Ask the Nutritionist: Dr. Getty's Forum for Equine Nutrition
Welcome to my forum.
Here you will find more than 6 years of questions and my answers. It is searchable and offers a great deal of information.
Currently, I am discontinuing new questions. This may change in the future, but in the meantime, please know that It has been a true pleasure serving you.
Take a look at my Nutrition Library and Tips of the Month for a variety of answers on selected topics. Be sure to sign up for my monthly e-newsletter, Forage for Thought.
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And finally, look for my articles in a variety of local publications and online newsletters, as well as the Horse Journal, where I am the Contributing Nutrition Editor.
All the best,
Dr. Getty
Hi Nancy,
Silage is often fed to horses in the UK without any consequence. There are commercial silage/haylage products that guard against mold through vacuum packaging. But, in your case, this precaution may not be in place.
Under most farm conditions there is a danger of mold during the grass fermentation, since it is moist. Mold is not as much a danger to cattle as it can be for horses. So, I would caution you against feeding it.
All the best,
Dr. Getty 
Where are you from? Bayfield, CO