I normally use purina layena or dumor layer feed if the feed store is out of purina. Recently, I had to buy another brand at a local co-op. The ingredient list and nutrition label looked like similar value. Within a couple of days the size of the eggs were decreased. The feed store just called me to tell me that the layena is back in stock so I will get that again. Has anybody else had this happen. Is it a fluke, or is it the feed?