A few chicks from a batch of eggs I ordered have hatched with problems. I feel like it could be a vitamin deficiency in breeders but I can't find any information. One chick has a growth on its neck, another has no feathers on its neck or top of head, one has intestines hanging out, and 2 have problems with legs (one leg just drags behind them). Several of the eggs pipped but didn't hatch. It stormed here the day of hatch and humidity shot up very high, other than that everything went as usual during incubation. I also had several other breeds from other sources with no issues other than sticky hatchlings (that I expect was from humidity spike). The ones with issues were the only shipped eggs and the breed was blue laced red Wyandotte. If anyone can give me info as to what caused this and how to prevent it in the future it would be greatly appreciated! Thank you!