Hoary Alyssum in Hay – Ask the Expert

Question
Hoary Alyssum in Hay

We suspect we have hoary alyssum in our hay. We’ve noticed our horses are stocked-up, but we are not sure if its from hoary alyssum or because all of the snow is limiting their ability to walk around. Can you confirm if this is hoary alyssym in our hay?

Answer

Yes, hoary alyssum is in this hay.

Circled in red you can see one of the seed heads in the photo.

 Small, oval seed pods that become translucent as they mature showing the small brown to black colored seeds inside the pods identifies this as Hoary Alyssum.

We recommend you immediately stop feeding the hoary alyssum-infested hay. Hoary alyssum only affects horses, so the hay can be fed to cattle, sheep and goats.

Horses react differently to hoary alyssum, but signs of toxicity are usually seen 12 to 24 hours after a horse ingests the plant.

Common signs include swelling and fluid build-up in the lower legs (e.g. “stocking-up”), a fever of 103F or higher, stiff joints, and an unwillingness to move. More severe cases can progress to laminitis.

Mild stocking up is most common; however, more severe signs can occur in horses eating hay with more hoary alyssum or when ingesting the hoary alyssum-infested hay for longer periods of time.

Clinical signs normally go away with supportive treatment 2 to 4 days after removing the infested hay. Horses with laminitis may take more time to recover.

At Nutrena, we believe proper nutrition plays the biggest role for a lifetime of health and happiness for every horse. That’s why Nutrena horse feeds are specifically formulated for every life stage and activity level. 
Ready to ensure your horse is getting the optimum nutrition at feeding time, every time? Find the perfect feed formulated specifically for horse’s needs with our Feed Selector Tool.
Feed Selector tool

Ask the Expert: Large Round-Bales


Different sized hay bales representing the benefits of large round-balesQuestion:
We are having a hard time finding small-square bales and as a results, are going to start feeding round-bales. How many small square-bales are in a round-bale?

Answer: It depends on the weight of both the large and small-square bales. For example, if the round-bale weighs 1,000 pounds, then 20, 50-pound small-square bales would be equivalent to 1 round-bale. If the large round-bale weighs 1,200 pounds and the small-square bales weigh 40 pounds, then 30 small-square bales would be equivalent to 1 round-bale. It important to know the weight of hay bales both for feeding and economic purposes.
Keeping in mind that storage and feeding losses associated with round bales are typically higher compared to small square bales. Especially when storing bales outside and feeding without a hay feeder.

At Nutrena, we believe proper nutrition plays the biggest role for a lifetime of health and happiness for every horse. Nutrena formulates horse feeds specifically for every life stage and activity level, ensuring optimal nutrition.
 
Ready to ensure your horse is getting the optimum nutrition at feeding time, every time? Find the perfect feed formulated specifically for horse’s needs with our Feed Selector Tool.Feed Selector tool

This article is reprinted with permission from Krishona Martinson, PhD, University of Minnesota. 

Tips on Growing and Selling Horse Hay

Five horse hay growers in Minnesota share their tips on growing and selling horse hay, including how they monitor moisture throughout the baling process, how they work around the weather, what types of forages they grow and the investment it takes to grow and harvest hay.

The farmers also share their advice for individuals wanting to grow and/or sell horse hay and their greatest challenges associated with growing and selling horse hay.

This video was shared with permission from Krishona Martinson, University of Minnesota. This and other horse nutrition articles can be found at http://www.extension.umn.edu/agriculture/horse/nutrition/.

How To Identify Moldy Hay – Ask the Expert: Testing for Moldy Hay

Our friends at the University of Minnesota Extension have helped to answer the question, how do you know if your hay is moldy? Equine expert Krishona Martinson, PhD, offers some tips below when it comes to hay testing.

Question:  I recently purchased some hay. I thought it was good quality, but I think the hay might be a little moldy. Can I test my hay for mold?

Response: Most forage testing laboratories can test hay (and other feed stuffs) for different types and amounts of molds. The costs average $40 and takes about one week to complete. The sample is collected and submitted similar to a hay analysis for nutrient value.

Watch a YouTube video on how to collect a hay sample.

All hay will have some mold; no sample will have zero mold. Mold spore counts are given in colony forming units per gram (cfu/g). Hay with less than 500,000 cfu/g of mold is considered good quality.

Hay with 500,00 to 1 million cfu/g is relatively safe, while hay with over 1 million cfu/g of mold should not be fed to horses due to the risk of respiratory issues. Most people can start to detect mold around 500,000 cfu/g.

If your hay is between 500,000 and 1 million cfu/g of mold, use precaution by pulling flakes apart before feeding, feeding outside or in a well-ventilated area, using a hay net to restrict the horses ability to bury their nose into the hay, and wetting the hay to reduce the amount of mold spores inhaled.

Alternatively, you could look for a better quality hay or ask your hay supplier to exchange the hay for bales with a lower mold count.

This article is reprinted with permission from Krishona Martinson, University of Minnesota. This and other horse nutrition articles can be found at http://www.extension.umn.edu/agriculture/horse/nutrition/.

Buying Hay, What Questions Should You be Asking?

hayOur friends at the University of Minnesota Extension have created a great guide to questions you should be asking when buying hay. Equine expert Krishona Martinson, PhD, offers some helpful suggestions below:

Q: What questions should I ask when buying horse hay?
A: Here are some questions horse owners should ask when purchasing hay:

  1. Have you sold to horse owners before or do you specialize in horse hay?
  2. What is the average weight of the bales? This is very important if buying hay by the bale.
  3. How mature is the hay? Maturity is the main driver of forage quality.
  4. What species are present in the hay? Legumes and grasses have different nutrient values.
  5. Where was the hay harvested? Rule out ditch hay.
  6. Was the hay rained on? Rained on hay is a good choice for horses with metabolic problems; it tends to be lower in nonstructural carbohydrates.
  7. Was the hay stored inside or under cover after baling? Hay stored inside or under cover has less storage loss.
  8. Was the hay field fertilized and/or sprayed for weeds? Show good management and likely a better quality product.
  9. What are the payment options?
  10. Is delivery available and if so, what is the cost?
  11. What is the price? Is there a price break for volume or cash?
  12. Is assistance available with onsite handling and stacking of hay, and if so, at what cost?
  13. How much hay do you have/bale each year? Helps ensure a consistent supply of hay.

This article is reprinted with permission from Krishona Martinson, University of Minnesota. This and other horse nutrition articles can be found at http://www.extension.umn.edu/agriculture/horse/nutrition/.

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