Our cat loves raw chicken breast, we buy him cheaper meat, sometimes if he couldn’t eat everything, we would cook some of his meat, I noticed these stripes after cooking, the rubbery feel and bland taste. For ourselves, we usually buy meat with label rouge, means that chickens grow slowly and up to 81 days vs ordinary chicken usually killed after 35-40 days. I don’t see the stripes and the meat tastes much better.
I don’t know if price is a reliable indicator.
Maybe check carefully before buying?
And touch it as well.