I don't think so. They have plenty of water, plus i give them watermelon and other fruit. They free range on several acres, so they should get enough grit from the soil, right? I've never had this issue in 13 years with all of the same products/property/coop/etc.
Help needed! I have 25 hens (Barred Rocks, Buffs, Amerucanas) and 2 months ago they just quit laying. The eldest are 3 years old, but most were born last June. This time of year, I'm usually up to my neck in eggs, and since April I've had about 1 egg per week.
They free range all day and go into...
