Said , Muhammad Irfan, Effendi Abustam, Wempie Pakıdıng, Muhammad Zain Mıde, and Asyhadi Umar. 2018. “Characteristics of Broiler Feather Protein Concentrate Prepared Under Different Production Processes”. International Journal of Poultry Science 17 (10): 507–514. https://doi.org/10.3923/ijps.2018.507.514.