how much hay?

A few months ago I did a favour for a friend and did her horse for her in the morning whilst doing my own. She wasn’t specific about how much haylage I need to put in for her horse and she has a big almost bath tub bucket in the stable for it so I just filled it up thinking that would be...

I am looking to buy a 12 year old 17hh, thoroughbred and was wondering if people who own similar sized horses could help me with some simple guide lines as to how much hay they feed, how much and what types of hard feed they feed, how often and for how long they turn out for, and how large their...