Home›Books›Chickens in NPIP hatchery supply flocks and their distribution by states and varieties, 1941-42, 1951-52 and 1952-53Chickens in NPIP hatchery supply flocks and their distribution by states and varieties, 1941-42, 1951-52 and 1952-53by United States. Agricultural Research AdministrationNo description available.BreedingStatisticsChickensNational Poultry Improvement Plan (U.S.)