jchny, just give them a little more time. How long has it been since the feed error was discovered? I suppose organ damage is the biggest concern, but if they lost some weight, they will need to regain all plus some for winter warmth. It takes time, especially with these short days. If you resign yourself to not getting eggs until the approach of spring, you will probably get some sooner.
(Something similar happened to a friend who gave up on having a second child after 7 years of trying, and then within a year, got pregnant at 40!)
