2020 Poultry Science 99:2001–2006 https://doi.org/10.1016/j.psj.2019.11.032
In the abstract, the sentence “However, despite the ideal yield of eggs treated with ethanolic extract of propolis (69.25 ± 1.68%), its application at the concentration used in the present research is not recommended.” was incorrect. The sentence is changed to “However, due to the high yield of eggs treated with ethanolic extract of propolis (69.25 ± 1.68%), its application at the concentration used in the present research is not recommended.” This error has been corrected online.