No. Starter feed does not cause liver damage over such a short, short term. Starter (chick) feed actually has lower percentage protein than an all flock or grower feed. I feed all flock to my new chicks, and have been for years, without any related health issues. Many people dispense with chick starter and feed all-flock feed to the entire flock all the time. The only feed with a marked difference in protein is layer but it's much too high in calcium for chicks. All the other feeds have only a one or two percent difference in protein between them.