Vicente, J., Lopez, C., Avila, E., Morales, E., Hargis, B., & Tellez, G. (2007). Effect of Dietary Natural Capsaicin on Experimental Salmonella enteritidis Infection and Yolk Pigmentation in Laying Hens. International Journal of Poultry Science, 6(6), 393–396. https://doi.org/10.3923/ijps.2007.393.396