Supplements for grazing horses

Question
I will be working on a horse boarding ranch in Southern Arizona.  90 acres of irrigated pasture.  I'd like to know what supplements these horses need while on bermuda grass/summer or winter mix/winter pasture?

Answer
Dear Terri,

ADM make a good mineral block and or crumble for horses at pasture

http://www.admani.com/AllianceEquine/MineralsVitamins.htm

and otherwise there is a AZ formulated supplement that I have seen used for horses fed bermuda hay in AZ and I don't see why it wouldn't work for pasture as well.  It might not be so easy to feed pastured horses though but would work if they get anything else in a bucket.

http://www.horsetech.com/popular-customs.htm#Quick%20Links%20to%20Product%20Page...

here are some notes by the person who puts this mix together they are based on very sound principles.

http://desertequinebalance.blogspot.com/

Hope this helps.

Best regards,

Clair Thunes, PhD.
Independent Equine Nutritionist,
Equilibrate Equine Consulting,
clair@equilibrateequine.com
www.equilibrateequine.com