Fresh chilled semen is collected and added to our media and shipped to the bitch owner in one of our Sirius Shippers. The semen when mixed with our media lives for several days. I (Bridgett) preformed testing on one of my own dog’s semen and still had motility after 2 weeks!!

Frozen semen generally lives about 8-12 hours on average after thawing. Frozen semen can only be used through transcervical or surgical inseminations. Fresh or fresh chilled semen can be implanted with either vaginal inseminations, surgical inseminations or transcervical procedures.

What are your success rates using frozen semen at your facility?

Outstanding! We offer in-house, Transcervical inseminations for either fresh, fresh chilled, or frozen semen. Our success rates for these are over 85%, as good, if not better than natural breedings!!

We do not thaw your frozen semen prior to passing the catheter during the TCI procedure, as once thawed, semen cannot be refrozen. This way, we can ensure that the procedure can be done on your bitch prior to thawing semen, so if for any reason your bitch cannot be catheterized, your semen is not wasted.

My bitch is flagging and her smears are cornified, do I still need progesterone testing?

If you want the best chance of success, then yes, progesterone testing is necessary. Behaviors like “flagging” and vaginal cytology indicating cornification are estrogen induced. Ovulation is progesterone induced. These should be in sync with each other, but we are finding over and over again, they are not.

If you are using frozen semen, progesterone testing must be done to ensure the semen, which only lives 8-12 hours, is implanted at the correct time.

My vet uses an “in-house” progesterone test, is this ok?

This depends on the type of in-house test your vet utilizes. If they are using a color change test, I would recommend against it for the most accurate timing.

If your vet has the same equipment as we do, in-house, quantitative analyzers for progesterone assay (most do not) then this type of in-house testing would be recommended. When your vet or breeder friends are referring to “in-house” testing, make sure of which type they are talking about.

I live in Canada, my progesterone numbers are different. How do I interpret them?

The progesterone levels here are recorded in nanograms and the testing done in Canada is recorded in nanomoles so it is not comparing apples to apples.

The nanogram is multiplied by 3.14 to compare to the Canadian system. Generally we say a bitch ovulated around 5.0ng on our system, it would be around 16nmol on the Canadian system. Not all labs report in Nanomoles, so be sure to check which one your results are reported in.

What procedure is best for using frozen semen on my bitch?

This can vary depending on age of bitch, reproductive history, etc. but generally speaking we recommend the Transcervical insemination. We prefer TCI to surgical because there is no surgery, no recovery time and we feel MUCH less stress to the bitch.

The two biggest factors affecting your success with TCI are accurate progesterone timing & the experience of the person doing the TCI. Have you confirmed ovulation? You want to make sure someone doing your TCI is very experienced with both the procedure, and correct timing.

My dog has an enlarged prostate, is neutering the only option?

No! We have some treatment options we can share with your veterinarian that can treat prostatitis. Generally Ovaban or Proscar are used for treatment, and we have seen outstanding results.

Of course, if the dog is not being shown and is no longer being used for breeding, it is the healthiest option to neuter him, but these treatments work well when neutering is not an option.

What is the best age to collect my dog for freezing semen?

The best age is generally 2-5 years of age, although I feel the younger the better! Semen from a younger dog is stronger and survives the freezing process better.

Some breeds we collect as young as 1 year of age and have great results! In some occasions, dogs that are working or on the show circuit need to be done after they are retired or on a break.

What is the optimum progesterone level at the time of breeding?

The breeding window is NOT determined by a particular number, rather by the date of ovulation, which is confirmed through progesterone testing. Ovulation is confirmed by observing a 3 or more ng jump, in a 24 hour period.

When planning a TCI, your timing is determined by the type of semen being used. For frozen semen, we recommend two TCI procedures, done between days 3-5 post ovulation. If fresh or chilled semen is being used, we recommend breeding days 2 and 4 post ovulation.

I have a bitch I want to breed and need a stud dog. Do you have a catalog I can choose one from?

Yes! We now offer a comprehensive Stud Directory where breeders can list their stud dogs, and those looking to breed can find an available match. You can easily browse our directory of elite genetic pedigrees to find the perfect fit for your program.

Based on 60+ reviews

What Our Clients Say

Real stories from breeders and dog owners who trust Sirius Canine Fertility.

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"The last two times frozen semen was used from my boys the breeding resulted in a litter of 11 and a litter of 10 – large for any Soft Coated Wheaten Terrier litter. You do a wonderful job in collecting, storage (one batch was 10 years old) and coordinating shipping. I just wanted to let you know how much confidence I have in you."
RA
Roni Andrews
Wheaten Terrier Breeder
"Thank you for your service to our sport. Best in the business. Y'all have magic hands…."
SB
Storm Britten Ilouno
"We are so thankful for the work and care these guys give. We did a fresh TCI with them 12-19-14 and on 2-15-15 had 10 healthy Goldendoodles ❤️ Thank you for your service and knowledge."
RG
Rollins Goldendoodles
Marysville, CA
"I've been a client for a few years now and let me tell you, THEY. ARE. AMAZING! They are so accommodating and personable, they explain everything and answer all of your questions. You can definitely tell that they CARE about their clients and the safety of their dogs."
V
Vanessa
Gridley, CA
"I am so blessed to have Sirius Canine Fertility so close by. They are always helpful and are so knowledgeable and willing to go the extra mile for their clients."
BS
Barbara Schwab
"You and everyone else in your company with whom I have had the pleasure to do business with simply rock 🙂 Fantastic service. Siriusly!!!"
JJ
Jussi Jalasjoki
"My Champion Boxer girl's time came 1 month sooner than anticipated and my local clinic couldn't accommodate me. Sirius said come on over! The folks were super nice, professional yet caring. So many top breeders I highly respect recommended them. I can see why!"
C
Christina
Hayward, CA
"As a first time frozen semen user, I had many questions. From my initial phone call I knew I was dealing with the right people. Everything worked out perfectly — a healthy litter of five females and three males. If anyone is considering frozen semen and the TCI procedure, look no further than Sirius Canine Fertility."
D
Dave
Sonora, CA
"Very professional, caring staff. Always good communication and treat my dog well ❤️"
L
Lesli
Bangor, CA
"Staff are fantastic to work with. We have had a great experience, staff answered all of my questions and were great with our girl. Highly recommend this place for breeders!"
M
Marianne
Carson City, NV
"Sirius Canine has an incredibly friendly and knowledgeable staff. They have been very successfully walking us through the process of artificial insemination. So glad we found them."
J
Jenna
Benecia, CA
"They're a really top notch service, I've heard of people coming from absurd distances just to work with them. The staff is very knowledgeable — not just vet techs trying to get paid. I'm always very skeptical, however I felt very comfortable by my 3rd visit. I highly recommend them."
L
Lynn
Cottonwood, CA
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Blog

Site Resources and Blog

Expert insights, breeding guides, and industry updates from our reproductive team.

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Post title Blog

Why 5 is NOT the Magic Number

Sirius Canine Fertility Editor Sirius Canine Fertility Editor
Post title Blog

Optimizing Semen Quality in Dogs: What Every Breeder Needs t...

Arabelle Walik Arabelle Walik
Post title Blog

The 5 Elements in TCVM: What Type Is Your Dog?

Sirius Canine Fertility Editor Sirius Canine Fertility Editor

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Happy, healthy, stress-free dogs make happy, healthy, stress-free puppies.

That's the Sirius Canine Fertility promise.

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Office Location

12444 Nevada City Hwy
Grass Valley, CA 95945

Office: 530.273.9123
Fax: 530.273.9128

Mailing Address

P.O. Box 741
Cedar Ridge, CA 95924

(All mail must go to P.O. Box, not physical address)

Business Hours

Mon, Tue, Thu, Fri: 9am - 5pm

Wed: 9am - 1pm

Closed daily 1:00pm - 1:30pm for lunch

Closed weekends

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