Lee, K.-W., Everts, H., Kappert, H., Kuilen, J. V. D., Lemmens, A., Frehner, M., & Beynen, A. (2004). Growth Performance, Intestinal Viscosity, Fat Digestibility and Plasma Cholesterol in Broiler Chickens Fed a Rye-containing Diet Without or with Essential Oil Components. International Journal of Poultry Science, 3(9), 613–618. https://doi.org/10.3923/ijps.2004.613.618