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I add meal worms and dinner scraps to their feed in the morning... It doesn't take much. Others use a higher protein feed that has less calcium and just supplement with oyster shells... I can't remember the kind of feed it is though.... Also make sure there are no mites in boxes.. That can...
As you become aware of the community you will learn personalities of some of the members. Aart is always a facts and figures kind of guy... Don't think he's trying to be mean... Good luck with your girls.
I know my girls lay better when I supplement more protein into their layer food... We have had a drop off of eggs as well due to our weather..... But not completely... This might be something worth trying maybe....