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The Hay Pillow Blog

Enhancing Equine Health

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How & Where to Test Your Horse's Hay & Interpret Results

12/10/2020

6 Comments

 
By Monique Warren
Hay is the foundation of the majority of horse, donkey and mule diets - yet it rarely includes a nutritional analysis. Most of us would never consider purchasing any type of bagged feed or supplement without a label/nutritional analysis. Testing your hay is the only way to know the nutritional values - allowing you to compensate for deficiencies, imbalances (ratios) and possible excessive components.
​
A balanced core diet is necessary to achieve optimum health for your horse or herd. Read on to learn how to test your hay, where to send the sample and how to calculate NSCs using the results. Related links are provided to guide you through the process.
How to test your hay and where to send the samples
​Having your hay analyzed provides crucial information about levels of protein, minerals (including ratios), digestible and indigestible fiber and sugar and starch levels. The results reveal what may be deficient or excessive in the diet, including non-structural carbohydrates (NSCs). If you have a metabolically challenged horse, donkey or mule and are feeding untested hay, this simple process can also alleviate the task of soaking hay if the NSCs are 10% or below.

​Items You Will Need to Test Hay:

  • Hay Probe – You may be able to borrow one from a local extension office or friend. I purchased mine 12 years ago and it was one of the best investments for my horses I have made. The cost is $130.00 
  • Electric Drill – Some cordless drills may not be powerful enough to probe multiple bales
  • Clean Plastic Bucket
  • 2 Quart Size Ziploc® Baggies
Hay probe for collecting hay samples for testing
Hay probe & plunger to empty the contents.

​How to Take a Sample in 5 Steps

​1.  Wash a bucket with soap and water, rinse well and dry.  A clean plastic bucket (not metal) ensures a minimum amount of contaminates (dirt, dust or other feeds that the bucket has been used for) in the sample.

2.  Be prepared to collect a minimum of 12-16 samples throughout the load of hay. (You need enough hay to fill two quart size Ziplock bags.) Most probes will accommodate a sample from 2 bales of hay.​

IMPORTANT TIP:  Insert the probe at the end of the bale (not from the side) a minimum of 12”-15”.
hay probe testing hay
Insert the probe at the end of the bales.
​​3.  After you have cored 2 bales of hay, disconnect the probe from your drill and empty the contents into the clean plastic bucket. Repeat, collecting samples throughout the entire load until you have probed enough bales to accurately represent the entire load of hay. If you have over 100 bales, a good rule of thumb is to probe 15% of your hay.

4. When you have finished collecting your samples, wash and dry your hands and blend all samples together in the clean bucket.
Samples of hay in bucket; testing your hay
Blend the samples well with clean hands.
​5.  Prepare two Ziploc bags by writing your name, date and type of hay on the baggies using a Sharpie® permanent marker. It’s important to identify the sample should the Ziploc bag and order form become separated at the lab. You will mail one bag to the lab and keep one in case it is lost in the mail or the test results warrant a retest. This prevents you from having to repeat the process of collecting samples for a second time from the same load of hay.
Picture
It’s important to identify the sample should the bag and order form become separated at the lab.

​Where to Mail Your Sample

My preference is Equi-Analytical Labs as opposed to local dairy farm labs. Equi-Analytical offers a variety of affordable comprehensive analytical service packages. The tests are available to be reported in English (Mcal/lb.) as opposed to Metric (Mcal/kg).

The test I order is the (601) Equi-Tech – It includes moisture, dry matter, digestible energy, crude protein, estimated lysine, acid detergent fiber, neutral detergent fiber, lignin, Ethanol Soluble Carbohydrates (ESC), Water Soluble Carbohydrates (WSC), starch, non-fiber carbohydrates (NFC), fat, ash, calcium, phosphorus, magnesium, potassium, sodium, iron, zinc, copper, manganese, molybdenum. The cost is only $28.00.
​
For an additional $11.00, I add nitrates to the test. Find out why you should test for levels of nitrates,  how they deprive your horse of oxygen and how to convert/interpret your test results.

If you are testing your hay exclusively to assess NSC's the (600) Fast Track is extremely economical ($18.00) and includes moisture, dry matter, digestible energy, crude protein, acid detergent fiber, neutral detergent fiber, Ethanol Soluble Carbohydrates (ESC), Water Soluble Carbohydrates (WSC), starch, non-fiber carbohydrates (NFC), calcium, and phosphorus. This is a wise investment if you are currently soaking untested hay.

​Download the PDF, complete and print the online sample submission form. 

​In an envelope, include your sample submission form and hay sample and mail it to:

Equi-Analytical Laboratory Services
730 Warren Road
Ithaca, New York 14850
Hay testing sample and completed submission form

​Receiving Your Results

​Results are emailed once completed. I typically receive mine within 2-3 days once it has been delivered to the lab. Use the As Sampled column for as fed percentages, grams per pound and parts per million. 

 Interpreting Your Results

To interpret your analysis and balance the diet to your hay and supplements, your options are to:
  • Enroll in Dr. Kellon’s course online to learn how to balance the diet and formulate a custom mineral vitamin mix to compensate for deficiencies and achieve optimum ratios. I completed the class in 2008 and have formulated a custom mix balanced to my hay since then.* 
  • Consult with an equine nutritionist.
  • Subscribe to Feed XL, which formulates a horse's diet by determining if the NRC minimum nutritional requirements are being met. It is important to note that NRC minimum requirements are levels that borderline deficiency - hence the term minimum. These levels may not necessarily be optimum.
​
*Dr. Kellon's online course provides the most accurate comprehensive methods to balance the diet by providing optimum ratios of minerals in addition to NRC nutritional requirements.

How to Calculate NSCs (NonStructual Carbohydrates)

To calculate NSCs (nonstructural carbohydrates) once you receive the results:

Add the Starch % + ESC % = NSC%
or
Add the Starch % + WSC % = NSC%


​What Are the Definitions of Starch, ESC and WSC?

  • Starch - A polysaccharide found primarily in the grain or seed and/or root portions of plants.
  • ESC - Captures monosaccharaides, disaccharides, oligosaccharides, and a small fraction of fructans.
  • WSC - Captures all of the ESC components + the remaining fructans.
    ​
Why Do Vets and Nutritionists Quibble over What Percentages to Use As the NSC Sum? 

​​​“The nutritional relevancy of ESC vs WSC has not been researched due to the unavailability of fructan from grass in a pure form.  All the studies implicating fructan in laminitis, insulin response, and gut pH have been done on fructan sourced from broad leaf weeds.  It is very different, being shorter and more prone to rapid fermentation.  Hence the uncertainty of the effects of grass fructan on horses and whether ESC or WSC is more relevant. For sure, fructans from broad leaf weeds are bad.”  Katy Watts, Founder of Safergrass.org.  Learn more about Sugar Content of Pasture & Hay: Q & A with Katy Watts, Founder of Safergrass.org
​

Testing Your Hay is Easy & Affordable

Testing your hay is the best insurance policy to ensure you are meeting your horse's or herd's daily nutritional requirements. For as little as $18 - it’s affordable and practical.

Whether you have an entire year's supply of hay in your barn - or enough to last 3 months - it’s a great investment with the added benefit of alleviating the task of soaking hay if your herd is metabolically challenged and the NSC results are 10% or lower.

Don’t be intimidated by the process - it is quick and easy. By the second time you take samples, you’ll be a pro! 
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​Helpful How To Resources

  • Can Horses Eat More Hay Without Weight Gain? The Surprising Factors
  • ​Grass Hay vs Pellets, Cubes & Chopped Hay – Pros & Cons
  • Why Horses Need Salt & Why Salt Blocks Are Not Enough
  • Are You a Prisoner of Feeding? Here's How I Broke Free
  • ​6 Great Reasons to Feed Your Horse from Ground Level
  • 7 Slow Feed Dos and Dont's for Horses
  • Sugar Content of Pasture & Hay: Q & A with Katy Watts, Founder of Safergrass.org
  • 7 Easy Ways to Help Prevent Colic
  • Causes of Equine Ulcers – 7 Stress Factors & Solutions
  • Never Exercise Horses on an Empty Stomach...Ever
  • Why You Shouldn't Transport Horses On An Empty Stomach​

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About the Author:
Monique Warren invented the Hay Pillow® slow feeder and is the owner of Hay Pillow Inc.
​Warren has been an equine guardian for over forty years and slow-feed advocate for over 10 years. She contributes equine nutrition and digestive and hoof health articles to publications such as Equine Wellness, The Journal, The Naturally Healthy Horse,  Natural Horse Magazine, Nicker News, Horse Back Magazine, The Horse's Hoof, and  Miniature Horse World Magazine. Equine nutrition and horses feet are her passions. She resides in Southern California.
6 Comments
Angela
12/21/2021 12:13:42 pm

Can you explain why you prefer Equi-Analytical Labs instead of a dairy lab like Rock River Labs? I don’t work for a nutrition company but my background is dairy so I was just wondering.

Reply
Hay Pillow Inc
12/21/2021 12:40:50 pm

HI Angela,
The mineral results are quantified as mg per pound or mg per kilogram instead of %'s which have to be converted to milligrams to balance a diet.They offer a wider variety of comprehensive affordable packages geared towards all livestock guardians (not just dairy and milk production).

Reply
Carrie McVay link
7/18/2022 10:47:29 am

Hi. In my experience with Equi Labs, but the time the test results arrives the hay I am desiring to purchase is sold out. Is there perhaps a faster west coast analylitic lab available??? Thanks......

Reply
Hay Pillow Inc
7/20/2022 12:09:31 pm

Hi Carrie,
I think you are you referring to Equi-Analytical. I have never used another lab for reasons explained in the article. I have always received my results within a couple of days once the lab received my sample. My best suggestion is to core throughout the number of bales you wish to purchase and ask the grower or feed store to refrain from selling those until you receive your results. Once you receive the results you can let them know whether you want the hay or if they should sell it to someone else.

Reply
Molly Allen Niederberger link
8/18/2022 03:07:19 pm

I would like to have my hay tested.... but I live in Costa Rica. I am traveling to the US and can bring samples and mail them from my parents house? My question is is is this legal? Can I bring hay in a zip lock in my suitcase and then send it to you?

Reply
Hay Pillow Inc
8/18/2022 04:27:58 pm

My question, is this legal?
I can't answer that question! You might be able to ship the sample from Costa Rica to the lab in New York. Inquire at your local post office.

Can I bring hay in a zip lock in my suitcase and then send it to you?
You need to send it directly to the lab in New York. We included all relevant links within the article.

Reply



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    Hay Pillow Slow Feeder Inventor, Monique Warren.

    Monique
    Warren

    Monique Warren invented the Hay Pillow® slow feeder and is the owner of Hay Pillow Inc.
    ​
    Warren has been an equine guardian for over forty years and slow-feed advocate for over 10 years. She contributes articles on equine nutrition and digestive  health to publications such as Equine Wellness Magazine, The Naturally Healthy Horse, The Journal,  Natural Horse Magazine, Nicker News, Horse Back Magazine, The Horse's Hoof, and  Miniature Horse World Magazine. Equine nutrition and horses feet are her passions. She resides in Southern California.

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