If you look at state trout records, mostly in the Northeast, Southeast, and Mid-West, you can almost count on those fish as having been hatchery raised. To give an example, the current New Jersey state-record brook trout weighs 7 pounds, 3 ounces, and was caught in the Rockaway River. I promise you it didn't get that fat sipping emergers and crawfish. That fish was grown in a metal tank, pellet fed, and dumped in the river. Yet no one balks at the record. The current world-record rainbow trout, all 48 pounds of it, is a mutant strain of hatchery fish. Many anglers may not have like it, but there was no public outcry or protest over it becoming a world-record.