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Medical Diagnosis and Treatment

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while we build this page, some readers may be interested to see recommendations regarding infectious disease from the American Association of Equine Practitioners at the following link:

AAEP Guidelines for Control of Infectious Disease (and many other topics)

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Our Regular Schedule

Monday:

8:00 am-5:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-5:00 pm

Friday:

8:00 am-5:00 pm

Saturday:

9:00 am-2:00 pm

Sunday:

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Newsletter

Featured Articles

Read about interesting topics

  • What You Need to Know About Equine Nutrition

    Is your horse getting all of the nutrients it needs? ...

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  • Diseases That May Affect Your Horse

    Do you know which diseases can sicken your horse? ...

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  • How To Care For Your Horse When Temperatures Drop

    When winter weather strikes, these tips will keep your horse warm and comfortable. ...

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  • Coupling Equine Nutrition & Acupuncture

    Integrated medical care for horses has been shown to not only enhance their overall performance in competition, but benefit their everyday well being. According to the International Veterinary Acupuncture Association, acupuncture can be effective to both prevent illness and treat specific equine health ...

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  • Caring for Senior Horses

    With proactive veterinary care, horses can live well into their late 20s and early 30s. In fact, the average life expectancy for most horses is now between 28 and 33 years. Basic senior wellness care includes dental care, balanced nutrition, and hoof care. This care ensures horses remain healthy and ...

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  • Advances in Equine Breeding & Assisted Reproduction

    Assisted equine reproduction has opened up new possibilities in the equine sporting community for horses where this was once limited. With the help of your equine veterinary specialist you can determine if your horse is an ideal candidate for this process either to become artificially inseminated or ...

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  • Preventing Thrush in Horses

    Thrush is a bacterial infection, and one of the most common diseases, affecting horses’ hooves. You will likely know it when you see — and smell — it. The pungent, tar-like black discharge collects in the sulci, or grooves, along the sides of the frog, the triangular structure that covers about ...

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  • Select the Right Saddle

    The right saddle will make a significant difference for both you and your horse and ensure a safe, balanced and relaxing ride. Comfort is key; if the rear of the saddle is up after you cinch the saddle on your horse, or if the saddle wants to roll after you place it on, the saddle is not the correct ...

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  • Strategic Deworming for Equines

    If you are a long time horse owner, you may be familiar with traditional parasite control strategies. Traditionally, the most common parasite control approach called for horse owners to deworm their horse year round every six to eight weeks, rotating products. Alternatively, horse owners also could opt ...

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  • Why You Need to Keep Stalls Clean

    How often do you clean your horses’ stalls? Ideally, horse stalls should be cleaned every day and kept as clean as possible. Since horses often lie down in their stalls at night, this behavior means that if you are not keeping the stalls clean, horses could be lying in their own urine or manure – ...

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Testimonials

Testimonials

Read What Our Clients Say

  • "Kath, thank you so much for being Greyson's vet, your gentle hand, compassion and great skill made all the difference for my buddy."
    --Deirdre Dekking, Portland
  • "Dr. Mertens is a very friendly, knowledgeable equine veterinarian (and a friend to the rest of the farmyard, including the chickens!). Always up to date on the latest in equine health, and even though Mertens Mammals is a small clinic giving you the personable experience, Dr. Mertens also has equipment for more advanced diagnostics and procedures!"
    —Ari Gordon, Boring
  • "I have been a client of Mertens Mammals for 10 years. Kath (Dr. Mertens) is the most kind, thoughtful and caring Vet I have ever had for my animals. I have 3 horses: my Appy "Breeze" who turns 30 this year, my Paint " Rocket " 14 and my other Paint "Fergie " 3 are all under Kath's care. I also had a dog "Cowboy" who I lost to cancer last July. Kath took care of him also. Dr.Mertens came out on Mother's Day about 7 years ago to treat Breeze for a cut above her right eye. After a few weeks of recovery we were happy to not have a huge scar. Kath also spent 2 hours with me 3 years ago when Rocket had a small case of colic. (Thank God). I couldn't ask for a better person to take care of my girls. Kath always calls to check in on the patients. When people ask who I use for my veterinary needs for my horses, I'm always proud to refer them to Mertens Mammals. I am so thankful for an honest and caring Vet. Thank you, Kath!"
    --Michelle Schatz, Portland
  • "I got looking at Sassy’s records and it will be 6 years in July when you first met Sassy—I feel so fortunate that you became her vet and have looked after her all these years. You are such a wonderful and caring doc and I know you always have Sassy’s best interests at heart. I also know I can always rely on you to help me or Sassy when needed. Thanks for all you do for both of us—will keep you posted on Sassy.”"
    —Judy Becker, Eagle Creek
  • "My horse, Pester, would have lost her eye had it not been for the great care and dedication by Mertens Mammals. They are truly there for you any time you need them. I could go on and on. Kath Mertens has been so good to us!"
    --Troy and Wendy Mohr, Estacada
  • "She has always been there for us. She is forever in my thoughts as the best vet. She saved our hours old filly from certain death. She knew exactly what to do in an instant after just seconds in seeing her. We are forever in your debt...thank you!"
    Barbara T.
  • "Thank you Dr Mertens for such a thoughtful and careful job with our sweet Daisy the Donkey this morning! She is well on her way to health again after that abscess!"
    Suzi C.