Date of this Version
Mussehl, F. E. (1944). Poultry progress: how long should a chicken live? (University of Nebraska Agricultural Experiment Station Circular No. 77-1)
Increased laying flock mortality has disturbed thoughtful hatcherymen, producers, processors, and research workers for several years, and very properly so, because hens which die before their time serve no useful purpose, except to raise in our minds the question, "Why?"