I met with a breeder and purchased 8 cute little Blue/Black Copper Marans, and stopped at the feed store on the way home to get a bag of chick starter. I talked to the counter clerk about my new chicks and my chickens at home, then the stockroom clerk loaded the feed in my car. All the chicks seemed happy & healthy in their clean brooder (far away from the rest of the chickens) fresh paper towel bedding, fresh food, fresh water with Sav-A-Chick electrolytes added. Not too hot, not too cold. Normal droppings and chick behavior. Then I started losing them. Everything would be fine at night, but the next morning there were dead chicks. (At this point let me interject that I have raised over a hundred chicks and have never lost any like this. There were no signs or symptoms of coccidiosis, and all had been eating & drinking well. None of the dead chicks had any external injuries, and all were normal chick weight for their age.) After losing the 3rd one I looked closer at the "Chick Starter" feed bag. In fine print it was labeled for turkeys & game birds, not chicken chicks, even though it had a silhouette of a chick on the bag... not what I asked for. Comparing the label with the same brand, different variety of "Chick Starter/Grower" for chickens, I find that the turkey chick feed is 20% higher in Protein, 35% higher in Lysine, 42% higher in Calcium, and 23% more Phosphorus than the chicken chick feed. Very frustrating because the 3 chicks I lost were worth more than the bag of feed. I know that too much calcium causes kidney damage, too much protein (and Lysine which is used to break down the protein) can cause liver damage, so my question is, will the 5 surviving chicks have permanent organ damage that will affect their laying ability? They were on the wrong feed for the first full week after hatch.