My nyd chicks havent grown the only ones. Growing are three in a different bin. My others are with bantams that i got recently. Can worms stunt the growth if they have worms? What else can cause them to not grow. Even the bantams arent growing.
They're only less than 2 weeks old.
Where would chicks obtain worms?
Start with good bloodlines, good nutrition, clean water and huge ventilation and there are no issues.
If you haven't already treat those chicks with a good quality mite dust ASAP. Carbaryl (sevin dust) is good, sprinkle a good amount in your hand, rub your hands together and then rub it all over the chicks. Treat the hen too and any other chicks that was in contact with them. Parasites can and will KILL chicks, not just stunt them. Feed them a good quality chick starter, the hen too, it will be good for her.
A game bird starter may possibly be too high in protein. What is the protein percentage of the feed and how long have you been feeding it?