Horse Ranch Hands and Overtime in California?

I am wondering if they are exempt from overtime. I have looked over the law and can only find a section that involves race horse operations and actual farming and agricultural operations. So I'm wondering if in California someone who works (not on a race horse facility but a regular facility used for broodmares and training for horse shows) feeding horses and doing general maintenance around the property 9 hours a day 6 days a week is exempt from overtime?