We have extensive archive of back issues of Avian Science Notes, California Poultry Letter, Egg Economics Update, Monthly Egg Industry, and Poultry Parade, going back to year 1965 (Poultry Parade, November 23, 1965):

Back Issues of Avian Science Notes
Back Issues of California Poultry Letter
Back Issues of Egg Economics Update
Back Issues of Monthly Egg Industry Statistics
Back Issues of Poultry Parade