Depending age, quality of feed, and forage....
Say 50 pounds could last me bit over a week on 10 layers and 20 growing birds.
That might even be a low estimate. It depends on forage, feed quality and age of birds. If say over 10 weeks age and good forage then sure, just under 2 weeks in above equation. I feed a 20 percent all flock type feed (turkey finisher).