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Horses - Diet and Nutrition/moldy/wet hay leading to laminitis


hello ma'am. does moldy hay/wet hay leads to laminitis in future stages if not taken proper care?

Hello Rohit,

Feeding moldy hay is not safe for a number of reasons.  Wet hay, provided it is properly fermented and contains no mold, can be fed to horses...although we often recommend horses are vaccinated against botulism first as a precaution.

Laminitis is a complex disease whose precise cause is not yet fully understood.  There is such a wide range of triggers that can cause laminitis that its possible to suggest that moldy hay can act as one of those triggers, although it wouldn't be the sole reason to caution against moldy hay.


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Corlena Patterson


I can help with any of your horse nutrition questions and concerns. I have been involved with horses for closing on 40 years, with a B.Sc in Animal Science and currently working on an M.Sc in Equine Science with the University of Edinburgh. I have owned my own feed store, consulted professionally as an equine nutritionist, and lectured in the fields of equine and dairy nutrition at the University level for 5 years. I have developed and currently market 'Ration-X', a ration formulation program for horses...designed for the everyday horse owner. I am happy to help in any way I can.


Experienced in developing and implementing feed programs for horses of all disciplines, creating custom horse supplements and managing inter-disciplinary equine facilities. Specialize in equine nutrition consulting.

The American Society of Equine Appraisers

'Stable Management' Handbook, Equine Canada.

M.Sc (Equine Science-current), B.Sc(Agr) Animal Science, Equine Sports Massage Therapy Certification, Farrier Certification, Equine Consultant Certification, Certified Equine Appraiser, Certified in Emergency Equine Rescue.

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