Hooge , Danny M., et al. “Dose-Responses of Broiler Chicks, Given Live Coccidia Vaccine on Day of Hatch, to Diets Supplemented With Various Levels of Farmatan® (Sweet Chestnut Wood Tannins) or BMD® Stafac&Reg; in a 42-Day Pen Trial”. International Journal of Poultry Science, vol. 11, no. 7, June 2012, pp. 474–481, https://doi.org/10.3923/ijps.2012.474.481.