Westover, Maryland - March 20, 2017: Dr. Bruce Stewart-Brown, the chief veterinarian at Perdue, holds one of Perdue's conventional chickens, left, and a slow growth chicken, right, inside one of the chicken houses at the Westover Test Farm in Westover, Md., Monday March 20, 2017. The slow growth chicken is smaller, and more active than the conventional chicken, which has a more voracious appetite.
The test farm hatches, houses, and offers a place to study the differences between Perdue's conventional chickens and breeds of slow growth chickens.
CREDIT: Matt Roth for The New York Times
Assignment ID: 30204189A