McCrea, B.A., et al. “Live Performance Characteristics, Pathogen Load and Foot Pad Lesions in Range-Reared Heritage Vs. Conventional Turkeys (Meleagris Gallopavo)”. International Journal of Poultry Science, vol. 11, no. 7, June 2012, pp. 438–444, https://doi.org/10.3923/ijps.2012.438.444.